Package org.elasticsearch.cluster.routing

Examples of org.elasticsearch.cluster.routing.RoutingNodes

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            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 = ClusterState.builder(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 = ClusterState.builder(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 = ClusterState.builder(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 = 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();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.node("node3").isEmpty(), equalTo(true));
    }
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        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        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 = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        logger.info("Adding third node and reroute and kill first node");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).put(newNode("node3")).remove("node1")).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        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(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node3"));
    }
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        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().put(newNode("node1")).put(newNode("node2"))).build();
        RoutingAllocation.Result rerouteResult = allocation.reroute(clusterState);
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();

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

        assertThat(routingNodes.shardsWithState(STARTED).size(), equalTo(2));
        assertThat(routingNodes.shardsWithState(INITIALIZING).size(), equalTo(2));

        // now, fail one node, while the replica is initializing, and it also holds a primary
        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();
        rerouteResult = allocation.reroute(clusterState);
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        routingNodes = clusterState.routingNodes();

        assertThat(routingNodes.shardsWithState(STARTED).size(), equalTo(1));
        assertThat(routingNodes.shardsWithState(INITIALIZING).size(), equalTo(1));
        assertThat(routingNodes.node(nodeIdRemaining).shardsWithState(INITIALIZING).get(0).primary(), equalTo(true));

    }
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            assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
            assertThat(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.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            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().get(0).state(), equalTo(INITIALIZING));
        }

        logger.info("now, start 8 more nodes, and check that no rebalancing/relocation have happened");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())
                .put(newNode("node3")).put(newNode("node4")).put(newNode("node5")).put(newNode("node6")).put(newNode("node7")).put(newNode("node8")).put(newNode("node9")).put(newNode("node10")))
                .build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
            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().get(0).state(), equalTo(INITIALIZING));
        }

        logger.info("start the replica shards, rebalancing should start, but, only 3 should be rebalancing");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        // we only allow one relocation at a time
        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(7));
        assertThat(routingTable.shardsWithState(RELOCATING).size(), equalTo(3));

        logger.info("finalize this session relocation, 3 more should relocate now");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        // we only allow one relocation at a time
        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(7));
        assertThat(routingTable.shardsWithState(RELOCATING).size(), equalTo(3));

        logger.info("finalize this session relocation, 2 more should relocate now");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        // we only allow one relocation at a time
        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(8));
        assertThat(routingTable.shardsWithState(RELOCATING).size(), equalTo(2));

        logger.info("finalize this session relocation, no more relocation");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        // we only allow one relocation at a time
        assertThat(routingTable.shardsWithState(STARTED).size(), equalTo(10));
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                .put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(3).numberOfReplicas(1)).build();

        RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test")).addAsNew(metaData.index("test1")).build();

        ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.DEFAULT).metaData(metaData).routingTable(routingTable).build();
        RoutingNodes routingNodes = clusterState.routingNodes();

        logger.info("Adding three node and performing rerouting");
        clusterState = ClusterState.builder(clusterState)
                .nodes(DiscoveryNodes.builder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3"))).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        // all shards are unassigned. so no inactive shards or primaries.
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));

        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        logger.info("Another round of rebalancing");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

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

        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(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

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

    }
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        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        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();

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

        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();

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

        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();

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

        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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        logger.info("Adding three node and performing rerouting");
        clusterState = ClusterState.builder(clusterState)
                .nodes(DiscoveryNodes.builder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3"))).build();

        RoutingNodes routingNodes = clusterState.routingNodes();
        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));

        RoutingTable prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        logger.info("Another round of rebalancing");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        routingNodes = clusterState.routingNodes();
        assertThat(routingNodes.node("node1").numberOfShardsWithState(INITIALIZING), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));

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

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(1));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(1));

        logger.info("Reroute, nothing should change");
        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(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(2));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(2));
        assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(2));

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

        logger.info("Add new index 3 shards 1 replica");

        prevRoutingTable = routingTable;
        metaData = MetaData.builder(metaData)
                .put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)
                        .put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 3)
                        .put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
                ))
                .build();
        routingTable = RoutingTable.builder(routingTable)
                .addAsNew(metaData.index("test1"))
                .build();
        clusterState = ClusterState.builder(clusterState).metaData(metaData).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(true));

        assertThat(routingTable.index("test1").shards().size(), equalTo(3));

        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        logger.info("Reroute, assign");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(true));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

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

        logger.info("Reroute, start the primaries");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        logger.info("Reroute, start the replicas");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));


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

        assertThat(routingNodes.node("node1").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node2").shardsWithState("test1", STARTED).size(), equalTo(2));
        assertThat(routingNodes.node("node3").shardsWithState("test1", STARTED).size(), equalTo(2));

        logger.info("kill one node");
        IndexShardRoutingTable indexShardRoutingTable = routingTable.index("test").shard(0);
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).remove(indexShardRoutingTable.primaryShard().currentNodeId())).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        // replica got promoted to primary
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        logger.info("Start Recovering shards round 1");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(true));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

        logger.info("Start Recovering shards round 2");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        routingNodes = clusterState.routingNodes();

        assertThat(assertShardStats(routingNodes), equalTo(true));
        assertThat(routingNodes.hasInactiveShards(), equalTo(false));
        assertThat(routingNodes.hasInactivePrimaries(), equalTo(false));
        assertThat(routingNodes.hasUnassignedPrimaries(), equalTo(false));

    }
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        });
        assertThat("document should still be indexed and available",
                client().prepareGet(INDEX, "doc", resp.getId()).get().isExists(), equalTo(true));

        state = getNodeClusterState(randomFrom(nodes.toArray(Strings.EMPTY_ARRAY)));
        RoutingNodes rn = state.routingNodes();
        logger.info("--> counts: total: {}, unassigned: {}, initializing: {}, relocating: {}, started: {}",
                rn.shards(new Predicate<MutableShardRouting>() {
                    @Override
                    public boolean apply(org.elasticsearch.cluster.routing.MutableShardRouting input) {
                        return true;
                    }
                }).size(),
                rn.shardsWithState(UNASSIGNED).size(),
                rn.shardsWithState(INITIALIZING).size(),
                rn.shardsWithState(RELOCATING).size(),
                rn.shardsWithState(STARTED).size());
        logger.info("--> unassigned: {}, initializing: {}, relocating: {}, started: {}",
                rn.shardsWithState(UNASSIGNED),
                rn.shardsWithState(INITIALIZING),
                rn.shardsWithState(RELOCATING),
                rn.shardsWithState(STARTED));

        assertThat("only a single shard is now active (replica should be failed and not reallocated)",
                rn.shardsWithState(STARTED).size(), equalTo(1));
    }
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        routingTable = strategy.reroute(clusterState).routingTable();
        assertThat(routingTable == prevRoutingTable, equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        logger.info("Marking the shard as started");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        assertThat(routingTable != prevRoutingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node1"));

        logger.info("Starting another node and making sure nothing changed");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).put(newNode("node2"))).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        assertThat(routingTable == prevRoutingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node1"));

        logger.info("Killing node1 where the shard is, checking the shard is relocated");

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

        assertThat(routingTable != prevRoutingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(INITIALIZING));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node2"));

        logger.info("Start another node, make sure that things remain the same (shard is in node2 and initializing)");
        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(routingTable == prevRoutingTable, equalTo(true));

        logger.info("Start the shard on node 2");
        routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyStartedShards(clusterState, routingNodes.node("node2").shardsWithState(INITIALIZING)).routingTable();
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

        assertThat(routingTable != prevRoutingTable, equalTo(true));
        assertThat(routingTable.index("test").shards().size(), equalTo(1));
        assertThat(routingTable.index("test").shard(0).size(), equalTo(1));
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        assertThat(routingTable.index("test").shard(0).shards().get(0).unassigned(), equalTo(false));
        assertThat(routingTable.index("test").shard(0).shards().get(0).state(), equalTo(INITIALIZING));
        assertThat(routingTable.index("test").shard(0).shards().get(0).currentNodeId(), equalTo("node1"));

        logger.info("Marking the shard as failed");
        RoutingNodes routingNodes = clusterState.routingNodes();
        prevRoutingTable = routingTable;
        routingTable = strategy.applyFailedShard(clusterState, routingNodes.node("node1").shardsWithState(INITIALIZING).get(0)).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(1));
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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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