Package org.elasticsearch.cluster.routing

Examples of org.elasticsearch.cluster.routing.RoutingTable

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        if (event.state().blocks().disableStatePersistence()) {
            return;
        }

        // when all shards are started within a shard replication group, delete an unallocated shard on this node
        RoutingTable routingTable = event.state().routingTable();
        for (IndexRoutingTable indexRoutingTable : routingTable) {
            IndexService indexService = indicesService.indexService(indexRoutingTable.index());
            if (indexService == null) {
                // we handle this later...
                continue;
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    @Test public void testIterator1() {
        MetaData metaData = newMetaDataBuilder()
                .put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(2))
                .build();
        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .build();

        ShardIterator shardIterator = routingTable.index("test1").shard(0).shardsIt(0);
        assertThat(shardIterator.size(), equalTo(3));
        assertThat(shardIterator.firstOrNull(), notNullValue());
        assertThat(shardIterator.remaining(), equalTo(3));
        assertThat(shardIterator.firstOrNull(), sameInstance(shardIterator.firstOrNull()));
        assertThat(shardIterator.remaining(), equalTo(3));
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        MetaData metaData = newMetaDataBuilder()
                .put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
                .put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
                .build();

        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ShardIterator shardIterator = routingTable.index("test1").shard(0).shardsIt(0);
        assertThat(shardIterator.size(), equalTo(2));
        assertThat(shardIterator.firstOrNull(), notNullValue());
        assertThat(shardIterator.remaining(), equalTo(2));
        assertThat(shardIterator.firstOrNull(), sameInstance(shardIterator.firstOrNull()));
        assertThat(shardIterator.remaining(), equalTo(2));
        ShardRouting shardRouting1 = shardIterator.nextOrNull();
        assertThat(shardRouting1, notNullValue());
        assertThat(shardIterator.remaining(), equalTo(1));
        ShardRouting shardRouting2 = shardIterator.nextOrNull();
        assertThat(shardRouting2, notNullValue());
        assertThat(shardIterator.remaining(), equalTo(0));
        assertThat(shardRouting2, not(sameInstance(shardRouting1)));
        assertThat(shardIterator.nextOrNull(), nullValue());
        assertThat(shardIterator.remaining(), equalTo(0));
        assertThat(shardIterator.nextOrNull(), nullValue());
        assertThat(shardIterator.remaining(), equalTo(0));

        shardIterator = routingTable.index("test1").shard(0).shardsIt(1);
        assertThat(shardIterator.size(), equalTo(2));
        assertThat(shardIterator.firstOrNull(), notNullValue());
        assertThat(shardIterator.firstOrNull(), sameInstance(shardIterator.firstOrNull()));
        ShardRouting shardRouting3 = shardIterator.nextOrNull();
        assertThat(shardRouting1, notNullValue());
        ShardRouting shardRouting4 = shardIterator.nextOrNull();
        assertThat(shardRouting2, notNullValue());
        assertThat(shardRouting2, not(sameInstance(shardRouting1)));
        assertThat(shardIterator.nextOrNull(), nullValue());
        assertThat(shardIterator.nextOrNull(), nullValue());

        assertThat(shardRouting1, not(sameInstance(shardRouting3)));
        assertThat(shardRouting2, not(sameInstance(shardRouting4)));
        assertThat(shardRouting1, sameInstance(shardRouting4));
        assertThat(shardRouting2, sameInstance(shardRouting3));

        shardIterator = routingTable.index("test1").shard(0).shardsIt(2);
        assertThat(shardIterator.size(), equalTo(2));
        assertThat(shardIterator.firstOrNull(), notNullValue());
        assertThat(shardIterator.firstOrNull(), sameInstance(shardIterator.firstOrNull()));
        ShardRouting shardRouting5 = shardIterator.nextOrNull();
        assertThat(shardRouting5, notNullValue());
        ShardRouting shardRouting6 = shardIterator.nextOrNull();
        assertThat(shardRouting6, notNullValue());
        assertThat(shardRouting6, not(sameInstance(shardRouting5)));
        assertThat(shardIterator.nextOrNull(), nullValue());
        assertThat(shardIterator.nextOrNull(), nullValue());

        assertThat(shardRouting5, sameInstance(shardRouting1));
        assertThat(shardRouting6, sameInstance(shardRouting2));

        shardIterator = routingTable.index("test1").shard(0).shardsIt(3);
        assertThat(shardIterator.size(), equalTo(2));
        assertThat(shardIterator.firstOrNull(), notNullValue());
        assertThat(shardIterator.firstOrNull(), sameInstance(shardIterator.firstOrNull()));
        ShardRouting shardRouting7 = shardIterator.nextOrNull();
        assertThat(shardRouting7, notNullValue());
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        MetaData metaData = newMetaDataBuilder()
                .put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
                .put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
                .build();

        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
                .add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
                .build();

        ShardIterator shardIterator = routingTable.index("test1").shard(0).shardsRandomIt();
        ShardRouting shardRouting1 = shardIterator.nextOrNull();
        assertThat(shardRouting1, notNullValue());
        assertThat(shardIterator.nextOrNull(), notNullValue());
        assertThat(shardIterator.nextOrNull(), nullValue());

        shardIterator = routingTable.index("test1").shard(0).shardsRandomIt();
        ShardRouting shardRouting2 = shardIterator.nextOrNull();
        assertThat(shardRouting2, notNullValue());
        ShardRouting shardRouting3 = shardIterator.nextOrNull();
        assertThat(shardRouting3, notNullValue());
        assertThat(shardIterator.nextOrNull(), nullValue());
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    private void applyNewOrUpdatedShards(final ClusterChangedEvent event) throws ElasticSearchException {
        if (!indicesService.changesAllowed())
            return;

        RoutingTable routingTable = event.state().routingTable();
        RoutingNode routingNodes = event.state().readOnlyRoutingNodes().nodesToShards().get(event.state().nodes().localNodeId());
        if (routingNodes == null) {
            return;
        }
        DiscoveryNodes nodes = event.state().nodes();


        for (final ShardRouting shardRouting : routingNodes) {
            final IndexService indexService = indicesService.indexService(shardRouting.index());
            if (indexService == null) {
                // got deleted on us, ignore
                continue;
            }

            final int shardId = shardRouting.id();

            if (!indexService.hasShard(shardId) && shardRouting.started()) {
                // the master thinks we are started, but we don't have this shard at all, mark it as failed
                logger.warn("[{}][{}] master [{}] marked shard as started, but shard have not been created, mark shard as failed", shardRouting.index(), shardId, nodes.masterNode());
                shardStateAction.shardFailed(shardRouting, "master " + nodes.masterNode() + " marked shard as started, but shard have not been created, mark shard as failed");
                continue;
            }

            if (indexService.hasShard(shardId)) {
                InternalIndexShard indexShard = (InternalIndexShard) indexService.shard(shardId);
                if (!shardRouting.equals(indexShard.routingEntry())) {
                    indexShard.routingEntry(shardRouting);
                    indexService.shardInjector(shardId).getInstance(IndexShardGatewayService.class).routingStateChanged();
                }
            }

            if (shardRouting.initializing()) {
                applyInitializingShard(routingTable, nodes, routingTable.index(shardRouting.index()).shard(shardRouting.id()), shardRouting);
            }
        }
    }
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                .addGlobalBlock(NO_MASTER_BLOCK)
                .addGlobalBlock(GatewayService.STATE_NOT_RECOVERED_BLOCK)
                .build();

        // clear the routing table, we have no master, so we need to recreate the routing when we reform the cluster
        RoutingTable routingTable = RoutingTable.builder().version(clusterState.routingTable().version()).build();
        // we also clean the metadata, since we are going to recover it if we become master
        MetaData metaData = MetaData.builder().build();

        // clean the nodes, we are now not connected to anybody, since we try and reform the cluster
        latestDiscoNodes = new DiscoveryNodes.Builder().put(localNode).localNodeId(localNode.id()).build();
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    @Test public void testClusterStateSerialization() throws Exception {
        MetaData metaData = newMetaDataBuilder()
                .put(newIndexMetaDataBuilder("test").numberOfShards(10).numberOfReplicas(1))
                .build();

        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test").initializeEmpty(metaData.index("test")))
                .build();

        DiscoveryNodes nodes = DiscoveryNodes.newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).localNodeId("node1").masterNodeId("node2").build();
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    @Test public void testRoutingTableSerialization() throws Exception {
        MetaData metaData = newMetaDataBuilder()
                .put(newIndexMetaDataBuilder("test").numberOfShards(10).numberOfReplicas(1))
                .build();

        RoutingTable routingTable = routingTable()
                .add(indexRoutingTable("test").initializeEmpty(metaData.index("test")))
                .build();

        DiscoveryNodes nodes = DiscoveryNodes.newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")).build();

        ClusterState clusterState = newClusterStateBuilder().nodes(nodes).metaData(metaData).routingTable(routingTable).build();

        ShardsAllocation strategy = new ShardsAllocation();
        RoutingTable source = strategy.reroute(clusterState).routingTable();

        BytesStreamOutput outStream = new BytesStreamOutput();
        RoutingTable.Builder.writeTo(source, outStream);
        BytesStreamInput inStream = new BytesStreamInput(outStream.copiedByteArray());
        RoutingTable target = RoutingTable.Builder.readFrom(inStream);

        assertThat(target.prettyPrint(), equalTo(source.prettyPrint()));
    }
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    }

    @Override public void contribute(Dump dump) throws DumpContributionFailedException {
        ClusterState clusterState = clusterService.state();
        DiscoveryNodes nodes = clusterState.nodes();
        RoutingTable routingTable = clusterState.routingTable();

        PrintWriter writer = new PrintWriter(dump.createFileWriter("cluster.txt"));

        writer.println("===== CLUSTER NODES ======");
        writer.print(nodes.prettyPrint());

        writer.println("===== ROUTING TABLE ======");
        writer.print(routingTable.prettyPrint());

        writer.close();
    }
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                // nothing to process (a previous event has process it already)
                if (shards.isEmpty()) {
                    return currentState;
                }

                RoutingTable routingTable = currentState.routingTable();

                for (int i = 0; i < shards.size(); i++) {
                    ShardRouting shardRouting = shards.get(i);
                    IndexRoutingTable indexRoutingTable = routingTable.index(shardRouting.index());
                    // if there is no routing table, the index has been deleted while it was being allocated
                    // which is fine, we should just ignore this
                    if (indexRoutingTable == null) {
                        shards.remove(i);
                    } else {
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Related Classes of org.elasticsearch.cluster.routing.RoutingTable

  • org.elasticsearch.benchmark.cluster.ClusterAllocationRerouteBenchmark
  • org.elasticsearch.cluster.action.shard.ShardStateAction
  • org.elasticsearch.cluster.routing.allocation.AddIncrementallyTests
  • org.elasticsearch.cluster.routing.allocation.AllocatePostApiFlagTests
  • org.elasticsearch.cluster.routing.allocation.AllocationCommandsTests
  • org.elasticsearch.cluster.routing.allocation.AwarenessAllocationTests
  • org.elasticsearch.cluster.routing.allocation.ClusterRebalanceRoutingTests
  • org.elasticsearch.cluster.routing.allocation.ConcurrentRebalanceRoutingTests
  • org.elasticsearch.cluster.routing.allocation.DeadNodesAllocationTests
  • org.elasticsearch.cluster.routing.allocation.decider.EnableAllocationTests
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