Cluster goes into CrashLoopBackOff after 5-10 minutes of running

[iekulyk]

What did you do?
Deployed cluster using manifests:

• 3 master nodes
• 3 coordinating nodes
• 3 data/ingest nodes
• 1 ml node

What did you expect to see?
Stable cluster, no failing pods without any load on ElasticSearch cluster

What did you see instead? Under which circumstances?
Afer ~5-10 minutes of running cluster with no any load, pods started to fail, some with OOMKilled others fall into CrashLoopBackOff

Environment

• Kubernetes information:

On top of AWS, built with kops

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.2", GitCommit:"66049e3b21efe110454d67df4fa62b08ea79a19b", GitTreeState:"clean", BuildDate:"2019-05-16T18:55:03Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.9", GitCommit:"16236ce91790d4c75b79f6ce96841db1c843e7d2", GitTreeState:"clean", BuildDate:"2019-03-25T06:30:48Z", GoVersion:"go1.10.8", Compiler:"gc", Platform:"linux/amd64"}

• Resource definition:

apiVersion: elasticsearch.k8s.elastic.co/v1alpha1
kind: Elasticsearch
metadata:
  name: es-poc
  labels:
    controller-tools.k8s.io: "1.0"
    app: elasticsearch
    component: elasticsearch-cluster
    release: poc-1.0.0
spec:
  # Cluster setup
  version: 7.1.0
  nodes:
  # Master Nodes
  - nodeCount: 3
    config:
      node.master: true
      node.data: false
      node.ingest: false
      node.ml: false
      cluster.remote.connect: false
      xpack.monitoring.collection.enabled: true
    podTemplate:
      spec:
        serviceAccountName: elasticsearch
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "4Gi"
      meta:
        labels:
          app: elasticsearch
          component: master-node
          release: poc-1.0.0


# ----------------

  # Coordinating Nodes
  - nodeCount: 3
    config:
      node.master: false
      node.data: false
      node.ingest: false
      node.ml: false
      xpack.monitoring.collection.enabled: true
    podTemplate:
      spec:
        serviceAccountName: elasticsearch
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "4Gi"
      meta:
        labels:
          app: elasticsearch
          component: coordinating-node
          release: poc-1.0.0
 

# ----------------
  
  # Machine Learning Nodes
  - nodeCount: 1
    config:
      node.master: false
      node.data: false
      node.ingest: false
      node.ml: true
      xpack.monitoring.collection.enabled: true
    podTemplate:
      spec:
        serviceAccountName: elasticsearch
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "8Gi"
      meta:
        labels:
          app: elasticsearch
          component: ml-node
          release: poc-1.0.0

# ----------------s
  
  # Data Ingest Nodes
  - nodeCount: 3
    config:
      node.master: false
      node.data: true
      node.ingest: true
      node.ml: false
      xpack.monitoring.collection.enabled: true 
    podTemplate:
      spec:
        serviceAccountName: elasticsearch
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "8Gi"
      meta:
        labels:
          app: elasticsearch
          component: data-node
          release: poc-1.0.0

• Logs:
  some of the error logs from operator

{"level":"error","ts":1560497089.0797975,"logger":"kubebuilder.controller","msg":"Reconciler error","controller":"elasticsearch-controller","request":"dev-telemetry/es-poc","error":"Get http://100.106.0.7:8001/csr: dial tcp 100.106.0.7:8001: connect: no route to host","errorCauses":[{"error":"Get http://100.106.0.7:8001/csr: dial tcp 100.106.0.7:8001: connect: no route to host"}],"stacktrace":"github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:217\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}
{"level":"error","ts":1560497132.3934348,"logger":"kubebuilder.controller","msg":"Reconciler error","controller":"elasticsearch-controller","request":"dev-telemetry/es-poc","error":"unable to delete /_cluster/voting_config_exclusions: 503 Service Unavailable: ","errorCauses":[{"error":"unable to delete /_cluster/voting_config_exclusions: 503 Service Unavailable: unknown","errorVerbose":"503 Service Unavailable: unknown\nunable to delete /_cluster/voting_config_exclusions\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client.(*clientV7).DeleteVotingConfigExclusions\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client/v7.go:53\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7.UpdateZen2Settings\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7/zen2.go:36\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver.(*defaultDriver).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver/default.go:397\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).internalReconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:283\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:228\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:215\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1333"}],"stacktrace":"github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:217\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}
{"level":"error","ts":1560498437.5513227,"logger":"kubebuilder.controller","msg":"Reconciler error","controller":"elasticsearch-controller","request":"dev-telemetry/es-poc","error":"unable to delete /_cluster/voting_config_exclusions: Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF","errorCauses":[{"error":"unable to delete /_cluster/voting_config_exclusions: Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF","errorVerbose":"Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF\nunable to delete /_cluster/voting_config_exclusions\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client.(*clientV7).DeleteVotingConfigExclusions\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client/v7.go:53\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7.UpdateZen2Settings\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7/zen2.go:36\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver.(*defaultDriver).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver/default.go:397\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).internalReconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:283\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:228\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:215\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1333"}],"stacktrace":"github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:217\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}
{"level":"error","ts":1560847166.8442552,"logger":"kubebuilder.controller","msg":"Reconciler error","controller":"elasticsearch-controller","request":"dev-telemetry/es-poc","error":"unable to delete /_cluster/voting_config_exclusions: Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF","errorCauses":[{"error":"unable to delete /_cluster/voting_config_exclusions: Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF","errorVerbose":"Delete https://es-poc-es.dev-telemetry.svc.cluster.local:9200/_cluster/voting_config_exclusions?wait_for_removal=false: EOF\nunable to delete /_cluster/voting_config_exclusions\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client.(*clientV7).DeleteVotingConfigExclusions\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/client/v7.go:53\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7.UpdateZen2Settings\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/version/version7/zen2.go:36\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver.(*defaultDriver).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/driver/default.go:397\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).internalReconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:283\ngithub.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch.(*ReconcileElasticsearch).Reconcile\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/pkg/controller/elasticsearch/elasticsearch_controller.go:228\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:215\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1333"}],"stacktrace":"github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:217\ngithub.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/go/src/github.com/elastic/cloud-on-k8s/operators/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}

Nodes logs

Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp
Likely root cause: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp
	at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:94)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
	at java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:219)
	at java.base/java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:478)
	at java.base/java.nio.file.Files.newOutputStream(Files.java:222)
	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
	at org.elasticsearch.common.settings.KeyStoreWrapper.save(KeyStoreWrapper.java:462)
	at org.elasticsearch.bootstrap.Bootstrap.loadSecureSettings(Bootstrap.java:232)
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:289)
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159)
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150)
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124)
	at org.elasticsearch.cli.Command.main(Command.java:90)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
Refer to the log for complete error details.

{"level":"info","ts":1560847565.3037622,"logger":"keystore-updater","msg":"Deleted keystore","keystore-path":"/usr/share/elasticsearch/config/elasticsearch.keystore"}
{"level":"info","ts":1560847565.3038428,"logger":"keystore-updater","msg":"Creating keystore","keystore-path":"/usr/share/elasticsearch/config/elasticsearch.keystore"}
{"type": "server", "timestamp": "2019-06-18T08:46:07,824+0000", "level": "INFO", "component": "o.e.x.m.p.NativeController", "cluster.name": "es-poc", "node.name": "es-poc-es-ss7pqk8x8n",  "message": "Native controller process has stopped - no new native processes can be started"  }
{"level":"info","ts":1560847568.4866347,"logger":"process-manager","msg":"Update process state","action":"terminate","id":"es","state":"failed","pid":15}
{"level":"info","ts":1560847568.5039022,"logger":"process-manager","msg":"HTTP server closed"}
{"level":"info","ts":1560847568.5046427,"logger":"process-manager","msg":"Exit","reason":"process failed","code":-1}

[iekulyk]

Limits and requests were increased to resolve:

  # Master Nodes
  - nodeCount: 3
    config:
      node.master: true
      node.data: false
      node.ingest: false
      node.ml: false
      cluster.remote.connect: false
      xpack.monitoring.collection.enabled: true
    podTemplate:
      spec:
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "4096Mi"
            limits:
              memory: "4096Mi"
  # -------------
  # Data Ingest Nodes
  - nodeCount: 3
    config:
      node.master: false
      node.data: true
      node.ingest: true
      node.ml: false
      xpack.monitoring.collection.enabled: true 
    podTemplate:
      spec:
        containers:
        - name: elasticsearch
          resources:
            requests:
              memory: "4096Mi"
            limits:
              memory: "4096Mi"
              

[iekulyk]

Cluster still crashes into OOMKilled and then to CrashLoopBackOff after 45-60 minutes with new config

[sebgl]

@iekulyk thanks for reporting this.
It looks like there a 2 different types of problems here: OOM kill on one hand, CrashLoopBackOff on the other hand.

Regarding the OOM Kill, could you share the last logs (kubectl logs <pod_name>) and spec (kubectl get pod <pod_name>) of a pod that was killed? I would like to double-check it correctly has the 4096Mi memory limit applied.
Btw only resource limits can be applied on release 0.8, release 0.9 will allow you to also set resources requests.

For pods in a CrashLoopBackOff state, do you observe the same logs as before (Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp)?

[iekulyk]

@sebgl, thanks for response

I've reduced cluster size :
2 data nodes, 1 master
currently 2 nodes in CrashLoopBackOff

node 1 logs (es-poc-es-zlqnp85q6m)

{"level":"info","ts":1560932013.8047047,"logger":"process-manager","msg":"Update process state","action":"initialization","id":"es","state":"failed","pid":0}
{"level":"info","ts":1560932013.80478,"logger":"process-manager","msg":"Starting..."}
{"level":"info","ts":1560932013.8063214,"logger":"process-manager","msg":"Update process state","action":"start","id":"es","state":"started","pid":14}
{"level":"info","ts":1560932013.806349,"logger":"process-manager","msg":"Started"}
{"level":"info","ts":1560932013.8104854,"logger":"keystore-updater","msg":"Waiting for Elasticsearch to be ready"}
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
{"type": "server", "timestamp": "2019-06-19T08:13:36,516+0000", "level": "INFO", "component": "o.e.e.NodeEnvironment", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "using [1] data paths, mounts [[/usr/share/elasticsearch/data (/dev/nvme0n1p1)]], net usable_space [123.2gb], net total_space [127.9gb], types [xfs]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:36,520+0000", "level": "INFO", "component": "o.e.e.NodeEnvironment", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "heap size [3.9gb], compressed ordinary object pointers [true]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:36,529+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "node name [es-poc-es-zlqnp85q6m], node ID [75Pl3S5SQgWyVAgcNCvCtg], cluster name [es-poc]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:36,529+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "version[7.1.0], pid[14], build[default/docker/606a173/2019-05-16T00:43:15.323135Z], OS[Linux/3.10.0-862.14.4.el7.x86_64/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/12.0.1/12.0.1+12]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:36,530+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "JVM home [/usr/share/elasticsearch/jdk]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:36,530+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -Des.networkaddress.cache.ttl=60, -Des.networkaddress.cache.negative.ttl=10, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.io.tmpdir=/tmp/elasticsearch-16847378613771449580, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=data, -XX:ErrorFile=logs/hs_err_pid%p.log, -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m, -Djava.locale.providers=COMPAT, -Dio.netty.allocator.type=unpooled, -Des.cgroups.hierarchy.override=/, -Xms4096M, -Xmx4096M, -Djava.security.properties=/usr/share/elasticsearch/config/managed/security.properties, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/usr/share/elasticsearch/config, -Des.distribution.flavor=default, -Des.distribution.type=docker, -Des.bundled_jdk=true]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,335+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [aggs-matrix-stats]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,336+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [analysis-common]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,336+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [ingest-common]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,336+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [ingest-geoip]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,336+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [ingest-user-agent]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,337+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [lang-expression]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,337+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [lang-mustache]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,337+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [lang-painless]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,337+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [mapper-extras]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,337+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [parent-join]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,338+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [percolator]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,338+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [rank-eval]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,338+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [reindex]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,338+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [repository-url]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,338+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [transport-netty4]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,339+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-ccr]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,339+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-core]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,339+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-deprecation]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,339+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-graph]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,339+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-ilm]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,340+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-logstash]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,340+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-ml]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,340+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-monitoring]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,340+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-rollup]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,340+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-security]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,341+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-sql]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,341+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded module [x-pack-watcher]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,341+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded plugin [repository-gcs]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:39,342+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "loaded plugin [repository-s3]"  }
{"type": "deprecation", "timestamp": "2019-06-19T08:13:41,496+0000", "level": "WARN", "component": "o.e.d.c.s.Settings", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "[discovery.zen.minimum_master_nodes] setting was deprecated in Elasticsearch and will be removed in a future release! See the breaking changes documentation for the next major version."  }
{"type": "deprecation", "timestamp": "2019-06-19T08:13:41,499+0000", "level": "WARN", "component": "o.e.d.c.s.Settings", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "[discovery.zen.hosts_provider] setting was deprecated in Elasticsearch and will be removed in a future release! See the breaking changes documentation for the next major version."  }
{"type": "server", "timestamp": "2019-06-19T08:13:42,963+0000", "level": "INFO", "component": "o.e.x.s.a.s.FileRolesStore", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "parsed [2] roles from file [/usr/share/elasticsearch/config/roles.yml]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:43,349+0000", "level": "INFO", "component": "o.e.x.m.p.l.CppLogMessageHandler", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "[controller/90] [Main.cc@109] controller (64 bit): Version 7.1.0 (Build a8ee6de8087169) Copyright (c) 2019 Elasticsearch BV"  }
{"type": "server", "timestamp": "2019-06-19T08:13:43,713+0000", "level": "DEBUG", "component": "o.e.a.ActionModule", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "Using REST wrapper from plugin org.elasticsearch.xpack.security.Security"  }
{"level":"info","ts":1560932023.8366818,"logger":"keystore-updater","msg":"Waiting for Elasticsearch to be ready"}
{"type": "server", "timestamp": "2019-06-19T08:13:43,967+0000", "level": "INFO", "component": "o.e.d.DiscoveryModule", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "using discovery type [zen] and seed hosts providers [settings, file]"  }
{"type": "server", "timestamp": "2019-06-19T08:13:44,645+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "initialized"  }
{"type": "server", "timestamp": "2019-06-19T08:13:44,645+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "starting ..."  }
{"type": "server", "timestamp": "2019-06-19T08:13:45,070+0000", "level": "INFO", "component": "o.e.x.m.p.NativeController", "cluster.name": "es-poc", "node.name": "es-poc-es-zlqnp85q6m",  "message": "Native controller process has stopped - no new native processes can be started"  }
{"level":"info","ts":1560932025.370031,"logger":"process-manager","msg":"Update process state","action":"terminate","id":"es","state":"failed","pid":14}
{"level":"info","ts":1560932025.3862207,"logger":"process-manager","msg":"HTTP server closed"}
{"level":"info","ts":1560932025.3861277,"logger":"process-manager","msg":"Exit","reason":"process failed","code":-1}

node 1 spec (es-poc-es-zlqnp85q6m)

apiVersion: v1
kind: Pod
metadata:
  annotations:
    update.k8s.elastic.co/timestamp: "2019-06-19T04:08:29.370994917Z"
  creationTimestamp: "2019-06-18T15:22:22Z"
  labels:
    common.k8s.elastic.co/type: elasticsearch
    elasticsearch.k8s.elastic.co/cluster-name: es-poc
    elasticsearch.k8s.elastic.co/node-data: "true"
    elasticsearch.k8s.elastic.co/node-ingest: "true"
    elasticsearch.k8s.elastic.co/node-master: "false"
    elasticsearch.k8s.elastic.co/node-ml: "true"
    elasticsearch.k8s.elastic.co/pod-name: es-poc-es-zlqnp85q6m
    elasticsearch.k8s.elastic.co/version: 7.1.0
  name: es-poc-es-zlqnp85q6m
  namespace: dev-telemetry
  ownerReferences:
  - apiVersion: elasticsearch.k8s.elastic.co/v1alpha1
    blockOwnerDeletion: true
    controller: true
    kind: Elasticsearch
    name: es-poc
    uid: dd4bc77e-91dc-11e9-8bac-0ae689a1e762
  resourceVersion: "113279087"
  selfLink: /api/v1/namespaces/dev-telemetry/pods/es-poc-es-zlqnp85q6m
  uid: de88877e-91dc-11e9-8bac-0ae689a1e762
spec:
  automountServiceAccountToken: false
  containers:
  - command:
    - /mnt/elastic/process-manager/process-manager
    env:
    - name: POD_NAME
      valueFrom:
        fieldRef:
          apiVersion: v1
          fieldPath: metadata.name
    - name: POD_IP
      valueFrom:
        fieldRef:
          apiVersion: v1
          fieldPath: status.podIP
    - name: ES_JAVA_OPTS
      value: -Xms4096M -Xmx4096M -Djava.security.properties=/usr/share/elasticsearch/config/managed/security.properties
    - name: READINESS_PROBE_PROTOCOL
      value: https
    - name: PROBE_USERNAME
      value: elastic-internal-probe
    - name: PROBE_PASSWORD_FILE
      value: /mnt/elastic/probe-user/elastic-internal-probe
    - name: PM_PROC_NAME
      value: es
    - name: PM_PROC_CMD
      value: /usr/local/bin/docker-entrypoint.sh
    - name: PM_TLS
      value: "true"
    - name: PM_CERT_PATH
      value: /usr/share/elasticsearch/config/node-certs/cert.pem
    - name: PM_KEY_PATH
      value: /usr/share/elasticsearch/config/private-key/node.key
    - name: KEYSTORE_SOURCE_DIR
      value: /mnt/elastic/secure-settings
    - name: KEYSTORE_RELOAD_CREDENTIALS
      value: "true"
    - name: KEYSTORE_ES_USERNAME
      value: elastic-internal-reload-creds
    - name: KEYSTORE_ES_PASSWORD_FILE
      value: /mnt/elastic/reload-creds-user/elastic-internal-reload-creds
    - name: KEYSTORE_ES_CA_CERTS_PATH
      value: /usr/share/elasticsearch/config/node-certs/ca.pem
    - name: KEYSTORE_ES_ENDPOINT
      value: https://127.0.0.1:9200
    - name: KEYSTORE_ES_VERSION
      value: 7.1.0
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: elasticsearch
    ports:
    - containerPort: 9200
      name: http
      protocol: TCP
    - containerPort: 9300
      name: transport
      protocol: TCP
    - containerPort: 8080
      name: process-manager
      protocol: TCP
    readinessProbe:
      exec:
        command:
        - bash
        - -c
        - "\n#!/usr/bin/env bash\n# Consider a node to be healthy if it responds to
          a simple GET on \"/\"\nCURL_TIMEOUT=3\n\n# setup basic auth if credentials
          are available\nif [ -n \"${PROBE_USERNAME}\" ] && [ -f \"${PROBE_PASSWORD_FILE}\"
          ]; then\n  PROBE_PASSWORD=$(<$PROBE_PASSWORD_FILE)\n  BASIC_AUTH=\"-u ${PROBE_USERNAME}:${PROBE_PASSWORD}\"\nelse\n
          \ BASIC_AUTH=''\nfi\n\n# request Elasticsearch\nstatus=$(curl -o /dev/null
          -w \"%{http_code}\" --max-time $CURL_TIMEOUT -XGET -s -k ${BASIC_AUTH} ${READINESS_PROBE_PROTOCOL:-https}://127.0.0.1:9200)\n\n#
          ready if status code 200\nif [[ $status == \"200\" ]]; then\n\texit 0\nelse\n\texit
          1\nfi\n"
      failureThreshold: 3
      initialDelaySeconds: 10
      periodSeconds: 10
      successThreshold: 3
      timeoutSeconds: 5
    resources:
      limits:
        memory: 8Gi
      requests:
        memory: 8Gi
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /usr/share/elasticsearch/config
      name: config-volume
    - mountPath: /usr/share/elasticsearch/plugins
      name: plugins-volume
    - mountPath: /usr/share/elasticsearch/bin
      name: bin-volume
    - mountPath: /usr/share/elasticsearch/data
      name: data
    - mountPath: /usr/share/elasticsearch/logs
      name: logs
    - mountPath: /usr/share/elasticsearch/config/private-key
      name: private-key-volume
    - mountPath: /mnt/elastic/process-manager
      name: local-bin-volume
    - mountPath: /mnt/elastic/secrets
      name: users
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/managed
      name: es-poc
      readOnly: true
    - mountPath: /mnt/elastic/unicast-hosts
      name: es-poc-unicast-hosts
      readOnly: true
    - mountPath: /mnt/elastic/probe-user
      name: probe-user
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/extrafiles
      name: extrafiles
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/node-certs
      name: node-certificates
      readOnly: true
    - mountPath: /mnt/elastic/reload-creds-user
      name: reload-creds-user
      readOnly: true
    - mountPath: /mnt/elastic/secure-settings
      name: secure-settings
      readOnly: true
    - mountPath: /mnt/elastic/es-config
      name: es-config
      readOnly: true
  dnsPolicy: ClusterFirst
  initContainers:
  - command:
    - sysctl
    - -w
    - vm.max_map_count=262144
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: tweak-os-settings
    resources: {}
    securityContext:
      privileged: true
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
  - command:
    - bash
    - -c
    - "#!/usr/bin/env bash -eu\n\n\tES_DIR=\"/usr/share/elasticsearch\"\n\tCONFIG_DIR=$ES_DIR/config\n\tPLUGIN_BIN=$ES_DIR/bin/elasticsearch-plugin\n\tKEYSTORE_BIN=$ES_DIR/bin/elasticsearch-keystore
      \n\n\t# compute time in seconds since the given start time\n\tfunction duration()
      {\n\t\tlocal start=$1\n\t\tend=$(date +%s)\n\t\techo $((end-start))\n\t}\n\n\t######################\n\t#
      \       START       #\n\t######################\n\n\tscript_start=$(date +%s)\n\n\techo
      \"Starting init script\"\n\n\t######################\n\t#       Plugins      #\n\t######################\n\n\tplugins_start=$(date
      +%s)\n\t# Install extra plugins\n\t\n\t\techo \"Installing plugin repository-s3\"\n\t\t#
      Using --batch accepts any user prompt (y/n)\n\t\t$PLUGIN_BIN install --batch
      repository-s3\n\t\n\t\techo \"Installing plugin repository-gcs\"\n\t\t# Using
      --batch accepts any user prompt (y/n)\n\t\t$PLUGIN_BIN install --batch repository-gcs\n\t\n\n\techo
      \"Installed plugins:\"\n\t$PLUGIN_BIN list\n\n\techo \"Plugins installation
      duration: $(duration $plugins_start) sec.\"\n\n\t######################\n\t#
      \ Config linking    #\n\t######################\n\n\t# Link individual files
      from their mount location into the config dir\n\t# to a volume, to be used by
      the ES container\n\tln_start=$(date +%s)\n\t\n\t\techo \"Linking /mnt/elastic/secrets/users
      to /usr/share/elasticsearch/config/users\"\n\t\tln -sf /mnt/elastic/secrets/users
      /usr/share/elasticsearch/config/users\n\t\n\t\techo \"Linking /mnt/elastic/secrets/roles.yml
      to /usr/share/elasticsearch/config/roles.yml\"\n\t\tln -sf /mnt/elastic/secrets/roles.yml
      /usr/share/elasticsearch/config/roles.yml\n\t\n\t\techo \"Linking /mnt/elastic/secrets/users_roles
      to /usr/share/elasticsearch/config/users_roles\"\n\t\tln -sf /mnt/elastic/secrets/users_roles
      /usr/share/elasticsearch/config/users_roles\n\t\n\t\techo \"Linking /mnt/elastic/es-config/elasticsearch.yml
      to /usr/share/elasticsearch/config/elasticsearch.yml\"\n\t\tln -sf /mnt/elastic/es-config/elasticsearch.yml
      /usr/share/elasticsearch/config/elasticsearch.yml\n\t\n\t\techo \"Linking /mnt/elastic/unicast-hosts/unicast_hosts.txt
      to /usr/share/elasticsearch/config/unicast_hosts.txt\"\n\t\tln -sf /mnt/elastic/unicast-hosts/unicast_hosts.txt
      /usr/share/elasticsearch/config/unicast_hosts.txt\n\t\n\techo \"File linking
      duration: $(duration $ln_start) sec.\"\n\n\n\t######################\n\t#  Files
      persistence #\n\t######################\n\n\t# Persist the content of bin/,
      config/ and plugins/\n\t# to a volume, to be used by the ES container\n\tmv_start=$(date
      +%s)\n\t\n\t\techo \"Moving /usr/share/elasticsearch/config/* to /volume/config/\"\n\t\tmv
      /usr/share/elasticsearch/config/* /volume/config/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/plugins/*
      to /volume/plugins/\"\n\t\tmv /usr/share/elasticsearch/plugins/* /volume/plugins/\n\t\n\t\techo
      \"Moving /usr/share/elasticsearch/bin/* to /volume/bin/\"\n\t\tmv /usr/share/elasticsearch/bin/*
      /volume/bin/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/data/* to /volume/data/\"\n\t\tmv
      /usr/share/elasticsearch/data/* /volume/data/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/logs/*
      to /volume/logs/\"\n\t\tmv /usr/share/elasticsearch/logs/* /volume/logs/\n\t\n\techo
      \"Files copy duration: $(duration $mv_start) sec.\"\n\n\t######################\n\t#
      \ Volumes chown     #\n\t######################\n\n\t# chown the data and logs
      volume to the elasticsearch user\n\tchown_start=$(date +%s)\n\t\n\t\techo \"chowning
      /volume/data to elasticsearch:elasticsearch\"\n\t\tchown -v elasticsearch:elasticsearch
      /volume/data\n\t\n\t\techo \"chowning /volume/logs to elasticsearch:elasticsearch\"\n\t\tchown
      -v elasticsearch:elasticsearch /volume/logs\n\t\n\techo \"chown duration: $(duration
      $chown_start) sec.\"\n\n\t######################\n\t#         End        #\n\t######################\n\n\techo
      \"Init script successful\"\n\techo \"Script duration: $(duration $script_start)
      sec.\"\n"
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: prepare-fs
    resources: {}
    securityContext:
      privileged: false
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /volume/config
      name: config-volume
    - mountPath: /volume/plugins
      name: plugins-volume
    - mountPath: /volume/bin
      name: bin-volume
    - mountPath: /volume/data
      name: data
    - mountPath: /volume/logs
      name: logs
  - command:
    - bash
    - -c
    - "\n\t\t#!/usr/bin/env bash -eu\n\t\tcp process-manager $LOCAL_BIN\n"
    env:
    - name: LOCAL_BIN
      value: /volume/bin
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imagePullPolicy: IfNotPresent
    name: inject-process-manager
    resources: {}
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /volume/bin
      name: local-bin-volume
  - command:
    - /root/cert-initializer
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imagePullPolicy: Always
    name: cert-initializer
    ports:
    - containerPort: 8001
      name: csr
      protocol: TCP
    resources: {}
    securityContext:
      privileged: false
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /usr/share/elasticsearch/config/node-certs
      name: node-certificates
      readOnly: true
    - mountPath: /mnt/elastic/private-key
      name: private-key-volume
  nodeName: ip-172-19-75-225.eu-west-1.compute.internal
  priority: 0
  restartPolicy: Always
  schedulerName: default-scheduler
  securityContext: {}
  serviceAccount: default
  serviceAccountName: default
  terminationGracePeriodSeconds: 120
  tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
  - emptyDir: {}
    name: config-volume
  - emptyDir: {}
    name: plugins-volume
  - emptyDir: {}
    name: bin-volume
  - emptyDir: {}
    name: data
  - emptyDir: {}
    name: logs
  - emptyDir: {}
    name: private-key-volume
  - emptyDir: {}
    name: local-bin-volume
  - name: users
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-roles-users
  - configMap:
      defaultMode: 420
      name: es-poc
      optional: false
    name: es-poc
  - configMap:
      defaultMode: 420
      name: es-poc-unicast-hosts
      optional: false
    name: es-poc-unicast-hosts
  - name: probe-user
    secret:
      defaultMode: 420
      items:
      - key: elastic-internal-probe
        path: elastic-internal-probe
      optional: false
      secretName: es-poc-internal-users
  - name: extrafiles
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-extrafiles
  - name: reload-creds-user
    secret:
      defaultMode: 420
      items:
      - key: elastic-internal-reload-creds
        path: elastic-internal-reload-creds
      optional: false
      secretName: es-poc-internal-users
  - name: secure-settings
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-secure-settings
  - name: elasticsearch-data
    persistentVolumeClaim:
      claimName: es-poc-es-zlqnp85q6m-elasticsearch-data
  - name: node-certificates
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-zlqnp85q6m-certs
  - name: es-config
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-zlqnp85q6m-config
status:
  conditions:
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T04:08:29Z"
    status: "True"
    type: Initialized
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T06:19:26Z"
    message: 'containers with unready status: [elasticsearch]'
    reason: ContainersNotReady
    status: "False"
    type: Ready
  - lastProbeTime: null
    lastTransitionTime: null
    message: 'containers with unready status: [elasticsearch]'
    reason: ContainersNotReady
    status: "False"
    type: ContainersReady
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T04:07:05Z"
    status: "True"
    type: PodScheduled
  containerStatuses:
  - containerID: docker://c08200420b7f38fb5e15e9327529f40e4462d63588478500cc442f03c2441c51
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState:
      terminated:
        containerID: docker://c08200420b7f38fb5e15e9327529f40e4462d63588478500cc442f03c2441c51
        exitCode: 255
        finishedAt: "2019-06-19T08:13:45Z"
        reason: OOMKilled
        startedAt: "2019-06-19T08:13:33Z"
    name: elasticsearch
    ready: false
    restartCount: 26
    state:
      waiting:
        message: Back-off 5m0s restarting failed container=elasticsearch pod=es-poc-es-zlqnp85q6m_dev-telemetry(de88877e-91dc-11e9-8bac-0ae689a1e762)
        reason: CrashLoopBackOff
  hostIP: 172.19.75.225
  initContainerStatuses:
  - containerID: docker://f32c5fad8be28c766807df8313fb49ea3077cd6464ff239e17a4df56ddd014be
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState: {}
    name: tweak-os-settings
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://f32c5fad8be28c766807df8313fb49ea3077cd6464ff239e17a4df56ddd014be
        exitCode: 0
        finishedAt: "2019-06-19T04:07:44Z"
        reason: Completed
        startedAt: "2019-06-19T04:07:44Z"
  - containerID: docker://9f65e6caee0b96c44ad4b65e03b6659413c8176337ed1391a6f03bf9ada8fc35
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState: {}
    name: prepare-fs
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://9f65e6caee0b96c44ad4b65e03b6659413c8176337ed1391a6f03bf9ada8fc35
        exitCode: 0
        finishedAt: "2019-06-19T04:07:54Z"
        reason: Completed
        startedAt: "2019-06-19T04:07:45Z"
  - containerID: docker://14e47c5e8d1e36a9ad85df1e60503b83f58f009e3d9df5d1b31dd9f1a263ed45
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imageID: docker-pullable://docker.elastic.co/eck/eck-operator@sha256:1e910d2502690f9007d103f89cef92ef3c4f1115c08819edb3b7409481b291a3
    lastState: {}
    name: inject-process-manager
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://14e47c5e8d1e36a9ad85df1e60503b83f58f009e3d9df5d1b31dd9f1a263ed45
        exitCode: 0
        finishedAt: "2019-06-19T04:08:01Z"
        reason: Completed
        startedAt: "2019-06-19T04:08:01Z"
  - containerID: docker://51f49b912ac17934d4d8be14730163975de5be79c89010f341075cd2f8f9db35
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imageID: docker-pullable://docker.elastic.co/eck/eck-operator@sha256:1e910d2502690f9007d103f89cef92ef3c4f1115c08819edb3b7409481b291a3
    lastState: {}
    name: cert-initializer
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://51f49b912ac17934d4d8be14730163975de5be79c89010f341075cd2f8f9db35
        exitCode: 0
        finishedAt: "2019-06-19T04:08:29Z"
        reason: Completed
        startedAt: "2019-06-19T04:08:04Z"
  phase: Running
  podIP: 100.103.128.4
  qosClass: Burstable
  startTime: "2019-06-19T04:07:05Z"

node 2 logs (es-poc-es-nckxn896sn)

{"level":"info","ts":1560932215.7750769,"logger":"process-manager","msg":"Update process state","action":"initialization","id":"es","state":"failed","pid":0}
{"level":"info","ts":1560932215.7751539,"logger":"process-manager","msg":"Starting..."}
{"level":"info","ts":1560932215.7765884,"logger":"process-manager","msg":"Update process state","action":"start","id":"es","state":"started","pid":17}
{"level":"info","ts":1560932215.776638,"logger":"process-manager","msg":"Started"}
{"level":"info","ts":1560932215.779489,"logger":"keystore-updater","msg":"Waiting for Elasticsearch to be ready"}
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
{"type": "server", "timestamp": "2019-06-19T08:16:58,975+0000", "level": "INFO", "component": "o.e.e.NodeEnvironment", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "using [1] data paths, mounts [[/usr/share/elasticsearch/data (/dev/nvme0n1p1)]], net usable_space [91.7gb], net total_space [127.9gb], types [xfs]"  }
{"type": "server", "timestamp": "2019-06-19T08:16:58,980+0000", "level": "INFO", "component": "o.e.e.NodeEnvironment", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "heap size [1.9gb], compressed ordinary object pointers [true]"  }
{"type": "server", "timestamp": "2019-06-19T08:16:58,993+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "node name [es-poc-es-nckxn896sn], node ID [gq-eYTn-QBWQUuB1mDtI4A], cluster name [es-poc]"  }
{"type": "server", "timestamp": "2019-06-19T08:16:58,994+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "version[7.1.0], pid[17], build[default/docker/606a173/2019-05-16T00:43:15.323135Z], OS[Linux/3.10.0-862.14.4.el7.x86_64/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/12.0.1/12.0.1+12]"  }
{"type": "server", "timestamp": "2019-06-19T08:16:58,994+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "JVM home [/usr/share/elasticsearch/jdk]"  }
{"type": "server", "timestamp": "2019-06-19T08:16:58,995+0000", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -Des.networkaddress.cache.ttl=60, -Des.networkaddress.cache.negative.ttl=10, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.io.tmpdir=/tmp/elasticsearch-1370492985762362908, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=data, -XX:ErrorFile=logs/hs_err_pid%p.log, -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m, -Djava.locale.providers=COMPAT, -Dio.netty.allocator.type=unpooled, -Des.cgroups.hierarchy.override=/, -Xms2048M, -Xmx2048M, -Djava.security.properties=/usr/share/elasticsearch/config/managed/security.properties, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/usr/share/elasticsearch/config, -Des.distribution.flavor=default, -Des.distribution.type=docker, -Des.bundled_jdk=true]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,874+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [aggs-matrix-stats]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,874+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [analysis-common]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,874+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [ingest-common]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,874+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [ingest-geoip]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,874+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [ingest-user-agent]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [lang-expression]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [lang-mustache]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [lang-painless]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [mapper-extras]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [parent-join]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,875+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [percolator]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [rank-eval]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [reindex]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [repository-url]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [transport-netty4]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-ccr]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,876+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-core]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-deprecation]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-graph]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-ilm]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-logstash]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-ml]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,877+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-monitoring]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,878+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-rollup]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,878+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-security]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,878+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-sql]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,878+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded module [x-pack-watcher]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,879+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded plugin [repository-gcs]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:01,879+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "loaded plugin [repository-s3]"  }
{"type": "deprecation", "timestamp": "2019-06-19T08:17:04,368+0000", "level": "WARN", "component": "o.e.d.c.s.Settings", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "[discovery.zen.minimum_master_nodes] setting was deprecated in Elasticsearch and will be removed in a future release! See the breaking changes documentation for the next major version."  }
{"type": "deprecation", "timestamp": "2019-06-19T08:17:04,371+0000", "level": "WARN", "component": "o.e.d.c.s.Settings", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "[discovery.zen.hosts_provider] setting was deprecated in Elasticsearch and will be removed in a future release! See the breaking changes documentation for the next major version."  }
{"level":"info","ts":1560932225.8303845,"logger":"keystore-updater","msg":"Waiting for Elasticsearch to be ready"}
{"type": "server", "timestamp": "2019-06-19T08:17:05,970+0000", "level": "INFO", "component": "o.e.x.s.a.s.FileRolesStore", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "parsed [2] roles from file [/usr/share/elasticsearch/config/roles.yml]"  }
{"type": "server", "timestamp": "2019-06-19T08:17:06,540+0000", "level": "INFO", "component": "o.e.x.m.p.l.CppLogMessageHandler", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "[controller/89] [Main.cc@109] controller (64 bit): Version 7.1.0 (Build a8ee6de8087169) Copyright (c) 2019 Elasticsearch BV"  }
{"type": "server", "timestamp": "2019-06-19T08:17:07,031+0000", "level": "DEBUG", "component": "o.e.a.ActionModule", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "Using REST wrapper from plugin org.elasticsearch.xpack.security.Security"  }
{"type": "server", "timestamp": "2019-06-19T08:17:07,542+0000", "level": "INFO", "component": "o.e.x.m.p.NativeController", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "Native controller process has stopped - no new native processes can be started"  }
{"type": "server", "timestamp": "2019-06-19T08:17:07,622+0000", "level": "INFO", "component": "o.e.d.DiscoveryModule", "cluster.name": "es-poc", "node.name": "es-poc-es-nckxn896sn",  "message": "using discovery type [zen] and seed hosts providers [settings, file]"  }
{"level":"info","ts":1560932228.4319546,"logger":"process-manager","msg":"Update process state","action":"terminate","id":"es","state":"failed","pid":17}
{"level":"info","ts":1560932228.4471412,"logger":"process-manager","msg":"HTTP server closed"}
{"level":"info","ts":1560932228.4470956,"logger":"process-manager","msg":"Exit","reason":"process failed","code":-1}

node 2 spec (es-poc-es-nckxn896sn)

kind: Pod
metadata:
  annotations:
    update.k8s.elastic.co/timestamp: "2019-06-19T04:03:31.870642156Z"
  creationTimestamp: "2019-06-19T04:01:52Z"
  labels:
    common.k8s.elastic.co/type: elasticsearch
    elasticsearch.k8s.elastic.co/cluster-name: es-poc
    elasticsearch.k8s.elastic.co/node-data: "false"
    elasticsearch.k8s.elastic.co/node-ingest: "false"
    elasticsearch.k8s.elastic.co/node-master: "true"
    elasticsearch.k8s.elastic.co/node-ml: "true"
    elasticsearch.k8s.elastic.co/version: 7.1.0
  name: es-poc-es-nckxn896sn
  namespace: dev-telemetry
  ownerReferences:
  - apiVersion: elasticsearch.k8s.elastic.co/v1alpha1
    blockOwnerDeletion: true
    controller: true
    kind: Elasticsearch
    name: es-poc
    uid: dd4bc77e-91dc-11e9-8bac-0ae689a1e762
  resourceVersion: "113279912"
  selfLink: /api/v1/namespaces/dev-telemetry/pods/es-poc-es-nckxn896sn
  uid: f849eb50-9246-11e9-8bac-0ae689a1e762
spec:
  automountServiceAccountToken: false
  containers:
  - command:
    - /mnt/elastic/process-manager/process-manager
    env:
    - name: POD_NAME
      valueFrom:
        fieldRef:
          apiVersion: v1
          fieldPath: metadata.name
    - name: POD_IP
      valueFrom:
        fieldRef:
          apiVersion: v1
          fieldPath: status.podIP
    - name: ES_JAVA_OPTS
      value: -Xms2048M -Xmx2048M -Djava.security.properties=/usr/share/elasticsearch/config/managed/security.properties
    - name: READINESS_PROBE_PROTOCOL
      value: https
    - name: PROBE_USERNAME
      value: elastic-internal-probe
    - name: PROBE_PASSWORD_FILE
      value: /mnt/elastic/probe-user/elastic-internal-probe
    - name: PM_PROC_NAME
      value: es
    - name: PM_PROC_CMD
      value: /usr/local/bin/docker-entrypoint.sh
    - name: PM_TLS
      value: "true"
    - name: PM_CERT_PATH
      value: /usr/share/elasticsearch/config/node-certs/cert.pem
    - name: PM_KEY_PATH
      value: /usr/share/elasticsearch/config/private-key/node.key
    - name: KEYSTORE_SOURCE_DIR
      value: /mnt/elastic/secure-settings
    - name: KEYSTORE_RELOAD_CREDENTIALS
      value: "true"
    - name: KEYSTORE_ES_USERNAME
      value: elastic-internal-reload-creds
    - name: KEYSTORE_ES_PASSWORD_FILE
      value: /mnt/elastic/reload-creds-user/elastic-internal-reload-creds
    - name: KEYSTORE_ES_CA_CERTS_PATH
      value: /usr/share/elasticsearch/config/node-certs/ca.pem
    - name: KEYSTORE_ES_ENDPOINT
      value: https://127.0.0.1:9200
    - name: KEYSTORE_ES_VERSION
      value: 7.1.0
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: elasticsearch
    ports:
    - containerPort: 9200
      name: http
      protocol: TCP
    - containerPort: 9300
      name: transport
      protocol: TCP
    - containerPort: 8080
      name: process-manager
      protocol: TCP
    readinessProbe:
      exec:
        command:
        - bash
        - -c
        - "\n#!/usr/bin/env bash\n# Consider a node to be healthy if it responds to
          a simple GET on \"/\"\nCURL_TIMEOUT=3\n\n# setup basic auth if credentials
          are available\nif [ -n \"${PROBE_USERNAME}\" ] && [ -f \"${PROBE_PASSWORD_FILE}\"
          ]; then\n  PROBE_PASSWORD=$(<$PROBE_PASSWORD_FILE)\n  BASIC_AUTH=\"-u ${PROBE_USERNAME}:${PROBE_PASSWORD}\"\nelse\n
          \ BASIC_AUTH=''\nfi\n\n# request Elasticsearch\nstatus=$(curl -o /dev/null
          -w \"%{http_code}\" --max-time $CURL_TIMEOUT -XGET -s -k ${BASIC_AUTH} ${READINESS_PROBE_PROTOCOL:-https}://127.0.0.1:9200)\n\n#
          ready if status code 200\nif [[ $status == \"200\" ]]; then\n\texit 0\nelse\n\texit
          1\nfi\n"
      failureThreshold: 3
      initialDelaySeconds: 10
      periodSeconds: 10
      successThreshold: 3
      timeoutSeconds: 5
    resources:
      limits:
        memory: 4Gi
      requests:
        memory: 4Gi
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /usr/share/elasticsearch/config
      name: config-volume
    - mountPath: /usr/share/elasticsearch/plugins
      name: plugins-volume
    - mountPath: /usr/share/elasticsearch/bin
      name: bin-volume
    - mountPath: /usr/share/elasticsearch/data
      name: data
    - mountPath: /usr/share/elasticsearch/logs
      name: logs
    - mountPath: /usr/share/elasticsearch/config/private-key
      name: private-key-volume
    - mountPath: /mnt/elastic/process-manager
      name: local-bin-volume
    - mountPath: /mnt/elastic/secrets
      name: users
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/managed
      name: es-poc
      readOnly: true
    - mountPath: /mnt/elastic/unicast-hosts
      name: es-poc-unicast-hosts
      readOnly: true
    - mountPath: /mnt/elastic/probe-user
      name: probe-user
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/extrafiles
      name: extrafiles
      readOnly: true
    - mountPath: /usr/share/elasticsearch/config/node-certs
      name: node-certificates
      readOnly: true
    - mountPath: /mnt/elastic/reload-creds-user
      name: reload-creds-user
      readOnly: true
    - mountPath: /mnt/elastic/secure-settings
      name: secure-settings
      readOnly: true
    - mountPath: /mnt/elastic/es-config
      name: es-config
      readOnly: true
  dnsPolicy: ClusterFirst
  initContainers:
  - command:
    - sysctl
    - -w
    - vm.max_map_count=262144
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: tweak-os-settings
    resources: {}
    securityContext:
      privileged: true
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
  - command:
    - bash
    - -c
    - "#!/usr/bin/env bash -eu\n\n\tES_DIR=\"/usr/share/elasticsearch\"\n\tCONFIG_DIR=$ES_DIR/config\n\tPLUGIN_BIN=$ES_DIR/bin/elasticsearch-plugin\n\tKEYSTORE_BIN=$ES_DIR/bin/elasticsearch-keystore
      \n\n\t# compute time in seconds since the given start time\n\tfunction duration()
      {\n\t\tlocal start=$1\n\t\tend=$(date +%s)\n\t\techo $((end-start))\n\t}\n\n\t######################\n\t#
      \       START       #\n\t######################\n\n\tscript_start=$(date +%s)\n\n\techo
      \"Starting init script\"\n\n\t######################\n\t#       Plugins      #\n\t######################\n\n\tplugins_start=$(date
      +%s)\n\t# Install extra plugins\n\t\n\t\techo \"Installing plugin repository-s3\"\n\t\t#
      Using --batch accepts any user prompt (y/n)\n\t\t$PLUGIN_BIN install --batch
      repository-s3\n\t\n\t\techo \"Installing plugin repository-gcs\"\n\t\t# Using
      --batch accepts any user prompt (y/n)\n\t\t$PLUGIN_BIN install --batch repository-gcs\n\t\n\n\techo
      \"Installed plugins:\"\n\t$PLUGIN_BIN list\n\n\techo \"Plugins installation
      duration: $(duration $plugins_start) sec.\"\n\n\t######################\n\t#
      \ Config linking    #\n\t######################\n\n\t# Link individual files
      from their mount location into the config dir\n\t# to a volume, to be used by
      the ES container\n\tln_start=$(date +%s)\n\t\n\t\techo \"Linking /mnt/elastic/secrets/users
      to /usr/share/elasticsearch/config/users\"\n\t\tln -sf /mnt/elastic/secrets/users
      /usr/share/elasticsearch/config/users\n\t\n\t\techo \"Linking /mnt/elastic/secrets/roles.yml
      to /usr/share/elasticsearch/config/roles.yml\"\n\t\tln -sf /mnt/elastic/secrets/roles.yml
      /usr/share/elasticsearch/config/roles.yml\n\t\n\t\techo \"Linking /mnt/elastic/secrets/users_roles
      to /usr/share/elasticsearch/config/users_roles\"\n\t\tln -sf /mnt/elastic/secrets/users_roles
      /usr/share/elasticsearch/config/users_roles\n\t\n\t\techo \"Linking /mnt/elastic/es-config/elasticsearch.yml
      to /usr/share/elasticsearch/config/elasticsearch.yml\"\n\t\tln -sf /mnt/elastic/es-config/elasticsearch.yml
      /usr/share/elasticsearch/config/elasticsearch.yml\n\t\n\t\techo \"Linking /mnt/elastic/unicast-hosts/unicast_hosts.txt
      to /usr/share/elasticsearch/config/unicast_hosts.txt\"\n\t\tln -sf /mnt/elastic/unicast-hosts/unicast_hosts.txt
      /usr/share/elasticsearch/config/unicast_hosts.txt\n\t\n\techo \"File linking
      duration: $(duration $ln_start) sec.\"\n\n\n\t######################\n\t#  Files
      persistence #\n\t######################\n\n\t# Persist the content of bin/,
      config/ and plugins/\n\t# to a volume, to be used by the ES container\n\tmv_start=$(date
      +%s)\n\t\n\t\techo \"Moving /usr/share/elasticsearch/config/* to /volume/config/\"\n\t\tmv
      /usr/share/elasticsearch/config/* /volume/config/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/plugins/*
      to /volume/plugins/\"\n\t\tmv /usr/share/elasticsearch/plugins/* /volume/plugins/\n\t\n\t\techo
      \"Moving /usr/share/elasticsearch/bin/* to /volume/bin/\"\n\t\tmv /usr/share/elasticsearch/bin/*
      /volume/bin/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/data/* to /volume/data/\"\n\t\tmv
      /usr/share/elasticsearch/data/* /volume/data/\n\t\n\t\techo \"Moving /usr/share/elasticsearch/logs/*
      to /volume/logs/\"\n\t\tmv /usr/share/elasticsearch/logs/* /volume/logs/\n\t\n\techo
      \"Files copy duration: $(duration $mv_start) sec.\"\n\n\t######################\n\t#
      \ Volumes chown     #\n\t######################\n\n\t# chown the data and logs
      volume to the elasticsearch user\n\tchown_start=$(date +%s)\n\t\n\t\techo \"chowning
      /volume/data to elasticsearch:elasticsearch\"\n\t\tchown -v elasticsearch:elasticsearch
      /volume/data\n\t\n\t\techo \"chowning /volume/logs to elasticsearch:elasticsearch\"\n\t\tchown
      -v elasticsearch:elasticsearch /volume/logs\n\t\n\techo \"chown duration: $(duration
      $chown_start) sec.\"\n\n\t######################\n\t#         End        #\n\t######################\n\n\techo
      \"Init script successful\"\n\techo \"Script duration: $(duration $script_start)
      sec.\"\n"
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imagePullPolicy: IfNotPresent
    name: prepare-fs
    resources: {}
    securityContext:
      privileged: false
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /volume/config
      name: config-volume
    - mountPath: /volume/plugins
      name: plugins-volume
    - mountPath: /volume/bin
      name: bin-volume
    - mountPath: /volume/data
      name: data
    - mountPath: /volume/logs
      name: logs
  - command:
    - bash
    - -c
    - "\n\t\t#!/usr/bin/env bash -eu\n\t\tcp process-manager $LOCAL_BIN\n"
    env:
    - name: LOCAL_BIN
      value: /volume/bin
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imagePullPolicy: IfNotPresent
    name: inject-process-manager
    resources: {}
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /volume/bin
      name: local-bin-volume
  - command:
    - /root/cert-initializer
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imagePullPolicy: Always
    name: cert-initializer
    ports:
    - containerPort: 8001
      name: csr
      protocol: TCP
    resources: {}
    securityContext:
      privileged: false
      runAsUser: 0
    terminationMessagePath: /dev/termination-log
    terminationMessagePolicy: File
    volumeMounts:
    - mountPath: /usr/share/elasticsearch/config/node-certs
      name: node-certificates
      readOnly: true
    - mountPath: /mnt/elastic/private-key
      name: private-key-volume
  nodeName: ip-172-19-74-179.eu-west-1.compute.internal
  priority: 0
  restartPolicy: Always
  schedulerName: default-scheduler
  securityContext: {}
  serviceAccount: default
  serviceAccountName: default
  terminationGracePeriodSeconds: 120
  tolerations:
  - effect: NoExecute
    key: node.kubernetes.io/not-ready
    operator: Exists
    tolerationSeconds: 300
  - effect: NoExecute
    key: node.kubernetes.io/unreachable
    operator: Exists
    tolerationSeconds: 300
  volumes:
  - emptyDir: {}
    name: config-volume
  - emptyDir: {}
    name: plugins-volume
  - emptyDir: {}
    name: bin-volume
  - emptyDir: {}
    name: data
  - emptyDir: {}
    name: logs
  - emptyDir: {}
    name: private-key-volume
  - emptyDir: {}
    name: local-bin-volume
  - name: users
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-roles-users
  - configMap:
      defaultMode: 420
      name: es-poc
      optional: false
    name: es-poc
  - configMap:
      defaultMode: 420
      name: es-poc-unicast-hosts
      optional: false
    name: es-poc-unicast-hosts
  - name: probe-user
    secret:
      defaultMode: 420
      items:
      - key: elastic-internal-probe
        path: elastic-internal-probe
      optional: false
      secretName: es-poc-internal-users
  - name: extrafiles
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-extrafiles
  - name: reload-creds-user
    secret:
      defaultMode: 420
      items:
      - key: elastic-internal-reload-creds
        path: elastic-internal-reload-creds
      optional: false
      secretName: es-poc-internal-users
  - name: secure-settings
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-secure-settings
  - name: node-certificates
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-nckxn896sn-certs
  - name: es-config
    secret:
      defaultMode: 420
      optional: false
      secretName: es-poc-es-nckxn896sn-config
status:
  conditions:
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T04:03:32Z"
    status: "True"
    type: Initialized
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T04:46:40Z"
    message: 'containers with unready status: [elasticsearch]'
    reason: ContainersNotReady
    status: "False"
    type: Ready
  - lastProbeTime: null
    lastTransitionTime: null
    message: 'containers with unready status: [elasticsearch]'
    reason: ContainersNotReady
    status: "False"
    type: ContainersReady
  - lastProbeTime: null
    lastTransitionTime: "2019-06-19T04:01:52Z"
    status: "True"
    type: PodScheduled
  containerStatuses:
  - containerID: docker://a7c44a01d0af5579049c1bb4fb83c70242d7e87aa7832fdb79bbf22b2dda35b3
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState:
      terminated:
        containerID: docker://a7c44a01d0af5579049c1bb4fb83c70242d7e87aa7832fdb79bbf22b2dda35b3
        exitCode: 255
        finishedAt: "2019-06-19T08:17:08Z"
        reason: OOMKilled
        startedAt: "2019-06-19T08:16:55Z"
    name: elasticsearch
    ready: false
    restartCount: 44
    state:
      waiting:
        message: Back-off 5m0s restarting failed container=elasticsearch pod=es-poc-es-nckxn896sn_dev-telemetry(f849eb50-9246-11e9-8bac-0ae689a1e762)
        reason: CrashLoopBackOff
  hostIP: 172.19.74.179
  initContainerStatuses:
  - containerID: docker://ffc4e521a27e759341a55ce1458362af378e9072987547c90847e2e92bbd5aa3
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState: {}
    name: tweak-os-settings
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://ffc4e521a27e759341a55ce1458362af378e9072987547c90847e2e92bbd5aa3
        exitCode: 0
        finishedAt: "2019-06-19T04:01:58Z"
        reason: Completed
        startedAt: "2019-06-19T04:01:58Z"
  - containerID: docker://311a2b78650f8d21e71542af3f2d2cfdae13c1b0fd44be4021d26f77aa1d4090
    image: docker.elastic.co/elasticsearch/elasticsearch:7.1.0
    imageID: docker-pullable://docker.elastic.co/elasticsearch/elasticsearch@sha256:802b6a299260dbaf21a9c57e3a634491ff788a1ea13a51598d4cd105739509c4
    lastState: {}
    name: prepare-fs
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://311a2b78650f8d21e71542af3f2d2cfdae13c1b0fd44be4021d26f77aa1d4090
        exitCode: 0
        finishedAt: "2019-06-19T04:02:12Z"
        reason: Completed
        startedAt: "2019-06-19T04:01:59Z"
  - containerID: docker://6b882580d792367426046df37e8969e5be8ffb33c6e45955c01935afd97d5e13
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imageID: docker-pullable://docker.elastic.co/eck/eck-operator@sha256:1e910d2502690f9007d103f89cef92ef3c4f1115c08819edb3b7409481b291a3
    lastState: {}
    name: inject-process-manager
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://6b882580d792367426046df37e8969e5be8ffb33c6e45955c01935afd97d5e13
        exitCode: 0
        finishedAt: "2019-06-19T04:02:14Z"
        reason: Completed
        startedAt: "2019-06-19T04:02:14Z"
  - containerID: docker://1b4cb60bd27cac59115cdce2696ebab3138d7847b786f09900b16f8520af0bee
    image: docker.elastic.co/eck/eck-operator:0.8.0
    imageID: docker-pullable://docker.elastic.co/eck/eck-operator@sha256:1e910d2502690f9007d103f89cef92ef3c4f1115c08819edb3b7409481b291a3
    lastState: {}
    name: cert-initializer
    ready: true
    restartCount: 0
    state:
      terminated:
        containerID: docker://1b4cb60bd27cac59115cdce2696ebab3138d7847b786f09900b16f8520af0bee
        exitCode: 0
        finishedAt: "2019-06-19T04:03:32Z"
        reason: Completed
        startedAt: "2019-06-19T04:03:31Z"
  phase: Running
  podIP: 100.119.0.14
  qosClass: Burstable
  startTime: "2019-06-19T04:01:52Z"

---

No logs with Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp

for kubectl logs <pod_name> --previous too

I'll redeploy cluster with original configuration again to see if they will appear

[sebgl]

Looking at node 1:

 lastState:
      terminated:
        containerID: docker://c08200420b7f38fb5e15e9327529f40e4462d63588478500cc442f03c2441c51
        exitCode: 255
        finishedAt: "2019-06-19T08:13:45Z"
        reason: OOMKilled
        startedAt: "2019-06-19T08:13:33Z"

The pod seems to be killed by Kubernetes, out of memory. According to the spec it should be running with a 8Gi memory limit. The JVM heap size is correctly set to 4Gi.

Do you have a lot of shards in that cluster @iekulyk? Maybe a 4Gi JVM heap is not enough. GET /_cat/health?v should display the number of shards, if you can manage to reach ES endpoint.

[iekulyk]

@sebgl, there is no data on that cluster
only imported from Kibana UI (samples)
shards - 4
documents - 1,033
data - 985.0 K

[barkbay]

Hi, could provide the output of the following command on the K8S node: sudo dmesg -T ?
Thank you

[barkbay]

If the output is to verbose please just copy/paste the part where there're details about the last OOMKiller activities.

[iekulyk]

[Wed Jun 19 09:15:41 2019] Memory cgroup out of memory: Kill process 30572 (elasticsearch[e) score 1499 or sacrifice child
[Wed Jun 19 09:15:41 2019] Killed process 30025 (java) total-vm:4770836kB, anon-rss:1298548kB, file-rss:21304kB, shmem-rss:0kB
[Wed Jun 19 09:15:41 2019] process-manager invoked oom-killer: gfp_mask=0x50, order=0, oom_score_adj=869
[Wed Jun 19 09:15:41 2019] IPv4: martian source 100.127.0.9 from 100.101.128.0, on dev datapath
[Wed Jun 19 09:15:41 2019] ll header: 00000000: ff ff ff ff ff ff 8e 88 3a bb 95 49 08 06        ........:..I..
[Wed Jun 19 09:15:41 2019] process-manager cpuset=0b7821b76fccf45f9b6e383269be1012b4afb3281c7bf22df74162b345acf20f mems_allowed=0
[Wed Jun 19 09:15:41 2019] CPU: 3 PID: 30024 Comm: process-manager Tainted: G               ------------ T 3.10.0-862.14.4.el7.x86_64 #1
[Wed Jun 19 09:15:41 2019] Hardware name: Amazon EC2 m5.xlarge/, BIOS 1.0 10/16/2017
...
 Task in / killed as a result of limit of /kubepods/burstable/pod996fb235-926f-11e9-8bac-0ae689a1e762
[Wed Jun 19 09:15:41 2019] memory: usage 809536kB, limit 2097152kB, failcnt 159697
[Wed Jun 19 09:15:41 2019] memory+swap: usage 809980kB, limit 9007199254740988kB, failcnt 0
[Wed Jun 19 09:15:41 2019] kmem: usage 783896kB, limit 9007199254740988kB, failcnt 0
[Wed Jun 19 09:15:41 2019] Memory cgroup stats for /kubepods/burstable/pod996fb235-926f-11e9-8bac-0ae689a1e762: cache:0KB rss:0KB rss_huge:0KB mapped_file:0KB swap:0KB inactive_anon:0KB active_anon:0KB inactive_file:0KB active_file:0KB unevictable:0KB
[Wed Jun 19 09:15:41 2019] Memory cgroup stats for /kubepods/burstable/pod996fb235-926f-11e9-8bac-0ae689a1e762/40c8643ac456f5957d1f3609ecfc428cec46915af0f71400ce004c2c4942c950: cache:0KB rss:40KB rss_huge:0KB mapped_file:0KB swap:0KB inactive_anon:0KB active_anon:40KB inactive_file:0KB active_file:0KB unevictable:0KB

[iekulyk]

And i still can see Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: for some pods

Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp
Likely root cause: java.nio.file.FileAlreadyExistsException: /usr/share/elasticsearch/config/elasticsearch.keystore.tmp
	at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:94)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
	at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
	at java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:219)
	at java.base/java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:478)
	at java.base/java.nio.file.Files.newOutputStream(Files.java:222)
	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
	at org.elasticsearch.common.settings.KeyStoreWrapper.save(KeyStoreWrapper.java:462)
	at org.elasticsearch.bootstrap.Bootstrap.loadSecureSettings(Bootstrap.java:232)
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:289)
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159)
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150)
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124)
	at org.elasticsearch.cli.Command.main(Command.java:90)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115)
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
Refer to the log for complete error details.

[barkbay]

3.10.0-862.14.4.el7.x86_64

It looks like you are using Centos7 or a distribution based on the Red Hat kernel.
Note that this kernel is pretty old and there are some known issues regarding the way the "kernel memory" is accounted within cgroups.

I have been able to reproduce your experience on a CentOS 7 distribution, pods were killed just after a few minutes of activity.

To solve this problem you have to use Docker 18.09.x and patch the kubelet as described here(don't forget to reboot). I did it myself and the OOMKiller has not been triggered so far.
Of course you also have the option to use another distribution.

Also note that disabling the kernel memory accounting by passing the cgroup.memory=nokmem argument to the kernel is not enough as the kubelet will enable it at runtime if not patched.

Regarding the issue with the keystore temp. file there is an other issue open

[barkbay]

As a side note here is the command to disable kernel memory accounting at startup on CentOS 7:
sudo /sbin/grubby --update-kernel=ALL --args='cgroup.memory=nokmem'

You still have to patch the kubelet though.

[iekulyk]

Hi @barkbay , thanks for the advice

While it is not fast to make changes to our k8s cluster, I've tried to deploy elasticsearch cluster with official helm charts and it is stable so far

3 master - 30 gb storate, 2 gb ram
3 client - 30 gb storate, 2 gb ram
3 data - 30 gb storate, 2 gb ram

---

As we have some amount of deployments already in same k8s cluster (including ElasticSearch cluster we deployed with own helm charts 1.5 year ago) and we don't have such problems with any other deployments

Any chance that we installed the operator in some way that it was corrupted and now causing this issues ?

Thanks