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Add setting to ignore throttling nodes for allocation of unassigned r…
…emote primaries (#14991) Signed-off-by: Gaurav Bafna <gbbafna@amazon.com>
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154 changes: 154 additions & 0 deletions
154
...rc/test/java/org/opensearch/cluster/routing/allocation/DecideAllocateUnassignedTests.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
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| package org.opensearch.cluster.routing.allocation; | ||
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| import org.opensearch.Version; | ||
| import org.opensearch.action.support.replication.ClusterStateCreationUtils; | ||
| import org.opensearch.cluster.ClusterState; | ||
| import org.opensearch.cluster.OpenSearchAllocationTestCase; | ||
| import org.opensearch.cluster.metadata.IndexMetadata; | ||
| import org.opensearch.cluster.metadata.Metadata; | ||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.cluster.node.DiscoveryNodes; | ||
| import org.opensearch.cluster.routing.AllocationId; | ||
| import org.opensearch.cluster.routing.IndexRoutingTable; | ||
| import org.opensearch.cluster.routing.IndexShardRoutingTable; | ||
| import org.opensearch.cluster.routing.RoutingNode; | ||
| import org.opensearch.cluster.routing.RoutingTable; | ||
| import org.opensearch.cluster.routing.ShardRouting; | ||
| import org.opensearch.cluster.routing.ShardRoutingState; | ||
| import org.opensearch.cluster.routing.TestShardRouting; | ||
| import org.opensearch.cluster.routing.UnassignedInfo; | ||
| import org.opensearch.cluster.routing.allocation.allocator.BalancedShardsAllocator; | ||
| import org.opensearch.cluster.routing.allocation.decider.AllocationDecider; | ||
| import org.opensearch.cluster.routing.allocation.decider.AllocationDeciders; | ||
| import org.opensearch.cluster.routing.allocation.decider.Decision; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.core.index.shard.ShardId; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_CREATION_DATE; | ||
| import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_NUMBER_OF_REPLICAS; | ||
| import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_NUMBER_OF_SHARDS; | ||
| import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_VERSION_CREATED; | ||
| import static org.opensearch.cluster.routing.allocation.allocator.BalancedShardsAllocator.IGNORE_THROTTLE_FOR_REMOTE_RESTORE; | ||
|
|
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| public class DecideAllocateUnassignedTests extends OpenSearchAllocationTestCase { | ||
| public void testAllocateUnassignedRemoteRestore_IgnoreThrottle() { | ||
| final String[] indices = { "idx1" }; | ||
| // Create a cluster state with 1 indices, each with 1 started primary shard, and only | ||
| // one node initially so that all primary shards get allocated to the same node. | ||
| // | ||
| // When we add 1 more 1 index with 1 started primary shard and 1 more node , if the new node throttles the recovery | ||
| // shard should get assigned on the older node if IgnoreThrottle is set to true | ||
| ClusterState clusterState = ClusterStateCreationUtils.state(1, indices, 1); | ||
| clusterState = addNodesToClusterState(clusterState, 1); | ||
| clusterState = addRestoringIndexToClusterState(clusterState, "idx2"); | ||
| List<AllocationDecider> allocationDeciders = getAllocationDecidersThrottleOnNode1(); | ||
| RoutingAllocation routingAllocation = newRoutingAllocation(new AllocationDeciders(allocationDeciders), clusterState); | ||
| // allocate and get the node that is now relocating | ||
| Settings build = Settings.builder().put(IGNORE_THROTTLE_FOR_REMOTE_RESTORE.getKey(), true).build(); | ||
| BalancedShardsAllocator allocator = new BalancedShardsAllocator(build); | ||
| allocator.allocate(routingAllocation); | ||
| assertEquals(routingAllocation.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).currentNodeId(), "node_0"); | ||
| assertEquals(routingAllocation.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).getIndexName(), "idx2"); | ||
| assertFalse(routingAllocation.routingNodes().hasUnassignedPrimaries()); | ||
| } | ||
|
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| public void testAllocateUnassignedRemoteRestore() { | ||
| final String[] indices = { "idx1" }; | ||
| // Create a cluster state with 1 indices, each with 1 started primary shard, and only | ||
| // one node initially so that all primary shards get allocated to the same node. | ||
| // | ||
| // When we add 1 more 1 index with 1 started primary shard and 1 more node , if the new node throttles the recovery | ||
| // shard should remain unassigned if IgnoreThrottle is set to false | ||
| ClusterState clusterState = ClusterStateCreationUtils.state(1, indices, 1); | ||
| clusterState = addNodesToClusterState(clusterState, 1); | ||
| clusterState = addRestoringIndexToClusterState(clusterState, "idx2"); | ||
| List<AllocationDecider> allocationDeciders = getAllocationDecidersThrottleOnNode1(); | ||
| RoutingAllocation routingAllocation = newRoutingAllocation(new AllocationDeciders(allocationDeciders), clusterState); | ||
| // allocate and get the node that is now relocating | ||
| Settings build = Settings.builder().put(IGNORE_THROTTLE_FOR_REMOTE_RESTORE.getKey(), false).build(); | ||
| BalancedShardsAllocator allocator = new BalancedShardsAllocator(build); | ||
| allocator.allocate(routingAllocation); | ||
| assertEquals(routingAllocation.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), 0); | ||
| assertTrue(routingAllocation.routingNodes().hasUnassignedPrimaries()); | ||
| } | ||
|
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| private static List<AllocationDecider> getAllocationDecidersThrottleOnNode1() { | ||
| // Allocation Deciders to throttle on `node_1` | ||
| final Set<String> throttleNodes = new HashSet<>(); | ||
| throttleNodes.add("node_1"); | ||
| AllocationDecider allocationDecider = new AllocationDecider() { | ||
| @Override | ||
| public Decision canAllocate(ShardRouting shardRouting, RoutingNode node, RoutingAllocation allocation) { | ||
| if (throttleNodes.contains(node.nodeId())) { | ||
| return Decision.THROTTLE; | ||
| } | ||
| return Decision.YES; | ||
| } | ||
| }; | ||
| List<AllocationDecider> allocationDeciders = Arrays.asList(allocationDecider); | ||
| return allocationDeciders; | ||
| } | ||
|
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| private ClusterState addNodesToClusterState(ClusterState clusterState, int nodeId) { | ||
| DiscoveryNodes.Builder nodesBuilder = DiscoveryNodes.builder(clusterState.nodes()); | ||
| DiscoveryNode discoveryNode = newNode("node_" + nodeId); | ||
| nodesBuilder.add(discoveryNode); | ||
| return ClusterState.builder(clusterState).nodes(nodesBuilder).build(); | ||
| } | ||
|
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| private ClusterState addRestoringIndexToClusterState(ClusterState clusterState, String index) { | ||
| final int primaryTerm = 1 + randomInt(200); | ||
| final ShardId shardId = new ShardId(index, "_na_", 0); | ||
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| IndexMetadata indexMetadata = IndexMetadata.builder(index) | ||
| .settings( | ||
| Settings.builder() | ||
| .put(SETTING_VERSION_CREATED, Version.CURRENT) | ||
| .put(SETTING_NUMBER_OF_SHARDS, 1) | ||
| .put(SETTING_NUMBER_OF_REPLICAS, 0) | ||
| .put(SETTING_CREATION_DATE, System.currentTimeMillis()) | ||
| ) | ||
| .primaryTerm(0, primaryTerm) | ||
| .build(); | ||
|
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| IndexShardRoutingTable.Builder indexShardRoutingBuilder = new IndexShardRoutingTable.Builder(shardId); | ||
| UnassignedInfo unassignedInfo = new UnassignedInfo(UnassignedInfo.Reason.EXISTING_INDEX_RESTORED, null); | ||
| indexShardRoutingBuilder.addShard( | ||
| TestShardRouting.newShardRoutingRemoteRestore(index, shardId, null, null, true, ShardRoutingState.UNASSIGNED, unassignedInfo) | ||
| ); | ||
| final IndexShardRoutingTable indexShardRoutingTable = indexShardRoutingBuilder.build(); | ||
|
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| IndexMetadata.Builder indexMetadataBuilder = new IndexMetadata.Builder(indexMetadata); | ||
| indexMetadataBuilder.putInSyncAllocationIds( | ||
| 0, | ||
| indexShardRoutingTable.activeShards() | ||
| .stream() | ||
| .map(ShardRouting::allocationId) | ||
| .map(AllocationId::getId) | ||
| .collect(Collectors.toSet()) | ||
| ); | ||
| ClusterState.Builder state = ClusterState.builder(clusterState); | ||
| state.metadata(Metadata.builder(clusterState.metadata()).put(indexMetadataBuilder.build(), false).generateClusterUuidIfNeeded()); | ||
| state.routingTable( | ||
| RoutingTable.builder(clusterState.routingTable()) | ||
| .add(IndexRoutingTable.builder(indexMetadata.getIndex()).addIndexShard(indexShardRoutingTable)) | ||
| .build() | ||
| ); | ||
| return state.build(); | ||
| } | ||
|
|
||
| } |
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