Package org.elasticsearch.cluster

Examples of org.elasticsearch.cluster.ClusterState$Custom

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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start two nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        logger.info("start all the primary shards for test1, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        logger.info("start the test1 replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        logger.info("start all the primary shards for test2, replicas will start initializing");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
        }

        logger.info("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to all_active");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
                .put(newNode("node3")))
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node3"), nullValue());
    }
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start 4 nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).put(newNode("node4"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("start all the primary shards, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node4").numberOfShardsWithState(STARTED), equalTo(1));


        logger.info("remove 2 nodes where primaries are allocated, reroute");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
                .remove(routingTable.index("test1").shard(0).primaryShard().currentNodeId())
                .remove(routingTable.index("test2").shard(0).primaryShard().currentNodeId())
        )
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (RoutingNode routingNode : routingNodes) {
            assertThat(routingNode.numberOfShardsWithState(STARTED), equalTo(1));
            assertThat(routingNode.numberOfShardsWithState(INITIALIZING), equalTo(1));
        }
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start 4 nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).put(newNode("node4"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("start all the primary shards, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node4").numberOfShardsWithState(STARTED), equalTo(1));


        logger.info("remove 2 nodes where primaries are allocated, reroute");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
                .remove(routingTable.index("test1").shard(0).primaryShard().currentNodeId())
                .remove(routingTable.index("test2").shard(0).primaryShard().currentNodeId())
        )
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.rerouteWithNoReassign(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (RoutingNode routingNode : routingNodes) {
            assertThat(routingNode.numberOfShardsWithState(STARTED), equalTo(1));
        }
        assertThat(routingNodes.unassigned().size(), equalTo(2));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start 4 nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).put(newNode("node4"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("start all the primary shards, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node4").numberOfShardsWithState(STARTED), equalTo(1));


        logger.info("remove 2 nodes where primaries are allocated, reroute");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
                .remove(routingTable.index("test1").shard(0).primaryShard().currentNodeId())
                .remove(routingTable.index("test2").shard(0).primaryShard().currentNodeId())
        )
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (RoutingNode routingNode : routingNodes) {
            assertThat(routingNode.numberOfShardsWithState(STARTED), equalTo(1));
            assertThat(routingNode.numberOfShardsWithState(INITIALIZING), equalTo(1));
        }
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start 4 nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).put(newNode("node4"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("start all the primary shards, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node4").numberOfShardsWithState(STARTED), equalTo(1));


        logger.info("remove 2 nodes where primaries are allocated, reroute");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
                .remove(routingTable.index("test1").shard(0).primaryShard().currentNodeId())
                .remove(routingTable.index("test2").shard(0).primaryShard().currentNodeId())
        )
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.rerouteWithNoReassign(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (RoutingNode routingNode : routingNodes) {
            assertThat(routingNode.numberOfShardsWithState(STARTED), equalTo(1));
        }
        assertThat(routingNodes.unassigned().size(), equalTo(2));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start two nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test1").shard(i).primaryShard().version(), equalTo(1l));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test2").shard(i).primaryShard().version(), equalTo(1l));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        logger.info("start all the primary shards for test1, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test1").shard(i).primaryShard().version(), equalTo(2l));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        logger.info("start two nodes");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test1").shard(i).primaryShard().version(), equalTo(1l));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
            assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test2").shard(i).primaryShard().version(), equalTo(1l));
            assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
        }

        logger.info("start all the primary shards for test1, replicas will start initializing");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test1").shard(i).primaryShard().version(), equalTo(2l));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test").initializeEmpty(metaData.index("test")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().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 = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();

        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        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("node1"));
        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.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test").initializeEmpty(metaData.index("test")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().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 = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();

        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        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("node1"));
        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.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test").initializeEmpty(metaData.index("test")))
                .build();

        ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();

        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).shards().get(0).state(), equalTo(UNASSIGNED));
            assertThat(routingTable.index("test").shard(i).shards().get(1).state(), equalTo(UNASSIGNED));
            assertThat(routingTable.index("test").shard(i).shards().get(0).currentNodeId(), nullValue());
            assertThat(routingTable.index("test").shard(i).shards().get(1).currentNodeId(), nullValue());
        }

        logger.info("Adding one node and performing rerouting");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1"))).build();

        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node1"));
            assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
            assertThat(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 = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node2"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable == routingTable, equalTo(true));

        logger.info("Start the primary shard (on node1)");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node1"));
            assertThat(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(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), equalTo("node2"));
        }

        logger.info("Reroute, nothing should change");
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        assertThat(prevRoutingTable == routingTable, equalTo(true));

        logger.info("Start the backup shard");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node2").shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
            assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
            assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node1"));
            assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), equalTo("node2"));
        }
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(10));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(10));

        logger.info("Add another node and perform rerouting");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED, RELOCATING), equalTo(10));
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), lessThan(10));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED, RELOCATING), equalTo(10));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), lessThan(10));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(6));

        logger.info("Start the shards on node 3");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node3").shardsWithState(INITIALIZING)).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(10));
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(8));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(6));
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