Package org.elasticsearch.cluster.routing

Examples of org.elasticsearch.cluster.routing.RoutingNodes

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        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().put(newNode("node1"))).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(5));

        logger.info("start another node, replica will start recovering form primary");
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        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        logger.info("Start all the primary shards");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        logger.info("Start all the replica shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        final String nodeHoldingPrimary = routingTable.index("test").shard(0).primaryShard().currentNodeId();
        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(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo(nodeHoldingReplica));


        logger.info("add another replica");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = RoutingTable.builder(routingTable).updateNumberOfReplicas(2).build();
        metaData = MetaData.builder(clusterState.metaData()).updateNumberOfReplicas(2).build();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).metaData(metaData).build();

        assertThat(clusterState.metaData().index("test").numberOfReplicas(), equalTo(2));

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).size(), equalTo(3));
        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(2));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo(nodeHoldingReplica));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(1).state(), equalTo(UNASSIGNED));

        logger.info("Add another node and start the added replica");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(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(3));
        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(2));
        assertThat(routingTable.index("test").shard(0).replicaShardsWithState(STARTED).size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).replicaShardsWithState(STARTED).get(0).currentNodeId(), equalTo(nodeHoldingReplica));
        assertThat(routingTable.index("test").shard(0).replicaShardsWithState(INITIALIZING).size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).replicaShardsWithState(INITIALIZING).get(0).currentNodeId(), equalTo("node3"));

        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(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(3));
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        nodes.put(newNode("node2"));
        clusterState = ClusterState.builder(clusterState).nodes(nodes.build()).build();

        RoutingTable routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));

        RoutingTable prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(4));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(6));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(prev, Matchers.sameInstance(routingTable));
        assertNumIndexShardsPerNode(clusterState, Matchers.equalTo(2));
        logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
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        nodes.put(newNode("node2"));
        clusterState = ClusterState.builder(clusterState).nodes(nodes.build()).build();

        RoutingTable routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));

        RoutingTable prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(4));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(2));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), Matchers.equalTo(6));
        assertThat(clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node0").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), Matchers.equalTo(0));
        assertThat(prev, Matchers.not(Matchers.sameInstance(routingTable)));

        prev = routingTable;
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();
        assertThat(prev, Matchers.sameInstance(routingTable));
        assertNumIndexShardsPerNode(clusterState, Matchers.equalTo(2));
        logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
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        clusterState = ClusterState.builder(clusterState).nodes(nodes.build()).build();

        RoutingTable routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        // move initializing to started

        RoutingTable prev = routingTable;
        while (true) {
            logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
            routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
            clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
            routingNodes = clusterState.routingNodes();
            if (routingTable == prev)
                break;
            prev = routingTable;
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            nodes.put(newNode("node" + i));
        }
        ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.DEFAULT).nodes(nodes).metaData(metaData).routingTable(routingTable).build();
        routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        logger.info("restart all the primary shards, replicas will start initializing");
        routingNodes = clusterState.routingNodes();
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("complete rebalancing");
        RoutingTable prev = routingTable;
        while (true) {
            logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
            routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
            clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
            routingNodes = clusterState.routingNodes();
            if (routingTable == prev)
                break;
            prev = routingTable;
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        MetaData metaData = metaDataBuilder.build();
        RoutingTable routingTable = routingTableBuilder.build();
        clusterState = ClusterState.builder(clusterState).metaData(metaData).routingTable(routingTable).build();
        routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        logger.info("restart all the primary shards, replicas will start initializing");
        routingNodes = clusterState.routingNodes();
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingNodes = clusterState.routingNodes();
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("complete rebalancing");
        RoutingTable prev = routingTable;
        while (true) {
            logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
            routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
            clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
            routingNodes = clusterState.routingNodes();
            if (routingTable == prev)
                break;
            prev = routingTable;
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                break;
            }
        }

        clusterState = ClusterState.builder(clusterState).nodes(nodes.build()).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        logger.info("start all the primary shards, replicas will start initializing");
        RoutingTable routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("start the replica shards");
        routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("rebalancing");
        routingTable = service.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        logger.info("complete rebalancing");
        RoutingTable prev = routingTable;
        while (true) {
            logger.debug("ClusterState: {}", clusterState.getRoutingNodes().prettyPrint());
            routingTable = service.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
            clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
            routingNodes = clusterState.routingNodes();
            if (routingTable == prev)
                break;
            prev = routingTable;
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        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(3));
        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).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));
        }

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

        logger.info("Start the more shards");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(3));
        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).replicaShards().size(), equalTo(1));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test1").shards().size(), equalTo(3));
        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).size(), equalTo(2));
            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().size(), equalTo(1));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(4));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(4));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(4));

        assertThat(routingNodes.node("node1").shardsWithState("test", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node2").shardsWithState("test", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node3").shardsWithState("test", STARTED).size(), equalTo(2));

        assertThat(routingNodes.node("node1").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node2").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node3").shardsWithState("test1", STARTED).size(), equalTo(2));
    }
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        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        logger.info("Start the primary shard");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(3));
        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).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));
        }

        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.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(3));
        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).replicaShards().size(), equalTo(1));
            assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test1").shards().size(), equalTo(3));
        for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
            assertThat(routingTable.index("test1").shard(i).size(), equalTo(2));
            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().size(), equalTo(1));
            assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
        }

        logger.info("Add another node and perform rerouting, nothing will happen since primary not started");
        clusterState = ClusterState.builder(clusterState)
                .nodes(DiscoveryNodes.builder(clusterState.nodes()).put(newNode("node3"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        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.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(3));

        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
        assertThat(routingTable.index("test1").shards().size(), equalTo(3));

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(4));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(4));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(4));

        assertThat(routingNodes.node("node1").shardsWithState("test", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node2").shardsWithState("test", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node3").shardsWithState("test", STARTED).size(), equalTo(2));

        assertThat(routingNodes.node("node1").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node2").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node3").shardsWithState("test1", STARTED).size(), equalTo(2));
    }
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Related Classes of org.elasticsearch.cluster.routing.RoutingNodes

  • org.elasticsearch.cluster.metadata.IndexMetaData
  • org.elasticsearch.cluster.routing.allocation.AddIncrementallyTests
  • org.elasticsearch.cluster.routing.allocation.allocator.EvenShardsCountAllocator
  • org.elasticsearch.cluster.routing.allocation.ClusterRebalanceRoutingTests
  • org.elasticsearch.cluster.routing.allocation.ConcurrentRebalanceRoutingTests
  • org.elasticsearch.cluster.routing.allocation.ElectReplicaAsPrimaryDuringRelocationTests
  • org.elasticsearch.cluster.routing.allocation.FailedNodeRoutingTests
  • org.elasticsearch.cluster.routing.allocation.FailedShardsRoutingTests
  • org.elasticsearch.cluster.routing.allocation.IndexBalanceTests
  • org.elasticsearch.cluster.routing.allocation.NodeVersionAllocationDeciderTests
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