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

Example 96 with MetaData

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

the class DiskThresholdDeciderTests method testShardRelocationsTakenIntoAccount.

public void testShardRelocationsTakenIntoAccount() {
    Settings diskSettings = Settings.builder().put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_DISK_THRESHOLD_ENABLED_SETTING.getKey(), true).put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_INCLUDE_RELOCATIONS_SETTING.getKey(), true).put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_LOW_DISK_WATERMARK_SETTING.getKey(), 0.7).put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING.getKey(), 0.8).build();
    ImmutableOpenMap.Builder<String, DiskUsage> usagesBuilder = ImmutableOpenMap.builder();
    // 60% used
    usagesBuilder.put("node1", new DiskUsage("node1", "n1", "/dev/null", 100, 40));
    // 60% used
    usagesBuilder.put("node2", new DiskUsage("node2", "n2", "/dev/null", 100, 40));
    // 60% used
    usagesBuilder.put("node3", new DiskUsage("node3", "n3", "/dev/null", 100, 40));
    ImmutableOpenMap<String, DiskUsage> usages = usagesBuilder.build();
    ImmutableOpenMap.Builder<String, Long> shardSizesBuilder = ImmutableOpenMap.builder();
    // 14 bytes
    shardSizesBuilder.put("[test][0][p]", 14L);
    shardSizesBuilder.put("[test][0][r]", 14L);
    // 1 bytes
    shardSizesBuilder.put("[test2][0][p]", 1L);
    shardSizesBuilder.put("[test2][0][r]", 1L);
    ImmutableOpenMap<String, Long> shardSizes = shardSizesBuilder.build();
    final ClusterInfo clusterInfo = new DevNullClusterInfo(usages, usages, shardSizes);
    DiskThresholdDecider decider = makeDecider(diskSettings);
    AllocationDeciders deciders = new AllocationDeciders(Settings.EMPTY, new HashSet<>(Arrays.asList(new SameShardAllocationDecider(Settings.EMPTY, new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS)), decider)));
    ClusterInfoService cis = new ClusterInfoService() {

        @Override
        public ClusterInfo getClusterInfo() {
            logger.info("--> calling fake getClusterInfo");
            return clusterInfo;
        }

        @Override
        public void addListener(Listener listener) {
        // noop
        }
    };
    AllocationService strategy = new AllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").put("cluster.routing.allocation.cluster_concurrent_rebalance", -1).build(), deciders, new TestGatewayAllocator(), new BalancedShardsAllocator(Settings.EMPTY), cis);
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test")).addAsNew(metaData.index("test2")).build();
    ClusterState clusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("--> adding two nodes");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logShardStates(clusterState);
    // shards should be initializing
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(4));
    logger.info("--> start the shards");
    clusterState = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    logShardStates(clusterState);
    // Assert that we're able to start the primary and replicas
    assertThat(clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(4));
    logger.info("--> adding node3");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    AllocationCommand relocate1 = new MoveAllocationCommand("test", 0, "node2", "node3");
    AllocationCommands cmds = new AllocationCommands(relocate1);
    clusterState = strategy.reroute(clusterState, cmds, false, false).getClusterState();
    logShardStates(clusterState);
    AllocationCommand relocate2 = new MoveAllocationCommand("test2", 0, "node2", "node3");
    cmds = new AllocationCommands(relocate2);
    try {
        // The shard for the "test" index is already being relocated to
        // node3, which will put it over the low watermark when it
        // completes, with shard relocations taken into account this should
        // throw an exception about not being able to complete
        strategy.reroute(clusterState, cmds, false, false);
        fail("should not have been able to reroute the shard");
    } catch (IllegalArgumentException e) {
        assertThat("can't be allocated because there isn't enough room: " + e.getMessage(), e.getMessage(), containsString("the node is above the low watermark cluster setting " + "[cluster.routing.allocation.disk.watermark.low=0.7], using more disk space than the maximum " + "allowed [70.0%], actual free: [26.0%]"));
    }
}

Example 97 with MetaData

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

the class FailedShardsRoutingTests method testRebalanceFailure.

public void testRebalanceFailure() {
    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");
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(1)).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 two nodes and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Start the shards (primaries)");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    ClusterState newState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(2));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
    }
    logger.info("Start the shards (backups)");
    routingNodes = clusterState.getRoutingNodes();
    newState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(2));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
    }
    logger.info("Adding third node and reroute");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(2));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), lessThan(3));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), lessThan(3));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
    logger.info("Fail the shards on node 3");
    ShardRouting shardToFail = routingNodes.node("node3").iterator().next();
    newState = strategy.applyFailedShard(clusterState, shardToFail);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(2));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), lessThan(3));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), lessThan(3));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
    // make sure the failedShard is not INITIALIZING again on node3
    assertThat(routingNodes.node("node3").iterator().next().shardId(), not(equalTo(shardToFail.shardId())));
}

Example 98 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 99 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 100 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")));
}