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

Example 56 with RoutingTable

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

the class NodeVersionAllocationDeciderTests method testRandom.

public void testRandom() {
    AllocationService service = createAllocationService(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());
    logger.info("Building initial routing table");
    MetaData.Builder builder = MetaData.builder();
    RoutingTable.Builder rtBuilder = RoutingTable.builder();
    int numIndices = between(1, 20);
    for (int i = 0; i < numIndices; i++) {
        builder.put(IndexMetaData.builder("test_" + i).settings(settings(Version.CURRENT)).numberOfShards(between(1, 5)).numberOfReplicas(between(0, 2)));
    }
    MetaData metaData = builder.build();
    for (int i = 0; i < numIndices; i++) {
        rtBuilder.addAsNew(metaData.index("test_" + i));
    }
    RoutingTable routingTable = rtBuilder.build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    assertThat(routingTable.shardsWithState(UNASSIGNED).size(), equalTo(routingTable.allShards().size()));
    List<DiscoveryNode> nodes = new ArrayList<>();
    int nodeIdx = 0;
    int iters = scaledRandomIntBetween(10, 100);
    for (int i = 0; i < iters; i++) {
        DiscoveryNodes.Builder nodesBuilder = DiscoveryNodes.builder();
        int numNodes = between(1, 20);
        if (nodes.size() > numNodes) {
            shuffle(nodes, random());
            nodes = nodes.subList(0, numNodes);
        } else {
            for (int j = nodes.size(); j < numNodes; j++) {
                if (frequently()) {
                    nodes.add(newNode("node" + (nodeIdx++), randomBoolean() ? VersionUtils.getPreviousVersion() : Version.CURRENT));
                } else {
                    nodes.add(newNode("node" + (nodeIdx++), randomVersion(random())));
                }
            }
        }
        for (DiscoveryNode node : nodes) {
            nodesBuilder.add(node);
        }
        clusterState = ClusterState.builder(clusterState).nodes(nodesBuilder).build();
        clusterState = stabilize(clusterState, service);
    }
}

Example 57 with RoutingTable

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

the class NodeVersionAllocationDeciderTests method testRebalanceDoesNotAllocatePrimaryAndReplicasOnDifferentVersionNodes.

public void testRebalanceDoesNotAllocatePrimaryAndReplicasOnDifferentVersionNodes() {
    ShardId shard1 = new ShardId("test1", "_na_", 0);
    ShardId shard2 = new ShardId("test2", "_na_", 0);
    final DiscoveryNode newNode = new DiscoveryNode("newNode", buildNewFakeTransportAddress(), emptyMap(), MASTER_DATA_ROLES, Version.CURRENT);
    final DiscoveryNode oldNode1 = new DiscoveryNode("oldNode1", buildNewFakeTransportAddress(), emptyMap(), MASTER_DATA_ROLES, VersionUtils.getPreviousVersion());
    final DiscoveryNode oldNode2 = new DiscoveryNode("oldNode2", buildNewFakeTransportAddress(), emptyMap(), MASTER_DATA_ROLES, VersionUtils.getPreviousVersion());
    AllocationId allocationId1P = AllocationId.newInitializing();
    AllocationId allocationId1R = AllocationId.newInitializing();
    AllocationId allocationId2P = AllocationId.newInitializing();
    AllocationId allocationId2R = AllocationId.newInitializing();
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder(shard1.getIndexName()).settings(settings(Version.CURRENT).put(Settings.EMPTY)).numberOfShards(1).numberOfReplicas(1).putInSyncAllocationIds(0, Sets.newHashSet(allocationId1P.getId(), allocationId1R.getId()))).put(IndexMetaData.builder(shard2.getIndexName()).settings(settings(Version.CURRENT).put(Settings.EMPTY)).numberOfShards(1).numberOfReplicas(1).putInSyncAllocationIds(0, Sets.newHashSet(allocationId2P.getId(), allocationId2R.getId()))).build();
    RoutingTable routingTable = RoutingTable.builder().add(IndexRoutingTable.builder(shard1.getIndex()).addIndexShard(new IndexShardRoutingTable.Builder(shard1).addShard(TestShardRouting.newShardRouting(shard1.getIndexName(), shard1.getId(), newNode.getId(), null, true, ShardRoutingState.STARTED, allocationId1P)).addShard(TestShardRouting.newShardRouting(shard1.getIndexName(), shard1.getId(), oldNode1.getId(), null, false, ShardRoutingState.STARTED, allocationId1R)).build())).add(IndexRoutingTable.builder(shard2.getIndex()).addIndexShard(new IndexShardRoutingTable.Builder(shard2).addShard(TestShardRouting.newShardRouting(shard2.getIndexName(), shard2.getId(), newNode.getId(), null, true, ShardRoutingState.STARTED, allocationId2P)).addShard(TestShardRouting.newShardRouting(shard2.getIndexName(), shard2.getId(), oldNode1.getId(), null, false, ShardRoutingState.STARTED, allocationId2R)).build())).build();
    ClusterState state = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).nodes(DiscoveryNodes.builder().add(newNode).add(oldNode1).add(oldNode2)).build();
    AllocationDeciders allocationDeciders = new AllocationDeciders(Settings.EMPTY, Collections.singleton(new NodeVersionAllocationDecider(Settings.EMPTY)));
    AllocationService strategy = new MockAllocationService(Settings.EMPTY, allocationDeciders, new TestGatewayAllocator(), new BalancedShardsAllocator(Settings.EMPTY), EmptyClusterInfoService.INSTANCE);
    state = strategy.reroute(state, new AllocationCommands(), true, false).getClusterState();
    // the two indices must stay as is, the replicas cannot move to oldNode2 because versions don't match
    assertThat(state.routingTable().index(shard2.getIndex()).shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(0));
    assertThat(state.routingTable().index(shard1.getIndex()).shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(0));
}

Example 58 with RoutingTable

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

the class PreferPrimaryAllocationTests method testPreferPrimaryAllocationOverReplicas.

public void testPreferPrimaryAllocationOverReplicas() {
    logger.info("create an allocation with 1 initial recoveries");
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 1).put(ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_OUTGOING_RECOVERIES_SETTING.getKey(), 10).put("cluster.routing.allocation.node_initial_primaries_recoveries", 1).build());
    logger.info("create several indices with no replicas, and wait till all are allocated");
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(10).numberOfReplicas(0)).put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(10).numberOfReplicas(0)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test1")).addAsNew(metaData.index("test2")).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 till all are allocated");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    while (!clusterState.getRoutingNodes().shardsWithState(INITIALIZING).isEmpty()) {
        clusterState = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    }
    logger.info("increasing the number of replicas to 1, and perform a reroute (to get the replicas allocation going)");
    RoutingTable updatedRoutingTable = RoutingTable.builder(clusterState.routingTable()).updateNumberOfReplicas(1).build();
    metaData = MetaData.builder(clusterState.metaData()).updateNumberOfReplicas(1).build();
    clusterState = ClusterState.builder(clusterState).routingTable(updatedRoutingTable).metaData(metaData).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("2 replicas should be initializing now for the existing indices (we throttle to 1)");
    assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
    logger.info("create a new index");
    metaData = MetaData.builder(clusterState.metaData()).put(IndexMetaData.builder("new_index").settings(settings(Version.CURRENT)).numberOfShards(4).numberOfReplicas(0)).build();
    updatedRoutingTable = RoutingTable.builder(clusterState.routingTable()).addAsNew(metaData.index("new_index")).build();
    clusterState = ClusterState.builder(clusterState).metaData(metaData).routingTable(updatedRoutingTable).build();
    logger.info("reroute, verify that primaries for the new index primary shards are allocated");
    clusterState = strategy.reroute(clusterState, "reroute");
    assertThat(clusterState.routingTable().index("new_index").shardsWithState(INITIALIZING).size(), equalTo(2));
}

Example 59 with RoutingTable

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

the class PrimaryElectionRoutingTests method testBackupElectionToPrimaryWhenPrimaryCanBeAllocatedToAnotherNode.

public void testBackupElectionToPrimaryWhenPrimaryCanBeAllocatedToAnotherNode() {
    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();
    logger.info("Adding two nodes and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Start the primary shard (on node1)");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING));
    logger.info("Start the backup shard (on node2)");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.node("node2").shardsWithState(INITIALIZING));
    logger.info("Adding third node and reroute and kill first node");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3")).remove("node1")).build();
    RoutingTable prevRoutingTable = clusterState.routingTable();
    clusterState = strategy.deassociateDeadNodes(clusterState, true, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    routingTable = clusterState.routingTable();
    assertThat(prevRoutingTable != routingTable, equalTo(true));
    assertThat(routingTable.index("test").shards().size(), equalTo(1));
    assertThat(routingNodes.node("node1"), nullValue());
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
    // verify where the primary is
    assertThat(routingTable.index("test").shard(0).primaryShard().currentNodeId(), equalTo("node2"));
    assertThat(clusterState.metaData().index("test").primaryTerm(0), equalTo(2L));
    assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node3"));
}

Example 60 with RoutingTable

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

the class RebalanceAfterActiveTests method testRebalanceOnlyAfterAllShardsAreActive.

public void testRebalanceOnlyAfterAllShardsAreActive() {
    final long[] sizes = new long[5];
    for (int i = 0; i < sizes.length; i++) {
        sizes[i] = randomIntBetween(0, Integer.MAX_VALUE);
    }
    AllocationService strategy = createAllocationService(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(), new ClusterInfoService() {

        @Override
        public ClusterInfo getClusterInfo() {
            return new ClusterInfo() {

                @Override
                public Long getShardSize(ShardRouting shardRouting) {
                    if (shardRouting.getIndexName().equals("test")) {
                        return sizes[shardRouting.getId()];
                    }
                    return null;
                }
            };
        }

        @Override
        public void addListener(Listener listener) {
        }
    });
    logger.info("Building initial routing table");
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(5).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();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(5));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        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());
    }
    logger.info("start two nodes and fully start the shards");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        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().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("start all the primary shards, replicas will start initializing");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        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().get(0).state(), equalTo(INITIALIZING));
        assertEquals(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).getExpectedShardSize(), sizes[i]);
    }
    logger.info("now, start 8 more nodes, and check that no rebalancing/relocation have happened");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3")).add(newNode("node4")).add(newNode("node5")).add(newNode("node6")).add(newNode("node7")).add(newNode("node8")).add(newNode("node9")).add(newNode("node10"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        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().get(0).state(), equalTo(INITIALIZING));
        assertEquals(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).getExpectedShardSize(), sizes[i]);
    }
    logger.info("start the replica shards, rebalancing should start");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    // we only allow one relocation at a time
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(5));
    assertThat(clusterState.routingTable().shardsWithState(RELOCATING).size(), equalTo(5));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        int num = 0;
        for (ShardRouting routing : clusterState.routingTable().index("test").shard(i).shards()) {
            if (routing.state() == RELOCATING || routing.state() == INITIALIZING) {
                assertEquals(routing.getExpectedShardSize(), sizes[i]);
                num++;
            }
        }
        assertTrue(num > 0);
    }
    logger.info("complete relocation, other half of relocation should happen");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    // we now only relocate 3, since 2 remain where they are!
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(7));
    assertThat(clusterState.routingTable().shardsWithState(RELOCATING).size(), equalTo(3));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        for (ShardRouting routing : clusterState.routingTable().index("test").shard(i).shards()) {
            if (routing.state() == RELOCATING || routing.state() == INITIALIZING) {
                assertEquals(routing.getExpectedShardSize(), sizes[i]);
            }
        }
    }
    logger.info("complete relocation, that's it!");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(10));
    // make sure we have an even relocation
    for (RoutingNode routingNode : routingNodes) {
        assertThat(routingNode.size(), equalTo(1));
    }
}