Package org.elasticsearch.cluster

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

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        }
    }

    public void assertAllShardsOnNodes(String index, String pattern) {
        ClusterState clusterState = client().admin().cluster().prepareState().execute().actionGet().getState();
        for (IndexRoutingTable indexRoutingTable : clusterState.routingTable()) {
            for (IndexShardRoutingTable indexShardRoutingTable : indexRoutingTable) {
                for (ShardRouting shardRouting : indexShardRoutingTable) {
                    if (shardRouting.currentNodeId() != null && index.equals(shardRouting.getIndex())) {
                        String name = clusterState.nodes().get(shardRouting.currentNodeId()).name();
                        assertThat("Allocated on new node: " + name, Regex.simpleMatch(pattern, name), is(true));
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        }
        if (request.routingTable()) {
            if (request.indices().length > 0) {
                RoutingTable.Builder routingTableBuilder = RoutingTable.builder();
                for (String filteredIndex : request.indices()) {
                    if (currentState.routingTable().getIndicesRouting().containsKey(filteredIndex)) {
                        routingTableBuilder.add(currentState.routingTable().getIndicesRouting().get(filteredIndex));
                    }
                }
                builder.routingTable(routingTableBuilder);
            } else {
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        if (request.routingTable()) {
            if (request.indices().length > 0) {
                RoutingTable.Builder routingTableBuilder = RoutingTable.builder();
                for (String filteredIndex : request.indices()) {
                    if (currentState.routingTable().getIndicesRouting().containsKey(filteredIndex)) {
                        routingTableBuilder.add(currentState.routingTable().getIndicesRouting().get(filteredIndex));
                    }
                }
                builder.routingTable(routingTableBuilder);
            } else {
                builder.routingTable(currentState.routingTable());
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                        routingTableBuilder.add(currentState.routingTable().getIndicesRouting().get(filteredIndex));
                    }
                }
                builder.routingTable(routingTableBuilder);
            } else {
                builder.routingTable(currentState.routingTable());
            }
        }
        if (request.blocks()) {
            builder.blocks(currentState.blocks());
        }
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        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();

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

        logger.info("--> do another reroute, make sure nothing moves");
        assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));

        logger.info("--> add another node with a new rack, make sure nothing moves");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())
                .put(newNode("node4", ImmutableMap.of("rack_id", "3")))
        ).build();
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        logger.info("--> add another node with a new rack, make sure nothing moves");
        clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())
                .put(newNode("node4", ImmutableMap.of("rack_id", "3")))
        ).build();
        routingTable = strategy.reroute(clusterState).routingTable();
        assertThat(routingTable, sameInstance(clusterState.routingTable()));
        clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
    }

    @Test
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        clusterState = ClusterState.builder(clusterState).routingTable(allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable()).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));

        // fail the primary shard, check replicas get removed as well...
        ShardRouting primaryShardToFail = clusterState.routingTable().index("test").shard(0).primaryShard();
        RoutingAllocation.Result routingResult = allocation.applyFailedShard(clusterState, primaryShardToFail);
        assertThat(routingResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(routingResult.routingTable()).build();
        // the primary gets allocated on another node, replicas are unassigned
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
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        clusterState = ClusterState.builder(clusterState).routingTable(routingResult.routingTable()).build();
        // the primary gets allocated on another node, replicas are unassigned
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
        assertThat(clusterState.routingNodes().shardsWithState(UNASSIGNED).size(), equalTo(2));

        ShardRouting newPrimaryShard = clusterState.routingTable().index("test").shard(0).primaryShard();
        assertThat(newPrimaryShard, not(equalTo(primaryShardToFail)));

        // start the primary shard
        clusterState = ClusterState.builder(clusterState).routingTable(allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable()).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
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        clusterState = ClusterState.builder(clusterState).routingTable(allocation.applyStartedShards(clusterState, ImmutableList.of(clusterState.routingNodes().shardsWithState(INITIALIZING).get(0))).routingTable()).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));

        // fail the primary shard, check one replica gets elected to primary, others become INITIALIZING (from it)
        ShardRouting primaryShardToFail = clusterState.routingTable().index("test").shard(0).primaryShard();
        RoutingAllocation.Result routingResult = allocation.applyFailedShard(clusterState, primaryShardToFail);
        assertThat(routingResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(routingResult.routingTable()).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
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        assertThat(routingResult.changed(), equalTo(true));
        clusterState = ClusterState.builder(clusterState).routingTable(routingResult.routingTable()).build();
        assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));

        ShardRouting newPrimaryShard = clusterState.routingTable().index("test").shard(0).primaryShard();
        assertThat(newPrimaryShard, not(equalTo(primaryShardToFail)));

        // simulate another failure coming in, with the "old" shard routing, verify that nothing changes, and we ignore it
        routingResult = allocation.applyFailedShard(clusterState, primaryShardToFail);
        assertThat(routingResult.changed(), equalTo(false));
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