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

Example 31 with RoutingNodes

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

the class ReplicaAllocatedAfterPrimaryTests method testBackupIsAllocatedAfterPrimary.

public void testBackupIsAllocatedAfterPrimary() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).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(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    assertThat(routingTable.index("test").shards().size(), equalTo(1));
    assertThat(routingTable.index("test").shard(0).size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(UNASSIGNED));
    assertThat(routingTable.index("test").shard(0).shards().get(1).state(), equalTo(UNASSIGNED));
    assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), nullValue());
    assertThat(routingTable.index("test").shard(0).shards().get(1).currentNodeId(), nullValue());
    logger.info("Adding one node and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    RoutingTable prevRoutingTable = routingTable;
    routingTable = strategy.reroute(clusterState, "reroute").routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    final String nodeHoldingPrimary = routingTable.index("test").shard(0).primaryShard().currentNodeId();
    assertThat(prevRoutingTable != routingTable, equalTo(true));
    assertThat(routingTable.index("test").shards().size(), equalTo(1));
    assertThat(routingTable.index("test").shard(0).size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).primaryShard().state(), equalTo(INITIALIZING));
    assertThat(routingTable.index("test").shard(0).primaryShard().currentNodeId(), equalTo(nodeHoldingPrimary));
    assertThat(routingTable.index("test").shard(0).replicaShards().size(), equalTo(1));
    assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), nullValue());
    logger.info("Start all the primary shards");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    prevRoutingTable = routingTable;
    routingTable = strategy.applyStartedShards(clusterState, routingNodes.node(nodeHoldingPrimary).shardsWithState(INITIALIZING)).routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    final String nodeHoldingReplica = routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId();
    assertThat(nodeHoldingPrimary, not(equalTo(nodeHoldingReplica)));
    assertThat(prevRoutingTable != routingTable, equalTo(true));
    assertThat(routingTable.index("test").shards().size(), equalTo(1));
    assertThat(routingTable.index("test").shard(0).size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(2));
    assertThat(routingTable.index("test").shard(0).primaryShard().state(), equalTo(STARTED));
    assertThat(routingTable.index("test").shard(0).primaryShard().currentNodeId(), equalTo(nodeHoldingPrimary));
    assertThat(routingTable.index("test").shard(0).replicaShards().size(), equalTo(1));
    assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(INITIALIZING));
    assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo(nodeHoldingReplica));
}

Example 32 with RoutingNodes

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

the class RoutingNodesIntegrityTests method testBalanceAllNodesStartedAddIndex.

public void testBalanceAllNodesStartedAddIndex() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 1).put("cluster.routing.allocation.node_initial_primaries_recoveries", 3).put(ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_OUTGOING_RECOVERIES_SETTING.getKey(), 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(settings(Version.CURRENT)).numberOfShards(3).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("Adding three node and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3"))).build();
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Another round of rebalancing");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
    ClusterState newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(routingNodes.node("node1").numberOfShardsWithState(INITIALIZING), equalTo(1));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), equalTo(1));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));
    logger.info("Reroute, nothing should change");
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the more shards");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(2));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(2));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(2));
    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));
    logger.info("Add new index 3 shards 1 replica");
    metaData = MetaData.builder(clusterState.metaData()).put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT).put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 3).put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1))).build();
    RoutingTable updatedRoutingTable = RoutingTable.builder(clusterState.routingTable()).addAsNew(metaData.index("test1")).build();
    clusterState = ClusterState.builder(clusterState).metaData(metaData).routingTable(updatedRoutingTable).build();
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));
    assertThat(clusterState.routingTable().index("test1").shards().size(), equalTo(3));
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Reroute, assign");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
    newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Reroute, start the primaries");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Reroute, start the replicas");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    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("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));
    logger.info("kill one node");
    IndexShardRoutingTable indexShardRoutingTable = clusterState.routingTable().index("test").shard(0);
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).remove(indexShardRoutingTable.primaryShard().currentNodeId())).build();
    clusterState = strategy.deassociateDeadNodes(clusterState, true, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    // replica got promoted to primary
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Start Recovering shards round 1");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Start Recovering shards round 2");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
}

Example 33 with RoutingNodes

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

the class ElectReplicaAsPrimaryDuringRelocationTests method testElectReplicaAsPrimaryDuringRelocation.

public void testElectReplicaAsPrimaryDuringRelocation() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).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(org.elasticsearch.cluster.ClusterName.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 primary shards");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    logger.info("Start the replica shards");
    routingNodes = clusterState.getRoutingNodes();
    ClusterState resultingState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    assertThat(resultingState, not(equalTo(clusterState)));
    clusterState = resultingState;
    routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(2));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(2));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(2));
    logger.info("Start another node and perform rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("find the replica shard that gets relocated");
    IndexShardRoutingTable indexShardRoutingTable = null;
    if (clusterState.routingTable().index("test").shard(0).replicaShards().get(0).relocating()) {
        indexShardRoutingTable = clusterState.routingTable().index("test").shard(0);
    } else if (clusterState.routingTable().index("test").shard(1).replicaShards().get(0).relocating()) {
        indexShardRoutingTable = clusterState.routingTable().index("test").shard(1);
    }
    // we might have primary relocating, and the test is only for replicas, so only test in the case of replica allocation
    if (indexShardRoutingTable != null) {
        logger.info("kill the node [{}] of the primary shard for the relocating replica", indexShardRoutingTable.primaryShard().currentNodeId());
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).remove(indexShardRoutingTable.primaryShard().currentNodeId())).build();
        clusterState = strategy.deassociateDeadNodes(clusterState, true, "reroute");
        logger.info("make sure all the primary shards are active");
        assertThat(clusterState.routingTable().index("test").shard(0).primaryShard().active(), equalTo(true));
        assertThat(clusterState.routingTable().index("test").shard(1).primaryShard().active(), equalTo(true));
    }
}

Example 34 with RoutingNodes

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

the class DiskThresholdDeciderTests method testForSingleDataNode.

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(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0)).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(DiscoveryNode.Role.MASTER), Version.CURRENT);
    DiscoveryNode discoveryNode2 = new DiscoveryNode("", "node2", buildNewFakeTransportAddress(), emptyMap(), singleton(DiscoveryNode.Role.DATA), 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(), false);
    routingAllocation.debugDecision(true);
    Decision decision = diskThresholdDecider.canRemain(firstRouting, firstRoutingNode, routingAllocation);
    // Two shards should start happily
    assertThat(decision.type(), equalTo(Decision.Type.YES));
    assertThat(((Decision.Single) decision).getExplanation(), containsString("there is only a single data node present"));
    ClusterInfoService cis = new ClusterInfoService() {

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

        @Override
        public void addListener(Listener listener) {
        }
    };
    AllocationDeciders deciders = new AllocationDeciders(Settings.EMPTY, new HashSet<>(Arrays.asList(new SameShardAllocationDecider(Settings.EMPTY, new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS)), diskThresholdDecider)));
    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);
    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(DiscoveryNode.Role.DATA), 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(), false);
    routingAllocation.debugDecision(true);
    decision = diskThresholdDecider.canRemain(firstRouting, firstRoutingNode, routingAllocation);
    assertThat(decision.type(), equalTo(Decision.Type.YES));
    assertThat(((Decision.Single) 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 35 with RoutingNodes

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

the class RoutingNodesIntegrityTests method testBalanceAllNodesStarted.

public void testBalanceAllNodesStarted() {
    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(settings(Version.CURRENT)).numberOfShards(3).numberOfReplicas(1)).put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).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();
    logger.info("Adding three node and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2")).add(newNode("node3"))).build();
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    // all shards are unassigned. so no inactive shards or primaries.
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(true));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    logger.info("Another round of rebalancing");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    logger.info("Reroute, nothing should change");
    ClusterState newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the more shards");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(assertShardStats(routingNodes), equalTo(true));
    assertThat(routingNodes.hasInactiveShards(), equalTo(false));
    assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
    assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
}