Package org.elasticsearch.cluster

Examples of org.elasticsearch.cluster.ClusterState.routingTable()

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        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");
        rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
                        new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
        );
        assertThat(rerouteResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(RELOCATING));
        assertThat(clusterState.routingNodes().node("node3").get(0).state(), equalTo(INITIALIZING));
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        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");
        rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
                        new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
        );
        assertThat(rerouteResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(RELOCATING));
        assertThat(clusterState.routingNodes().node("node3").get(0).state(), equalTo(INITIALIZING));
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        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingNodes().node("node3").size(), equalTo(0));

        logger.info("--> moving primary shard to node3");
        rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
                        new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
        );
        assertThat(rerouteResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(RELOCATING));
        assertThat(clusterState.routingNodes().node("node3").get(0).state(), equalTo(INITIALIZING));
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        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingNodes().node("node3").size(), equalTo(0));

        logger.info("--> moving primary shard to node3");
        rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
                        new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
        );
        assertThat(rerouteResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node(origPrimaryNodeId).get(0).state(), equalTo(RELOCATING));
        assertThat(clusterState.routingNodes().node("node3").get(0).state(), equalTo(INITIALIZING));
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        rerouteResult = allocation.applyFailedShard(clusterState, new ImmutableShardRouting(clusterState.routingNodes().node(origPrimaryNodeId).get(0)));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();

        // check promotion of replica to primary
        assertThat(clusterState.routingNodes().node(origReplicaNodeId).get(0).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")));
    }

    @Test
    public void failPrimaryStartedCheckReplicaElected() {
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        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();

        // check promotion of replica to primary
        assertThat(clusterState.routingNodes().node(origReplicaNodeId).get(0).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")));
    }

    @Test
    public void failPrimaryStartedCheckReplicaElected() {
        AllocationService strategy = createAllocationService(settingsBuilder()
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        DiscoveryNodes.Builder nodeBuilder = DiscoveryNodes.builder();
        for (int i = 0; i < numberOfReplicas + 1; i++) {
            nodeBuilder.put(newNode("node" + Integer.toString(i)));
        }
        clusterState = ClusterState.builder(clusterState).nodes(nodeBuilder).build();
        while (!clusterState.routingTable().shardsWithState(UNASSIGNED).isEmpty()) {
            // start all initializing
            clusterState = ClusterState.builder(clusterState)
                    .routingTable(strategy
                                    .applyStartedShards(clusterState, clusterState.routingTable().shardsWithState(INITIALIZING)).routingTable()
                    )
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        clusterState = ClusterState.builder(clusterState).nodes(nodeBuilder).build();
        while (!clusterState.routingTable().shardsWithState(UNASSIGNED).isEmpty()) {
            // start all initializing
            clusterState = ClusterState.builder(clusterState)
                    .routingTable(strategy
                                    .applyStartedShards(clusterState, clusterState.routingTable().shardsWithState(INITIALIZING)).routingTable()
                    )
                    .build();
            // and assign more unassigned
            clusterState = ClusterState.builder(clusterState).routingTable(strategy.reroute(clusterState).routingTable()).build();
        }
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        assertThat(clusterState.routingNodes().node("node1").get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").get(0).state(), equalTo(STARTED));

        logger.info("--> fail node with primary");
        String nodeIdToFail = clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId();
        String nodeIdRemaining = nodeIdToFail.equals("node1") ? "node2" : "node1";
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
                .put(newNode(nodeIdRemaining))
        ).build();
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        assertThat(clusterState.routingNodes().node("node1").get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").get(0).state(), equalTo(STARTED));
        assertThat(clusterState.routingNodes().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");
        rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
                new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
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