Package org.elasticsearch.cluster

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

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        }

        assertThat("failed to find relocating replica", indexShardRoutingTable, notNullValue());

        logger.info("kill the node [{}] of the primary shard for the relocating replica", indexShardRoutingTable.primaryShard().currentNodeId());
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).remove(indexShardRoutingTable.primaryShard().currentNodeId())).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("make sure all the primary shards are active");
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        assertThat(routingTable.index("test").shards().size(), equalTo(2));
        assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(2));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(2));

        logger.info("Start 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();

        logger.info("find the replica shard that gets relocated");
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        }

        assertThat("failed to find relocating replica", indexShardRoutingTable, notNullValue());

        logger.info("kill the node [{}] of the primary shard for the relocating replica", indexShardRoutingTable.primaryShard().currentNodeId());
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).remove(indexShardRoutingTable.primaryShard().currentNodeId())).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        logger.info("make sure all the primary shards are active");
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        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("Add another node and perform rerouting, nothing will happen since primary shards 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));
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        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node2"));

        logger.info("Kill node1, backup shard should become primary");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).remove("node1")).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        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 another node, backup shard should start initializing");

        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();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        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("Add another node and perform rerouting, nothing will happen since primary shards 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));
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        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(STARTED));
        assertThat(routingTable.index("test").shard(0).replicaShards().get(0).currentNodeId(), equalTo("node2"));

        logger.info("Kill node1, backup shard should become primary");

        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).remove("node1")).build();
        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        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 another node, backup shard should start initializing");

        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();

        assertThat(prevRoutingTable != routingTable, equalTo(true));
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        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

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

        logger.info("start another node, replica will start recovering form primary");
        clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node2"))).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

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