Examples with MetaData org.elasticsearch.cluster.metadata.MetaData used on opensource projects

Example 61 with MetaData

use of org.elasticsearch.cluster.metadata.MetaData in project elasticsearch by elastic.

the class FailedShardsRoutingTests method testFailAllReplicasInitializingOnPrimaryFail.

public void testFailAllReplicasInitializingOnPrimaryFail() {
    AllocationService allocation = createAllocationService(Settings.builder().build());
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(2)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    ShardId shardId = new ShardId(metaData.index("test").getIndex(), 0);
    // add 4 nodes
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3")).add(newNode("node4"))).build();
    clusterState = ClusterState.builder(clusterState).routingTable(allocation.reroute(clusterState, "reroute").routingTable()).build();
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(UNASSIGNED).size(), equalTo(2));
    // start primary shards
    clusterState = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
    // start one replica so it can take over.
    clusterState = allocation.applyStartedShards(clusterState, Collections.singletonList(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).get(0)));
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(2));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
    ShardRouting startedReplica = clusterState.getRoutingNodes().activeReplica(shardId);
    // fail the primary shard, check replicas get removed as well...
    ShardRouting primaryShardToFail = clusterState.routingTable().index("test").shard(0).primaryShard();
    ClusterState newState = allocation.applyFailedShard(clusterState, primaryShardToFail);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    // the primary gets allocated on another node, replicas are initializing
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
    ShardRouting newPrimaryShard = clusterState.routingTable().index("test").shard(0).primaryShard();
    assertThat(newPrimaryShard, not(equalTo(primaryShardToFail)));
    assertThat(newPrimaryShard.allocationId(), equalTo(startedReplica.allocationId()));
}

Example 62 with MetaData

use of org.elasticsearch.cluster.metadata.MetaData in project elasticsearch by elastic.

the class FailedShardsRoutingTests method testSingleShardMultipleAllocationFailures.

public void testSingleShardMultipleAllocationFailures() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").build());
    logger.info("Building initial routing table");
    int numberOfReplicas = scaledRandomIntBetween(2, 10);
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(numberOfReplicas)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("Adding {} nodes and performing rerouting", numberOfReplicas + 1);
    DiscoveryNodes.Builder nodeBuilder = DiscoveryNodes.builder();
    for (int i = 0; i < numberOfReplicas + 1; i++) {
        nodeBuilder.add(newNode("node" + Integer.toString(i)));
    }
    clusterState = ClusterState.builder(clusterState).nodes(nodeBuilder).build();
    while (!clusterState.routingTable().shardsWithState(UNASSIGNED).isEmpty()) {
        // start all initializing
        clusterState = strategy.applyStartedShards(clusterState, clusterState.routingTable().shardsWithState(INITIALIZING));
        // and assign more unassigned
        clusterState = strategy.reroute(clusterState, "reroute");
    }
    int shardsToFail = randomIntBetween(1, numberOfReplicas);
    ArrayList<FailedShard> failedShards = new ArrayList<>();
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    Set<String> failedNodes = new HashSet<>();
    Set<ShardRouting> shardRoutingsToFail = new HashSet<>();
    for (int i = 0; i < shardsToFail; i++) {
        String failedNode = "node" + Integer.toString(randomInt(numberOfReplicas));
        logger.info("failing shard on node [{}]", failedNode);
        ShardRouting shardToFail = routingNodes.node(failedNode).iterator().next();
        if (shardRoutingsToFail.contains(shardToFail) == false) {
            failedShards.add(new FailedShard(shardToFail, null, null));
            failedNodes.add(failedNode);
            shardRoutingsToFail.add(shardToFail);
        }
    }
    clusterState = strategy.applyFailedShards(clusterState, failedShards);
    routingNodes = clusterState.getRoutingNodes();
    for (FailedShard failedShard : failedShards) {
        if (routingNodes.getByAllocationId(failedShard.getRoutingEntry().shardId(), failedShard.getRoutingEntry().allocationId().getId()) != null) {
            fail("shard " + failedShard + " was not failed");
        }
    }
    for (String failedNode : failedNodes) {
        if (!routingNodes.node(failedNode).isEmpty()) {
            fail("shard was re-assigned to failed node " + failedNode);
        }
    }
}

Example 63 with MetaData

use of org.elasticsearch.cluster.metadata.MetaData in project elasticsearch by elastic.

the class FailedShardsRoutingTests method testFailedShardPrimaryRelocatingToAndFrom.

public void testFailedShardPrimaryRelocatingToAndFrom() {
    AllocationService allocation = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").build());
    logger.info("--> building initial routing table");
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    logger.info("--> adding 2 nodes on same rack and do rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = allocation.reroute(clusterState, "reroute");
    // starting primaries
    clusterState = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    // starting replicas
    clusterState = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    logger.info("--> verifying all is allocated");
    assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
    assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
    logger.info("--> adding additional node");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    clusterState = allocation.reroute(clusterState, "reroute");
    assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
    assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
    assertThat(clusterState.getRoutingNodes().node("node3").size(), equalTo(0));
    String origPrimaryNodeId = clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId();
    String origReplicaNodeId = clusterState.routingTable().index("test").shard(0).replicaShards().get(0).currentNodeId();
    logger.info("--> moving primary shard to node3");
    AllocationService.CommandsResult commandsResult = allocation.reroute(clusterState, new AllocationCommands(new MoveAllocationCommand("test", 0, clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3")), false, false);
    assertThat(commandsResult.getClusterState(), not(equalTo(clusterState)));
    clusterState = commandsResult.getClusterState();
    assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(RELOCATING));
    assertThat(clusterState.getRoutingNodes().node("node3").iterator().next().state(), equalTo(INITIALIZING));
    logger.info("--> fail primary shard recovering instance on node3 being initialized");
    clusterState = allocation.applyFailedShard(clusterState, clusterState.getRoutingNodes().node("node3").iterator().next());
    assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(STARTED));
    assertThat(clusterState.getRoutingNodes().node("node3").size(), equalTo(0));
    logger.info("--> moving primary shard to node3");
    commandsResult = allocation.reroute(clusterState, new AllocationCommands(new MoveAllocationCommand("test", 0, clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3")), false, false);
    assertThat(commandsResult.getClusterState(), not(equalTo(clusterState)));
    clusterState = commandsResult.getClusterState();
    assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(RELOCATING));
    assertThat(clusterState.getRoutingNodes().node("node3").iterator().next().state(), equalTo(INITIALIZING));
    logger.info("--> fail primary shard recovering instance on node1 being relocated");
    clusterState = allocation.applyFailedShard(clusterState, clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next());
    // check promotion of replica to primary
    assertThat(clusterState.getRoutingNodes().node(origReplicaNodeId).iterator().next().state(), equalTo(STARTED));
    assertThat(clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), equalTo(origReplicaNodeId));
    assertThat(clusterState.routingTable().index("test").shard(0).replicaShards().get(0).currentNodeId(), anyOf(equalTo(origPrimaryNodeId), equalTo("node3")));
}

Example 64 with MetaData

use of org.elasticsearch.cluster.metadata.MetaData in project elasticsearch by elastic.

the class FailedShardsRoutingTests method testFailAllReplicasInitializingOnPrimaryFailWhileHavingAReplicaToElect.

public void testFailAllReplicasInitializingOnPrimaryFailWhileHavingAReplicaToElect() {
    AllocationService allocation = createAllocationService(Settings.builder().build());
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(2)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    // add 4 nodes
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3")).add(newNode("node4"))).build();
    clusterState = allocation.reroute(clusterState, "reroute");
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(UNASSIGNED).size(), equalTo(2));
    // start primary shards
    clusterState = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
    // start another replica shard, while keep one initializing
    clusterState = allocation.applyStartedShards(clusterState, Collections.singletonList(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).get(0)));
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(2));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
    // fail the primary shard, check one replica gets elected to primary, others become INITIALIZING (from it)
    ShardRouting primaryShardToFail = clusterState.routingTable().index("test").shard(0).primaryShard();
    ClusterState newState = allocation.applyFailedShard(clusterState, primaryShardToFail);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(1));
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
    ShardRouting newPrimaryShard = clusterState.routingTable().index("test").shard(0).primaryShard();
    assertThat(newPrimaryShard, not(equalTo(primaryShardToFail)));
}

Example 65 with MetaData

use of org.elasticsearch.cluster.metadata.MetaData in project elasticsearch by elastic.

the class FilterAllocationDeciderTests method createInitialClusterState.

private ClusterState createInitialClusterState(AllocationService service, Settings settings) {
    RecoverySource.Type recoveryType = randomFrom(RecoverySource.Type.EMPTY_STORE, RecoverySource.Type.LOCAL_SHARDS, RecoverySource.Type.SNAPSHOT);
    MetaData.Builder metaData = MetaData.builder();
    final Settings.Builder indexSettings = settings(Version.CURRENT).put(settings);
    final IndexMetaData sourceIndex;
    if (recoveryType == RecoverySource.Type.LOCAL_SHARDS) {
        //put a fake closed source index
        sourceIndex = IndexMetaData.builder("sourceIndex").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0).putInSyncAllocationIds(0, Collections.singleton("aid0")).putInSyncAllocationIds(1, Collections.singleton("aid1")).build();
        metaData.put(sourceIndex, false);
        indexSettings.put(INDEX_SHRINK_SOURCE_UUID.getKey(), sourceIndex.getIndexUUID());
        indexSettings.put(INDEX_SHRINK_SOURCE_NAME.getKey(), sourceIndex.getIndex().getName());
    } else {
        sourceIndex = null;
    }
    final IndexMetaData.Builder indexMetaDataBuilder = IndexMetaData.builder("idx").settings(indexSettings).numberOfShards(1).numberOfReplicas(1);
    if (recoveryType == RecoverySource.Type.SNAPSHOT) {
        indexMetaDataBuilder.putInSyncAllocationIds(0, Collections.singleton("_snapshot_restore"));
    }
    final IndexMetaData indexMetaData = indexMetaDataBuilder.build();
    metaData.put(indexMetaData, false);
    RoutingTable.Builder routingTableBuilder = RoutingTable.builder();
    switch(recoveryType) {
        case EMPTY_STORE:
            routingTableBuilder.addAsNew(indexMetaData);
            break;
        case SNAPSHOT:
            routingTableBuilder.addAsRestore(indexMetaData, new RecoverySource.SnapshotRecoverySource(new Snapshot("repository", new SnapshotId("snapshot_name", "snapshot_uuid")), Version.CURRENT, indexMetaData.getIndex().getName()));
            break;
        case LOCAL_SHARDS:
            routingTableBuilder.addAsFromCloseToOpen(sourceIndex);
            routingTableBuilder.addAsNew(indexMetaData);
            break;
        default:
            throw new UnsupportedOperationException(recoveryType + " is not supported");
    }
    RoutingTable routingTable = routingTableBuilder.build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    return service.reroute(clusterState, "reroute", false);
}