Examples with RoutingTable org.elasticsearch.cluster.routing.RoutingTable used on opensource projects

Example 91 with RoutingTable

use of org.elasticsearch.cluster.routing.RoutingTable in project elasticsearch by elastic.

the class RoutingIteratorTests method testNodeSelectorRouting.

public void testNodeSelectorRouting() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").build());
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test")).build();
    ClusterState clusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("fred", "node1", singletonMap("disk", "ebs"))).add(newNode("barney", "node2", singletonMap("disk", "ephemeral"))).localNodeId("node1")).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    clusterState = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
    ShardsIterator shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("disk:ebs", clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(1));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("dis*:eph*", clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(1));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node2"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("fred", clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(1));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("bar*", clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(1));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node2"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt(new String[] { "disk:eph*", "disk:ebs" }, clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(2));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node2"));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt(new String[] { "disk:*", "invalid_name" }, clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(2));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node2"));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt(new String[] { "disk:*", "disk:*" }, clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(2));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node2"));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
    try {
        shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("welma", clusterState.nodes());
        fail("should have raised illegalArgumentException");
    } catch (IllegalArgumentException illegal) {
    //expected exception
    }
    shardsIterator = clusterState.routingTable().index("test").shard(0).onlyNodeSelectorActiveInitializingShardsIt("fred", clusterState.nodes());
    assertThat(shardsIterator.size(), equalTo(1));
    assertThat(shardsIterator.nextOrNull().currentNodeId(), equalTo("node1"));
}

Example 92 with RoutingTable

use of org.elasticsearch.cluster.routing.RoutingTable in project elasticsearch by elastic.

the class RoutingIteratorTests method testRandomRouting.

public void testRandomRouting() {
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test1")).addAsNew(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());
    assertThat(shardRouting1, not(sameInstance(shardRouting2)));
    assertThat(shardRouting1, sameInstance(shardRouting3));
}

Example 93 with RoutingTable

use of org.elasticsearch.cluster.routing.RoutingTable in project elasticsearch by elastic.

the class RoutingIteratorTests method testIterator2.

public void testIterator2() {
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable routingTable = RoutingTable.builder().addAsNew(metaData.index("test1")).addAsNew(metaData.index("test2")).build();
    ShardIterator shardIterator = routingTable.index("test1").shard(0).shardsIt(0);
    assertThat(shardIterator.size(), 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));
    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));
    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));
    ShardRouting shardRouting7 = shardIterator.nextOrNull();
    assertThat(shardRouting7, notNullValue());
    ShardRouting shardRouting8 = shardIterator.nextOrNull();
    assertThat(shardRouting8, notNullValue());
    assertThat(shardRouting8, not(sameInstance(shardRouting7)));
    assertThat(shardIterator.nextOrNull(), nullValue());
    assertThat(shardIterator.nextOrNull(), nullValue());
    assertThat(shardRouting7, sameInstance(shardRouting3));
    assertThat(shardRouting8, sameInstance(shardRouting4));
    shardIterator = routingTable.index("test1").shard(0).shardsIt(4);
    assertThat(shardIterator.size(), equalTo(2));
    ShardRouting shardRouting9 = shardIterator.nextOrNull();
    assertThat(shardRouting9, notNullValue());
    ShardRouting shardRouting10 = shardIterator.nextOrNull();
    assertThat(shardRouting10, notNullValue());
    assertThat(shardRouting10, not(sameInstance(shardRouting9)));
    assertThat(shardIterator.nextOrNull(), nullValue());
    assertThat(shardIterator.nextOrNull(), nullValue());
    assertThat(shardRouting9, sameInstance(shardRouting5));
    assertThat(shardRouting10, sameInstance(shardRouting6));
}

Example 94 with RoutingTable

use of org.elasticsearch.cluster.routing.RoutingTable in project crate by crate.

the class TransportBulkCreateIndicesAction method executeCreateIndices.

/**
     * This code is more or less the same as the stuff in {@link MetaDataCreateIndexService}
     * but optimized for bulk operation without separate mapping/alias/index settings.
     */
ClusterState executeCreateIndices(ClusterState currentState, BulkCreateIndicesRequest request) throws Exception {
    List<String> indicesToCreate = new ArrayList<>(request.indices().size());
    String removalReason = null;
    String testIndex = null;
    try {
        validateAndFilterExistingIndices(currentState, indicesToCreate, request);
        if (indicesToCreate.isEmpty()) {
            return currentState;
        }
        Map<String, IndexMetaData.Custom> customs = Maps.newHashMap();
        Map<String, Map<String, Object>> mappings = Maps.newHashMap();
        Map<String, AliasMetaData> templatesAliases = Maps.newHashMap();
        List<String> templateNames = Lists.newArrayList();
        List<IndexTemplateMetaData> templates = findTemplates(request, currentState, indexTemplateFilter);
        applyTemplates(customs, mappings, templatesAliases, templateNames, templates);
        File mappingsDir = new File(environment.configFile().toFile(), "mappings");
        if (mappingsDir.isDirectory()) {
            addMappingFromMappingsFile(mappings, mappingsDir, request);
        }
        Settings indexSettings = createIndexSettings(currentState, templates);
        testIndex = indicesToCreate.get(0);
        indicesService.createIndex(testIndex, indexSettings, clusterService.localNode().getId());
        // now add the mappings
        IndexService indexService = indicesService.indexServiceSafe(testIndex);
        MapperService mapperService = indexService.mapperService();
        // first, add the default mapping
        if (mappings.containsKey(MapperService.DEFAULT_MAPPING)) {
            try {
                mapperService.merge(MapperService.DEFAULT_MAPPING, new CompressedXContent(XContentFactory.jsonBuilder().map(mappings.get(MapperService.DEFAULT_MAPPING)).string()), MapperService.MergeReason.MAPPING_UPDATE, false);
            } catch (Exception e) {
                removalReason = "failed on parsing default mapping on index creation";
                throw new MapperParsingException("mapping [" + MapperService.DEFAULT_MAPPING + "]", e);
            }
        }
        for (Map.Entry<String, Map<String, Object>> entry : mappings.entrySet()) {
            if (entry.getKey().equals(MapperService.DEFAULT_MAPPING)) {
                continue;
            }
            try {
                // apply the default here, its the first time we parse it
                mapperService.merge(entry.getKey(), new CompressedXContent(XContentFactory.jsonBuilder().map(entry.getValue()).string()), MapperService.MergeReason.MAPPING_UPDATE, false);
            } catch (Exception e) {
                removalReason = "failed on parsing mappings on index creation";
                throw new MapperParsingException("mapping [" + entry.getKey() + "]", e);
            }
        }
        IndexQueryParserService indexQueryParserService = indexService.queryParserService();
        for (AliasMetaData aliasMetaData : templatesAliases.values()) {
            if (aliasMetaData.filter() != null) {
                aliasValidator.validateAliasFilter(aliasMetaData.alias(), aliasMetaData.filter().uncompressed(), indexQueryParserService);
            }
        }
        // now, update the mappings with the actual source
        Map<String, MappingMetaData> mappingsMetaData = Maps.newHashMap();
        for (DocumentMapper mapper : mapperService.docMappers(true)) {
            MappingMetaData mappingMd = new MappingMetaData(mapper);
            mappingsMetaData.put(mapper.type(), mappingMd);
        }
        MetaData.Builder newMetaDataBuilder = MetaData.builder(currentState.metaData());
        for (String index : indicesToCreate) {
            Settings newIndexSettings = createIndexSettings(currentState, templates);
            final IndexMetaData.Builder indexMetaDataBuilder = IndexMetaData.builder(index).settings(newIndexSettings);
            for (MappingMetaData mappingMd : mappingsMetaData.values()) {
                indexMetaDataBuilder.putMapping(mappingMd);
            }
            for (AliasMetaData aliasMetaData : templatesAliases.values()) {
                indexMetaDataBuilder.putAlias(aliasMetaData);
            }
            for (Map.Entry<String, IndexMetaData.Custom> customEntry : customs.entrySet()) {
                indexMetaDataBuilder.putCustom(customEntry.getKey(), customEntry.getValue());
            }
            indexMetaDataBuilder.state(IndexMetaData.State.OPEN);
            final IndexMetaData indexMetaData;
            try {
                indexMetaData = indexMetaDataBuilder.build();
            } catch (Exception e) {
                removalReason = "failed to build index metadata";
                throw e;
            }
            logger.info("[{}] creating index, cause [bulk], templates {}, shards [{}]/[{}], mappings {}", index, templateNames, indexMetaData.getNumberOfShards(), indexMetaData.getNumberOfReplicas(), mappings.keySet());
            indexService.indicesLifecycle().beforeIndexAddedToCluster(new Index(index), indexMetaData.getSettings());
            newMetaDataBuilder.put(indexMetaData, false);
        }
        MetaData newMetaData = newMetaDataBuilder.build();
        ClusterState updatedState = ClusterState.builder(currentState).metaData(newMetaData).build();
        RoutingTable.Builder routingTableBuilder = RoutingTable.builder(updatedState.routingTable());
        for (String index : indicesToCreate) {
            routingTableBuilder.addAsNew(updatedState.metaData().index(index));
        }
        RoutingAllocation.Result routingResult = allocationService.reroute(ClusterState.builder(updatedState).routingTable(routingTableBuilder).build(), "bulk-index-creation");
        updatedState = ClusterState.builder(updatedState).routingResult(routingResult).build();
        removalReason = "cleaning up after validating index on master";
        return updatedState;
    } finally {
        if (testIndex != null) {
            // index was partially created - need to clean up
            indicesService.deleteIndex(testIndex, removalReason != null ? removalReason : "failed to create index");
        }
    }
}

Example 95 with RoutingTable

use of org.elasticsearch.cluster.routing.RoutingTable in project elasticsearch by elastic.

the class MetaDataCreateIndexService method onlyCreateIndex.

private void onlyCreateIndex(final CreateIndexClusterStateUpdateRequest request, final ActionListener<ClusterStateUpdateResponse> listener) {
    Settings.Builder updatedSettingsBuilder = Settings.builder();
    updatedSettingsBuilder.put(request.settings()).normalizePrefix(IndexMetaData.INDEX_SETTING_PREFIX);
    indexScopedSettings.validate(updatedSettingsBuilder);
    request.settings(updatedSettingsBuilder.build());
    clusterService.submitStateUpdateTask("create-index [" + request.index() + "], cause [" + request.cause() + "]", new AckedClusterStateUpdateTask<ClusterStateUpdateResponse>(Priority.URGENT, request, wrapPreservingContext(listener)) {

        @Override
        protected ClusterStateUpdateResponse newResponse(boolean acknowledged) {
            return new ClusterStateUpdateResponse(acknowledged);
        }

        @Override
        public ClusterState execute(ClusterState currentState) throws Exception {
            Index createdIndex = null;
            String removalExtraInfo = null;
            IndexRemovalReason removalReason = IndexRemovalReason.FAILURE;
            try {
                validate(request, currentState);
                for (Alias alias : request.aliases()) {
                    aliasValidator.validateAlias(alias, request.index(), currentState.metaData());
                }
                // we only find a template when its an API call (a new index)
                // find templates, highest order are better matching
                List<IndexTemplateMetaData> templates = findTemplates(request, currentState);
                Map<String, Custom> customs = new HashMap<>();
                // add the request mapping
                Map<String, Map<String, Object>> mappings = new HashMap<>();
                Map<String, AliasMetaData> templatesAliases = new HashMap<>();
                List<String> templateNames = new ArrayList<>();
                for (Map.Entry<String, String> entry : request.mappings().entrySet()) {
                    mappings.put(entry.getKey(), MapperService.parseMapping(xContentRegistry, entry.getValue()));
                }
                for (Map.Entry<String, Custom> entry : request.customs().entrySet()) {
                    customs.put(entry.getKey(), entry.getValue());
                }
                // apply templates, merging the mappings into the request mapping if exists
                for (IndexTemplateMetaData template : templates) {
                    templateNames.add(template.getName());
                    for (ObjectObjectCursor<String, CompressedXContent> cursor : template.mappings()) {
                        String mappingString = cursor.value.string();
                        if (mappings.containsKey(cursor.key)) {
                            XContentHelper.mergeDefaults(mappings.get(cursor.key), MapperService.parseMapping(xContentRegistry, mappingString));
                        } else {
                            mappings.put(cursor.key, MapperService.parseMapping(xContentRegistry, mappingString));
                        }
                    }
                    // handle custom
                    for (ObjectObjectCursor<String, Custom> cursor : template.customs()) {
                        String type = cursor.key;
                        IndexMetaData.Custom custom = cursor.value;
                        IndexMetaData.Custom existing = customs.get(type);
                        if (existing == null) {
                            customs.put(type, custom);
                        } else {
                            IndexMetaData.Custom merged = existing.mergeWith(custom);
                            customs.put(type, merged);
                        }
                    }
                    //handle aliases
                    for (ObjectObjectCursor<String, AliasMetaData> cursor : template.aliases()) {
                        AliasMetaData aliasMetaData = cursor.value;
                        // ignore this one taken from the index template
                        if (request.aliases().contains(new Alias(aliasMetaData.alias()))) {
                            continue;
                        }
                        //if an alias with same name was already processed, ignore this one
                        if (templatesAliases.containsKey(cursor.key)) {
                            continue;
                        }
                        //Allow templatesAliases to be templated by replacing a token with the name of the index that we are applying it to
                        if (aliasMetaData.alias().contains("{index}")) {
                            String templatedAlias = aliasMetaData.alias().replace("{index}", request.index());
                            aliasMetaData = AliasMetaData.newAliasMetaData(aliasMetaData, templatedAlias);
                        }
                        aliasValidator.validateAliasMetaData(aliasMetaData, request.index(), currentState.metaData());
                        templatesAliases.put(aliasMetaData.alias(), aliasMetaData);
                    }
                }
                Settings.Builder indexSettingsBuilder = Settings.builder();
                // apply templates, here, in reverse order, since first ones are better matching
                for (int i = templates.size() - 1; i >= 0; i--) {
                    indexSettingsBuilder.put(templates.get(i).settings());
                }
                // now, put the request settings, so they override templates
                indexSettingsBuilder.put(request.settings());
                if (indexSettingsBuilder.get(SETTING_NUMBER_OF_SHARDS) == null) {
                    indexSettingsBuilder.put(SETTING_NUMBER_OF_SHARDS, settings.getAsInt(SETTING_NUMBER_OF_SHARDS, 5));
                }
                if (indexSettingsBuilder.get(SETTING_NUMBER_OF_REPLICAS) == null) {
                    indexSettingsBuilder.put(SETTING_NUMBER_OF_REPLICAS, settings.getAsInt(SETTING_NUMBER_OF_REPLICAS, 1));
                }
                if (settings.get(SETTING_AUTO_EXPAND_REPLICAS) != null && indexSettingsBuilder.get(SETTING_AUTO_EXPAND_REPLICAS) == null) {
                    indexSettingsBuilder.put(SETTING_AUTO_EXPAND_REPLICAS, settings.get(SETTING_AUTO_EXPAND_REPLICAS));
                }
                if (indexSettingsBuilder.get(SETTING_VERSION_CREATED) == null) {
                    DiscoveryNodes nodes = currentState.nodes();
                    final Version createdVersion = Version.min(Version.CURRENT, nodes.getSmallestNonClientNodeVersion());
                    indexSettingsBuilder.put(SETTING_VERSION_CREATED, createdVersion);
                }
                if (indexSettingsBuilder.get(SETTING_CREATION_DATE) == null) {
                    indexSettingsBuilder.put(SETTING_CREATION_DATE, new DateTime(DateTimeZone.UTC).getMillis());
                }
                indexSettingsBuilder.put(IndexMetaData.SETTING_INDEX_PROVIDED_NAME, request.getProvidedName());
                indexSettingsBuilder.put(SETTING_INDEX_UUID, UUIDs.randomBase64UUID());
                final Index shrinkFromIndex = request.shrinkFrom();
                int routingNumShards = IndexMetaData.INDEX_NUMBER_OF_SHARDS_SETTING.get(indexSettingsBuilder.build());
                ;
                if (shrinkFromIndex != null) {
                    prepareShrinkIndexSettings(currentState, mappings.keySet(), indexSettingsBuilder, shrinkFromIndex, request.index());
                    IndexMetaData sourceMetaData = currentState.metaData().getIndexSafe(shrinkFromIndex);
                    routingNumShards = sourceMetaData.getRoutingNumShards();
                }
                Settings actualIndexSettings = indexSettingsBuilder.build();
                IndexMetaData.Builder tmpImdBuilder = IndexMetaData.builder(request.index()).setRoutingNumShards(routingNumShards);
                // Set up everything, now locally create the index to see that things are ok, and apply
                final IndexMetaData tmpImd = tmpImdBuilder.settings(actualIndexSettings).build();
                ActiveShardCount waitForActiveShards = request.waitForActiveShards();
                if (waitForActiveShards == ActiveShardCount.DEFAULT) {
                    waitForActiveShards = tmpImd.getWaitForActiveShards();
                }
                if (waitForActiveShards.validate(tmpImd.getNumberOfReplicas()) == false) {
                    throw new IllegalArgumentException("invalid wait_for_active_shards[" + request.waitForActiveShards() + "]: cannot be greater than number of shard copies [" + (tmpImd.getNumberOfReplicas() + 1) + "]");
                }
                // create the index here (on the master) to validate it can be created, as well as adding the mapping
                final IndexService indexService = indicesService.createIndex(tmpImd, Collections.emptyList(), shardId -> {
                });
                createdIndex = indexService.index();
                // now add the mappings
                MapperService mapperService = indexService.mapperService();
                try {
                    mapperService.merge(mappings, MergeReason.MAPPING_UPDATE, request.updateAllTypes());
                } catch (Exception e) {
                    removalExtraInfo = "failed on parsing default mapping/mappings on index creation";
                    throw e;
                }
                // the context is only used for validation so it's fine to pass fake values for the shard id and the current
                // timestamp
                final QueryShardContext queryShardContext = indexService.newQueryShardContext(0, null, () -> 0L);
                for (Alias alias : request.aliases()) {
                    if (Strings.hasLength(alias.filter())) {
                        aliasValidator.validateAliasFilter(alias.name(), alias.filter(), queryShardContext, xContentRegistry);
                    }
                }
                for (AliasMetaData aliasMetaData : templatesAliases.values()) {
                    if (aliasMetaData.filter() != null) {
                        aliasValidator.validateAliasFilter(aliasMetaData.alias(), aliasMetaData.filter().uncompressed(), queryShardContext, xContentRegistry);
                    }
                }
                // now, update the mappings with the actual source
                Map<String, MappingMetaData> mappingsMetaData = new HashMap<>();
                for (DocumentMapper mapper : mapperService.docMappers(true)) {
                    MappingMetaData mappingMd = new MappingMetaData(mapper);
                    mappingsMetaData.put(mapper.type(), mappingMd);
                }
                final IndexMetaData.Builder indexMetaDataBuilder = IndexMetaData.builder(request.index()).settings(actualIndexSettings).setRoutingNumShards(routingNumShards);
                for (MappingMetaData mappingMd : mappingsMetaData.values()) {
                    indexMetaDataBuilder.putMapping(mappingMd);
                }
                for (AliasMetaData aliasMetaData : templatesAliases.values()) {
                    indexMetaDataBuilder.putAlias(aliasMetaData);
                }
                for (Alias alias : request.aliases()) {
                    AliasMetaData aliasMetaData = AliasMetaData.builder(alias.name()).filter(alias.filter()).indexRouting(alias.indexRouting()).searchRouting(alias.searchRouting()).build();
                    indexMetaDataBuilder.putAlias(aliasMetaData);
                }
                for (Map.Entry<String, Custom> customEntry : customs.entrySet()) {
                    indexMetaDataBuilder.putCustom(customEntry.getKey(), customEntry.getValue());
                }
                indexMetaDataBuilder.state(request.state());
                final IndexMetaData indexMetaData;
                try {
                    indexMetaData = indexMetaDataBuilder.build();
                } catch (Exception e) {
                    removalExtraInfo = "failed to build index metadata";
                    throw e;
                }
                indexService.getIndexEventListener().beforeIndexAddedToCluster(indexMetaData.getIndex(), indexMetaData.getSettings());
                MetaData newMetaData = MetaData.builder(currentState.metaData()).put(indexMetaData, false).build();
                String maybeShadowIndicator = indexMetaData.isIndexUsingShadowReplicas() ? "s" : "";
                logger.info("[{}] creating index, cause [{}], templates {}, shards [{}]/[{}{}], mappings {}", request.index(), request.cause(), templateNames, indexMetaData.getNumberOfShards(), indexMetaData.getNumberOfReplicas(), maybeShadowIndicator, mappings.keySet());
                ClusterBlocks.Builder blocks = ClusterBlocks.builder().blocks(currentState.blocks());
                if (!request.blocks().isEmpty()) {
                    for (ClusterBlock block : request.blocks()) {
                        blocks.addIndexBlock(request.index(), block);
                    }
                }
                blocks.updateBlocks(indexMetaData);
                ClusterState updatedState = ClusterState.builder(currentState).blocks(blocks).metaData(newMetaData).build();
                if (request.state() == State.OPEN) {
                    RoutingTable.Builder routingTableBuilder = RoutingTable.builder(updatedState.routingTable()).addAsNew(updatedState.metaData().index(request.index()));
                    updatedState = allocationService.reroute(ClusterState.builder(updatedState).routingTable(routingTableBuilder.build()).build(), "index [" + request.index() + "] created");
                }
                removalExtraInfo = "cleaning up after validating index on master";
                removalReason = IndexRemovalReason.NO_LONGER_ASSIGNED;
                return updatedState;
            } finally {
                if (createdIndex != null) {
                    // Index was already partially created - need to clean up
                    indicesService.removeIndex(createdIndex, removalReason, removalExtraInfo);
                }
            }
        }

        @Override
        public void onFailure(String source, Exception e) {
            if (e instanceof ResourceAlreadyExistsException) {
                logger.trace((Supplier<?>) () -> new ParameterizedMessage("[{}] failed to create", request.index()), e);
            } else {
                logger.debug((Supplier<?>) () -> new ParameterizedMessage("[{}] failed to create", request.index()), e);
            }
            super.onFailure(source, e);
        }
    });
}