Examples with RoutingNodes org.elasticsearch.cluster.routing.RoutingNodes used on opensource projects

Example 46 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project crate by crate.

the class AllocationService method applyStartedShards.

/**
 * Applies the started shards. Note, only initializing ShardRouting instances that exist in the routing table should be
 * provided as parameter and no duplicates should be contained.
 * <p>
 * If the same instance of the {@link ClusterState} is returned, then no change has been made.</p>
 */
public ClusterState applyStartedShards(ClusterState clusterState, List<ShardRouting> startedShards) {
    if (startedShards.isEmpty()) {
        return clusterState;
    }
    RoutingNodes routingNodes = getMutableRoutingNodes(clusterState);
    // shuffle the unassigned nodes, just so we won't have things like poison failed shards
    routingNodes.unassigned().shuffle();
    RoutingAllocation allocation = new RoutingAllocation(allocationDeciders, routingNodes, clusterState, clusterInfoService.getClusterInfo(), currentNanoTime());
    // as starting a primary relocation target can reinitialize replica shards, start replicas first
    startedShards = new ArrayList<>(startedShards);
    Collections.sort(startedShards, Comparator.comparing(ShardRouting::primary));
    applyStartedShards(allocation, startedShards);
    gatewayAllocator.applyStartedShards(allocation, startedShards);
    assert RoutingNodes.assertShardStats(allocation.routingNodes());
    String startedShardsAsString = firstListElementsToCommaDelimitedString(startedShards, s -> s.shardId().toString(), LOGGER.isDebugEnabled());
    return buildResultAndLogHealthChange(clusterState, allocation, "shards started [" + startedShardsAsString + "]");
}

Example 47 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project crate by crate.

the class DiskThresholdDeciderTests method testForSingleDataNode.

@Test
public void testForSingleDataNode() {
    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(), "60%").put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING.getKey(), "70%").build();
    ImmutableOpenMap.Builder<String, DiskUsage> usagesBuilder = ImmutableOpenMap.builder();
    // 0% used
    usagesBuilder.put("node1", new DiskUsage("node1", "n1", "/dev/null", 100, 100));
    // 80% used
    usagesBuilder.put("node2", new DiskUsage("node2", "n2", "/dev/null", 100, 20));
    // 0% used
    usagesBuilder.put("node3", new DiskUsage("node3", "n3", "/dev/null", 100, 100));
    ImmutableOpenMap<String, DiskUsage> usages = usagesBuilder.build();
    // We have an index with 1 primary shards each taking 40 bytes. Each node has 100 bytes available
    ImmutableOpenMap.Builder<String, Long> shardSizes = ImmutableOpenMap.builder();
    shardSizes.put("[test][0][p]", 40L);
    shardSizes.put("[test][1][p]", 40L);
    final ClusterInfo clusterInfo = new DevNullClusterInfo(usages, usages, shardSizes.build());
    DiskThresholdDecider diskThresholdDecider = makeDecider(diskSettings);
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(Settings.builder().put(IndexMetadata.SETTING_VERSION_CREATED, Version.CURRENT).put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1).put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0).put(IndexMetadata.SETTING_AUTO_EXPAND_REPLICAS, "false"))).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metadata.index("test")).build();
    logger.info("--> adding one master node, one data node");
    DiscoveryNode discoveryNode1 = new DiscoveryNode("", "node1", buildNewFakeTransportAddress(), emptyMap(), singleton(DiscoveryNodeRole.MASTER_ROLE), Version.CURRENT);
    DiscoveryNode discoveryNode2 = new DiscoveryNode("", "node2", buildNewFakeTransportAddress(), emptyMap(), singleton(DiscoveryNodeRole.DATA_ROLE), Version.CURRENT);
    DiscoveryNodes discoveryNodes = DiscoveryNodes.builder().add(discoveryNode1).add(discoveryNode2).build();
    ClusterState baseClusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(initialRoutingTable).nodes(discoveryNodes).build();
    // Two shards consumes 80% of disk space in data node, but we have only one data node, shards should remain.
    ShardRouting firstRouting = TestShardRouting.newShardRouting("test", 0, "node2", null, true, ShardRoutingState.STARTED);
    ShardRouting secondRouting = TestShardRouting.newShardRouting("test", 1, "node2", null, true, ShardRoutingState.STARTED);
    RoutingNode firstRoutingNode = new RoutingNode("node2", discoveryNode2, firstRouting, secondRouting);
    RoutingTable.Builder builder = RoutingTable.builder().add(IndexRoutingTable.builder(firstRouting.index()).addIndexShard(new IndexShardRoutingTable.Builder(firstRouting.shardId()).addShard(firstRouting).build()).addIndexShard(new IndexShardRoutingTable.Builder(secondRouting.shardId()).addShard(secondRouting).build()));
    ClusterState clusterState = ClusterState.builder(baseClusterState).routingTable(builder.build()).build();
    RoutingAllocation routingAllocation = new RoutingAllocation(null, new RoutingNodes(clusterState), clusterState, clusterInfo, System.nanoTime());
    routingAllocation.debugDecision(true);
    Decision decision = diskThresholdDecider.canRemain(firstRouting, firstRoutingNode, routingAllocation);
    // Two shards should start happily
    assertThat(decision.type(), equalTo(Decision.Type.YES));
    assertThat(decision.getExplanation(), containsString("there is only a single data node present"));
    ClusterInfoService cis = () -> {
        logger.info("--> calling fake getClusterInfo");
        return clusterInfo;
    };
    AllocationDeciders deciders = new AllocationDeciders(new HashSet<>(Arrays.asList(new SameShardAllocationDecider(Settings.EMPTY, new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS)), diskThresholdDecider)));
    AllocationService strategy = new AllocationService(deciders, new TestGatewayAllocator(), new BalancedShardsAllocator(Settings.EMPTY), cis);
    ClusterState result = strategy.reroute(clusterState, "reroute");
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().state(), equalTo(STARTED));
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().currentNodeId(), equalTo("node2"));
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().relocatingNodeId(), nullValue());
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().state(), equalTo(STARTED));
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().currentNodeId(), equalTo("node2"));
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().relocatingNodeId(), nullValue());
    // Add another datanode, it should relocate.
    logger.info("--> adding node3");
    DiscoveryNode discoveryNode3 = new DiscoveryNode("", "node3", buildNewFakeTransportAddress(), emptyMap(), singleton(DiscoveryNodeRole.DATA_ROLE), Version.CURRENT);
    ClusterState updateClusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(discoveryNode3)).build();
    firstRouting = TestShardRouting.newShardRouting("test", 0, "node2", null, true, ShardRoutingState.STARTED);
    secondRouting = TestShardRouting.newShardRouting("test", 1, "node2", "node3", true, ShardRoutingState.RELOCATING);
    firstRoutingNode = new RoutingNode("node2", discoveryNode2, firstRouting, secondRouting);
    builder = RoutingTable.builder().add(IndexRoutingTable.builder(firstRouting.index()).addIndexShard(new IndexShardRoutingTable.Builder(firstRouting.shardId()).addShard(firstRouting).build()).addIndexShard(new IndexShardRoutingTable.Builder(secondRouting.shardId()).addShard(secondRouting).build()));
    clusterState = ClusterState.builder(updateClusterState).routingTable(builder.build()).build();
    routingAllocation = new RoutingAllocation(null, new RoutingNodes(clusterState), clusterState, clusterInfo, System.nanoTime());
    routingAllocation.debugDecision(true);
    decision = diskThresholdDecider.canRemain(firstRouting, firstRoutingNode, routingAllocation);
    assertThat(decision.type(), equalTo(Decision.Type.YES));
    assertThat(decision.getExplanation(), containsString("there is enough disk on this node for the shard to remain, free: [60b]"));
    result = strategy.reroute(clusterState, "reroute");
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().state(), equalTo(STARTED));
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().currentNodeId(), equalTo("node2"));
    assertThat(result.routingTable().index("test").getShards().get(0).primaryShard().relocatingNodeId(), nullValue());
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().state(), equalTo(RELOCATING));
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().currentNodeId(), equalTo("node2"));
    assertThat(result.routingTable().index("test").getShards().get(1).primaryShard().relocatingNodeId(), equalTo("node3"));
}

Example 48 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project crate by crate.

the class AllocationCommandsTests method testMoveShardToNonDataNode.

@Test
public void testMoveShardToNonDataNode() {
    AllocationService allocation = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).build());
    logger.info("creating an index with 1 shard, no replica");
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(0)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metadata.index("test")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(routingTable).build();
    logger.info("--> adding two nodes");
    DiscoveryNode node1 = new DiscoveryNode("node1", "node1", "node1", "test1", "test1", buildNewFakeTransportAddress(), emptyMap(), MASTER_DATA_ROLES, Version.CURRENT);
    DiscoveryNode node2 = new DiscoveryNode("node2", "node2", "node2", "test2", "test2", buildNewFakeTransportAddress(), emptyMap(), Set.of(DiscoveryNodeRole.MASTER_ROLE), Version.CURRENT);
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(node1).add(node2)).build();
    logger.info("start primary shard");
    clusterState = startInitializingShardsAndReroute(allocation, clusterState);
    Index index = clusterState.getMetadata().index("test").getIndex();
    MoveAllocationCommand command = new MoveAllocationCommand(index.getName(), 0, "node1", "node2");
    RoutingAllocation routingAllocation = new RoutingAllocation(new AllocationDeciders(Collections.emptyList()), new RoutingNodes(clusterState, false), clusterState, ClusterInfo.EMPTY, System.nanoTime());
    logger.info("--> executing move allocation command to non-data node");
    IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> command.execute(routingAllocation, false));
    assertEquals("[move_allocation] can't move [test][0] from " + node1 + " to " + node2 + ": source [" + node2.getName() + "] is not a data node.", e.getMessage());
}

Example 49 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project crate by crate.

the class AllocationCommandsTests method testMoveShardFromNonDataNode.

@Test
public void testMoveShardFromNonDataNode() {
    AllocationService allocation = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).build());
    logger.info("creating an index with 1 shard, no replica");
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(0)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metadata.index("test")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(routingTable).build();
    logger.info("--> adding two nodes");
    DiscoveryNode node1 = new DiscoveryNode("node1", "node1", "node1", "test1", "test1", buildNewFakeTransportAddress(), emptyMap(), MASTER_DATA_ROLES, Version.CURRENT);
    DiscoveryNode node2 = new DiscoveryNode("node2", "node2", "node2", "test2", "test2", buildNewFakeTransportAddress(), emptyMap(), Set.of(DiscoveryNodeRole.MASTER_ROLE), Version.CURRENT);
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(node1).add(node2)).build();
    logger.info("start primary shard");
    clusterState = startInitializingShardsAndReroute(allocation, clusterState);
    Index index = clusterState.getMetadata().index("test").getIndex();
    MoveAllocationCommand command = new MoveAllocationCommand(index.getName(), 0, "node2", "node1");
    RoutingAllocation routingAllocation = new RoutingAllocation(new AllocationDeciders(Collections.emptyList()), new RoutingNodes(clusterState, false), clusterState, ClusterInfo.EMPTY, System.nanoTime());
    logger.info("--> executing move allocation command from non-data node");
    IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> command.execute(routingAllocation, false));
    assertEquals("[move_allocation] can't move [test][0] from " + node2 + " to " + node1 + ": source [" + node2.getName() + "] is not a data node.", e.getMessage());
}

Example 50 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project crate by crate.

the class IndexBalanceTests method testBalanceIncrementallyStartNodes.

public void testBalanceIncrementallyStartNodes() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put("cluster.routing.allocation.node_initial_primaries_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").put("cluster.routing.allocation.cluster_concurrent_rebalance", -1).build());
    logger.info("Building initial routing table");
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(indexSettings()).numberOfShards(3).numberOfReplicas(1)).put(IndexMetadata.builder("test1").settings(indexSettings()).numberOfShards(3).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metadata.index("test")).addAsNew(metadata.index("test1")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(initialRoutingTable).build();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    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).shards().get(0).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(1).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(0).currentNodeId(), nullValue());
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(1).currentNodeId(), nullValue());
    }
    assertThat(clusterState.routingTable().index("test1").shards().size(), equalTo(3));
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().get(0).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().get(1).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().get(0).currentNodeId(), nullValue());
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().get(1).currentNodeId(), nullValue());
    }
    logger.info("Adding one node and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1"))).build();
    ClusterState newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    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(INITIALIZING));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).currentNodeId(), nullValue());
    }
    logger.info("Add another node and perform rerouting, nothing will happen since primary not started");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node2"))).build();
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the primary shard");
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    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).replicaShards().size(), equalTo(1));
        // backup shards are initializing as well, we make sure that they
        // recover from primary *started* shards in the
        // IndicesClusterStateService
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
    }
    logger.info("Reroute, nothing should change");
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the backup shard");
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    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).replicaShards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
    }
    assertThat(clusterState.routingTable().index("test1").shards().size(), equalTo(3));
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
    }
    logger.info("Add another node and perform rerouting, nothing will happen since primary not started");
    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;
    logger.info("Reroute, nothing should change");
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the backup shard");
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().index("test1").shards().size(), equalTo(3));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node1").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node2").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node3").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node1").shardsWithState("test1", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node2").shardsWithState("test1", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node3").shardsWithState("test1", STARTED).size(), equalTo(2));
}