Add Solr input plugin (#2019)

README.md

@@ -195,6 +195,7 @@ configuration options.
 * [smart](./plugins/inputs/smart)
 * [snmp](./plugins/inputs/snmp)
 * [snmp_legacy](./plugins/inputs/snmp_legacy)
+* [solr](./plugins/inputs/solr)
 * [sql server](./plugins/inputs/sqlserver) (microsoft)
 * [teamspeak](./plugins/inputs/teamspeak)
 * [tomcat](./plugins/inputs/tomcat)

etc/telegraf.conf

@@ -2329,6 +2329,15 @@
 #     sub_tables=[".1.3.6.1.2.1.2.2.1.13", "bytes_recv", "bytes_send"]
 
 
+# # Read metrics from Solr Server
+# [[inputs.solr]]
+#   ## specify a list of one or more Solr servers
+#   servers = ["http://localhost:8983"]
+#   ##
+#   ## specify a list of one or more Solr cores (default - all)
+#   # cores = ["main"]
+
+
 # # Read metrics from Microsoft SQL Server
 # [[inputs.sqlserver]]
 #   ## Specify instances to monitor with a list of connection strings.

plugins/inputs/all/all.go

@@ -80,6 +80,7 @@ import (
 	_ "github.com/influxdata/telegraf/plugins/inputs/snmp"
 	_ "github.com/influxdata/telegraf/plugins/inputs/snmp_legacy"
 	_ "github.com/influxdata/telegraf/plugins/inputs/socket_listener"
+	_ "github.com/influxdata/telegraf/plugins/inputs/solr"
 	_ "github.com/influxdata/telegraf/plugins/inputs/sqlserver"
 	_ "github.com/influxdata/telegraf/plugins/inputs/statsd"
 	_ "github.com/influxdata/telegraf/plugins/inputs/sysstat"

plugins/inputs/solr/README.md

@@ -0,0 +1,31 @@
+# Solr input plugin
+
+The [solr](http://lucene.apache.org/solr/) plugin collects stats via the
+[MBean Request Handler](https://cwiki.apache.org/confluence/display/solr/MBean+Request+Handler)
+
+More about [performance statistics](https://cwiki.apache.org/confluence/display/solr/Performance+Statistics+Reference)
+
+### Configuration:
+
+```
+[[inputs.solr]]
+  ## specify a list of one or more Solr servers
+  servers = ["http://localhost:8983"]
+  ##
+  ## specify a list of one or more Solr cores (default - all)
+  # cores = ["main"]
+```
+
+### Example output of gathered metrics:
+
+```
+➜  ~ telegraf -config telegraf.conf -input-filter solr -test
+* Plugin: solr, Collection 1
+> solr_core,core=main,handler=searcher,host=testhost deleted_docs=17616645i,max_docs=261848363i,num_docs=244231718i 1478214949000000000
+> solr_core,core=main,handler=core,host=testhost deleted_docs=0i,max_docs=0i,num_docs=0i 1478214949000000000
+> solr_queryhandler,core=main,handler=/replication,host=testhost 15min_rate_reqs_per_second=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000444659081257,5min_rate_reqs_per_second=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000014821969375,75th_pc_request_time=16.484211,95th_pc_request_time=16.484211,999th_pc_request_time=16.484211,99th_pc_request_time=16.484211,avg_requests_per_second=0.0000008443809966322143,avg_time_per_request=12.984811,errors=0i,handler_start=1474662050865i,median_request_time=11.352427,requests=3i,timeouts=0i,total_time=38.954433 1478214949000000000
+> solr_queryhandler,core=main,handler=/update/extract,host=testhost 15min_rate_reqs_per_second=0,5min_rate_reqs_per_second=0,75th_pc_request_time=0,95th_pc_request_time=0,999th_pc_request_time=0,99th_pc_request_time=0,avg_requests_per_second=0,avg_time_per_request=0,errors=0i,handler_start=0i,median_request_time=0,requests=0i,timeouts=0i,total_time=0 1478214949000000000
+> solr_queryhandler,core=main,handler=org.apache.solr.handler.component.SearchHandler,host=testhost 15min_rate_reqs_per_second=0,5min_rate_reqs_per_second=0,75th_pc_request_time=0,95th_pc_request_time=0,999th_pc_request_time=0,99th_pc_request_time=0,avg_requests_per_second=0,avg_time_per_request=0,errors=0i,handler_start=1474662050861i,median_request_time=0,requests=0i,timeouts=0i,total_time=0 1478214949000000000
+> solr_queryhandler,core=main,handler=/tvrh,host=testhost 15min_rate_reqs_per_second=0,5min_rate_reqs_per_second=0,75th_pc_request_time=0,95th_pc_request_time=0,999th_pc_request_time=0,99th_pc_request_time=0,avg_requests_per_second=0,avg_time_per_request=0,errors=0i,handler_start=0i,median_request_time=0,requests=0i,timeouts=0i,total_time=0 1478214949000000000
+[…]
+```