Examples with DiscoveryNodes org.elasticsearch.cluster.node.DiscoveryNodes used on opensource projects

Example 71 with DiscoveryNodes

use of org.elasticsearch.cluster.node.DiscoveryNodes in project crate by crate.

the class AsyncShardFetchTests method testFullCircleSingleNodeFailure.

public void testFullCircleSingleNodeFailure() throws Exception {
    DiscoveryNodes nodes = DiscoveryNodes.builder().add(node1).build();
    // add a failed response for node1
    test.addSimulation(node1.getId(), failure1);
    // first fetch, no data, still on going
    AsyncShardFetch.FetchResult<Response> fetchData = test.fetchData(nodes, emptySet());
    assertThat(fetchData.hasData(), equalTo(false));
    assertThat(test.reroute.get(), equalTo(0));
    // fire a response, wait on reroute incrementing
    test.fireSimulationAndWait(node1.getId());
    // failure, fetched data exists, but has no data
    assertThat(test.reroute.get(), equalTo(1));
    fetchData = test.fetchData(nodes, emptySet());
    assertThat(fetchData.hasData(), equalTo(true));
    assertThat(fetchData.getData().size(), equalTo(0));
    // on failure, we reset the failure on a successive call to fetchData, and try again afterwards
    test.addSimulation(node1.getId(), response1);
    fetchData = test.fetchData(nodes, emptySet());
    assertThat(fetchData.hasData(), equalTo(false));
    test.fireSimulationAndWait(node1.getId());
    // 2 reroutes, cause we have a failure that we clear
    assertThat(test.reroute.get(), equalTo(3));
    fetchData = test.fetchData(nodes, emptySet());
    assertThat(fetchData.hasData(), equalTo(true));
    assertThat(fetchData.getData().size(), equalTo(1));
    assertThat(fetchData.getData().get(node1), sameInstance(response1));
}

Example 72 with DiscoveryNodes

use of org.elasticsearch.cluster.node.DiscoveryNodes 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);
        }
    });
}

Example 73 with DiscoveryNodes

use of org.elasticsearch.cluster.node.DiscoveryNodes in project elasticsearch by elastic.

the class ClusterService method doStart.

@Override
protected synchronized void doStart() {
    Objects.requireNonNull(clusterStatePublisher, "please set a cluster state publisher before starting");
    Objects.requireNonNull(nodeConnectionsService, "please set the node connection service before starting");
    Objects.requireNonNull(discoverySettings, "please set discovery settings before starting");
    addListener(localNodeMasterListeners);
    DiscoveryNode localNode = localNodeSupplier.get();
    assert localNode != null;
    updateState(state -> {
        assert state.nodes().getLocalNodeId() == null : "local node is already set";
        DiscoveryNodes nodes = DiscoveryNodes.builder(state.nodes()).add(localNode).localNodeId(localNode.getId()).build();
        return ClusterState.builder(state).nodes(nodes).blocks(initialBlocks).build();
    });
    this.threadPoolExecutor = EsExecutors.newSinglePrioritizing(UPDATE_THREAD_NAME, daemonThreadFactory(settings, UPDATE_THREAD_NAME), threadPool.getThreadContext());
}

Example 74 with DiscoveryNodes

use of org.elasticsearch.cluster.node.DiscoveryNodes in project elasticsearch by elastic.

the class IndicesClusterStateService method updateShard.

private void updateShard(DiscoveryNodes nodes, ShardRouting shardRouting, Shard shard, RoutingTable routingTable, ClusterState clusterState) {
    final ShardRouting currentRoutingEntry = shard.routingEntry();
    assert currentRoutingEntry.isSameAllocation(shardRouting) : "local shard has a different allocation id but wasn't cleaning by removeShards. " + "cluster state: " + shardRouting + " local: " + currentRoutingEntry;
    try {
        shard.updateRoutingEntry(shardRouting);
        if (shardRouting.primary()) {
            IndexShardRoutingTable indexShardRoutingTable = routingTable.shardRoutingTable(shardRouting.shardId());
            Set<String> activeIds = indexShardRoutingTable.activeShards().stream().filter(sr -> nodes.get(sr.currentNodeId()).getVersion().onOrAfter(Version.V_6_0_0_alpha1_UNRELEASED)).map(r -> r.allocationId().getId()).collect(Collectors.toSet());
            Set<String> initializingIds = indexShardRoutingTable.getAllInitializingShards().stream().filter(sr -> nodes.get(sr.currentNodeId()).getVersion().onOrAfter(Version.V_6_0_0_alpha1_UNRELEASED)).map(r -> r.allocationId().getId()).collect(Collectors.toSet());
            shard.updateAllocationIdsFromMaster(activeIds, initializingIds);
        }
    } catch (Exception e) {
        failAndRemoveShard(shardRouting, true, "failed updating shard routing entry", e, clusterState);
        return;
    }
    final IndexShardState state = shard.state();
    if (shardRouting.initializing() && (state == IndexShardState.STARTED || state == IndexShardState.POST_RECOVERY)) {
        // we managed to tell the master we started), mark us as started
        if (logger.isTraceEnabled()) {
            logger.trace("{} master marked shard as initializing, but shard has state [{}], resending shard started to {}", shardRouting.shardId(), state, nodes.getMasterNode());
        }
        if (nodes.getMasterNode() != null) {
            shardStateAction.shardStarted(shardRouting, "master " + nodes.getMasterNode() + " marked shard as initializing, but shard state is [" + state + "], mark shard as started", SHARD_STATE_ACTION_LISTENER, clusterState);
        }
    }
}

Example 75 with DiscoveryNodes

use of org.elasticsearch.cluster.node.DiscoveryNodes in project elasticsearch by elastic.

the class TransportCancelTasksAction method taskOperation.

@Override
protected synchronized void taskOperation(CancelTasksRequest request, CancellableTask cancellableTask, ActionListener<TaskInfo> listener) {
    String nodeId = clusterService.localNode().getId();
    final boolean canceled;
    if (cancellableTask.shouldCancelChildrenOnCancellation()) {
        DiscoveryNodes childNodes = clusterService.state().nodes();
        final BanLock banLock = new BanLock(childNodes.getSize(), () -> removeBanOnNodes(cancellableTask, childNodes));
        canceled = taskManager.cancel(cancellableTask, request.getReason(), banLock::onTaskFinished);
        if (canceled) {
            // /In case the task has some child tasks, we need to wait for until ban is set on all nodes
            logger.trace("cancelling task {} on child nodes", cancellableTask.getId());
            AtomicInteger responses = new AtomicInteger(childNodes.getSize());
            List<Exception> failures = new ArrayList<>();
            setBanOnNodes(request.getReason(), cancellableTask, childNodes, new ActionListener<Void>() {

                @Override
                public void onResponse(Void aVoid) {
                    processResponse();
                }

                @Override
                public void onFailure(Exception e) {
                    synchronized (failures) {
                        failures.add(e);
                    }
                    processResponse();
                }

                private void processResponse() {
                    banLock.onBanSet();
                    if (responses.decrementAndGet() == 0) {
                        if (failures.isEmpty() == false) {
                            IllegalStateException exception = new IllegalStateException("failed to cancel children of the task [" + cancellableTask.getId() + "]");
                            failures.forEach(exception::addSuppressed);
                            listener.onFailure(exception);
                        } else {
                            listener.onResponse(cancellableTask.taskInfo(nodeId, false));
                        }
                    }
                }
            });
        }
    } else {
        canceled = taskManager.cancel(cancellableTask, request.getReason(), () -> listener.onResponse(cancellableTask.taskInfo(nodeId, false)));
        if (canceled) {
            logger.trace("task {} doesn't have any children that should be cancelled", cancellableTask.getId());
        }
    }
    if (canceled == false) {
        logger.trace("task {} is already cancelled", cancellableTask.getId());
        throw new IllegalStateException("task with id " + cancellableTask.getId() + " is already cancelled");
    }
}