Package org.elasticsearch.cluster

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

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                encounteredIndices.add(shardRoutingEntry.index());
            }
        }

        logger.info("Adding additional " + (numberOfIndices / 2) + " nodes, nothing should change");
        nodesBuilder = newNodesBuilder().putAll(clusterState.nodes());
        for (int i = (numberOfIndices / 2); i < numberOfIndices; i++) {
            nodesBuilder.put(newNode("node" + i));
        }
        prevRoutingTable = routingTable;
        clusterState = newClusterStateBuilder().state(clusterState).nodes(nodesBuilder).build();
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        assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), anyOf(equalTo(3), equalTo(4)));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), anyOf(equalTo(3), equalTo(4)));

        logger.info("Start two more nodes, things should remain the same");
        clusterState = newClusterStateBuilder().state(clusterState)
                .nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node4")).put(newNode("node5")))
                .build();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
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        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 = 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(routingTable == prevRoutingTable, equalTo(true));
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        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 = 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(routingTable != prevRoutingTable, equalTo(true));
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        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 = 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(routingTable == prevRoutingTable, equalTo(true));
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                encounteredIndices.add(shardRoutingEntry.index());
            }
        }

        logger.info("Adding additional " + (numberOfIndices / 2) + " nodes, nothing should change");
        nodesBuilder = newNodesBuilder().putAll(clusterState.nodes());
        for (int i = (numberOfIndices / 2); i < numberOfIndices; i++) {
            nodesBuilder.put(newNode("node" + i));
        }
        prevRoutingTable = routingTable;
        clusterState = newClusterStateBuilder().state(clusterState).nodes(nodesBuilder).build();
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        assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), anyOf(equalTo(3), equalTo(4)));
        assertThat(routingNodes.node("node2").numberOfShardsWithState(INITIALIZING), anyOf(equalTo(3), equalTo(4)));

        logger.info("Start two more nodes, things should remain the same");
        clusterState = newClusterStateBuilder().state(clusterState)
                .nodes(newNodesBuilder().putAll(clusterState.nodes()).put(newNode("node4")).put(newNode("node5")))
                .build();
        clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();

        prevRoutingTable = routingTable;
        routingTable = strategy.reroute(clusterState).routingTable();
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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("now, start 1 more node, check that rebalancing will happen (for test1) because we set it to always");
        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();
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            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 happen (for test1) because we set it to primaries_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();
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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("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to primaries_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();
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