Merge branch 'master' into ccr

* master: (25 commits)
  Disable bwc tests in preparation of backporting #26931
  TemplateUpgradeService should only run on the master (#27294)
  Die with dignity while merging
  Fix profiling naming issues (#27133)
  Correctly encode warning headers
  Fixed references to Multi Index Syntax (#27283)
  Add an active Elasticsearch WordPress plugin link (#27279)
  Setting url parts as required to reflect the code base (#27263)
  keys in aggs percentiles need to be in quotes. (#26905)
  Align routing param type with search.json (#26958)
  Update to support bulk updates by query (#27172)
  Remove duplicated SnapshotStatus (#27276)
  add split index reference in indices.asciidoc
  Add ability to split shards (#26931)
  [Docs] Fix minor paragraph indentation error for multiple Indices params (#25535)
  Upgrade to Jackson 2.8.10 (#27230)
  Fix inconsistencies in the rest api specs for `tasks` (#27163)
  Adjust RestHighLevelClient method modifiers (#27238)
  Remove unused parameters in AnalysisRegistry (#27232)
  Add more information on `_failed_to_convert_` exception (#27034)
  ...

build.gradle

@@ -186,7 +186,7 @@ task verifyVersions {
  * after the backport of the backcompat code is complete.
  */
 allprojects {
-  ext.bwc_tests_enabled = true
+  ext.bwc_tests_enabled = false
 }
 
 task verifyBwcTestsEnabled {

buildSrc/version.properties

@@ -5,8 +5,8 @@ lucene            = 7.1.0
 # optional dependencies
 spatial4j         = 0.6
 jts               = 1.13
-jackson           = 2.8.6
-snakeyaml         = 1.15
+jackson           = 2.8.10
+snakeyaml         = 1.17
 # when updating log4j, please update also docs/java-api/index.asciidoc
 log4j             = 2.9.1
 slf4j             = 1.6.2

client/sniffer/licenses/jackson-core-2.8.10.jar.sha1

@@ -0,0 +1 @@
+eb21a035c66ad307e66ec8fce37f5d50fd62d039

core/licenses/jackson-core-2.8.10.jar.sha1

@@ -0,0 +1 @@
+eb21a035c66ad307e66ec8fce37f5d50fd62d039

core/licenses/jackson-dataformat-cbor-2.8.10.jar.sha1

@@ -0,0 +1 @@
+1c58cc9313ddf19f0900cd61ed044874278ce320

core/licenses/jackson-dataformat-smile-2.8.10.jar.sha1

@@ -0,0 +1 @@
+e853081fadaad3e98ed801937acc3d8f77580686

core/licenses/jackson-dataformat-yaml-2.8.10.jar.sha1

@@ -0,0 +1 @@
+1e08caf1d787c825307d8cc6362452086020d853

core/licenses/snakeyaml-1.17.jar.sha1

@@ -0,0 +1 @@
+7a27ea250c5130b2922b86dea63cbb1cc10a660c

core/src/main/java/org/elasticsearch/action/ActionModule.java

@@ -128,7 +128,9 @@
 import org.elasticsearch.action.admin.indices.settings.put.UpdateSettingsAction;
 import org.elasticsearch.action.admin.indices.shards.IndicesShardStoresAction;
 import org.elasticsearch.action.admin.indices.shards.TransportIndicesShardStoresAction;
+import org.elasticsearch.action.admin.indices.shrink.ResizeAction;
 import org.elasticsearch.action.admin.indices.shrink.ShrinkAction;
+import org.elasticsearch.action.admin.indices.shrink.TransportResizeAction;
 import org.elasticsearch.action.admin.indices.shrink.TransportShrinkAction;
 import org.elasticsearch.action.admin.indices.stats.IndicesStatsAction;
 import org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction;
@@ -181,7 +183,6 @@
 import org.elasticsearch.action.search.TransportMultiSearchAction;
 import org.elasticsearch.action.search.TransportSearchAction;
 import org.elasticsearch.action.search.TransportSearchScrollAction;
-import org.elasticsearch.action.support.ActionFilter;
 import org.elasticsearch.action.support.ActionFilters;
 import org.elasticsearch.action.support.AutoCreateIndex;
 import org.elasticsearch.action.support.DestructiveOperations;
@@ -199,7 +200,6 @@
 import org.elasticsearch.common.NamedRegistry;
 import org.elasticsearch.common.inject.AbstractModule;
 import org.elasticsearch.common.inject.multibindings.MapBinder;
-import org.elasticsearch.common.inject.multibindings.Multibinder;
 import org.elasticsearch.common.logging.ESLoggerFactory;
 import org.elasticsearch.common.settings.ClusterSettings;
 import org.elasticsearch.common.settings.IndexScopedSettings;
@@ -271,6 +271,7 @@
 import org.elasticsearch.rest.action.admin.indices.RestRefreshAction;
 import org.elasticsearch.rest.action.admin.indices.RestRolloverIndexAction;
 import org.elasticsearch.rest.action.admin.indices.RestShrinkIndexAction;
+import org.elasticsearch.rest.action.admin.indices.RestSplitIndexAction;
 import org.elasticsearch.rest.action.admin.indices.RestSyncedFlushAction;
 import org.elasticsearch.rest.action.admin.indices.RestUpdateSettingsAction;
 import org.elasticsearch.rest.action.admin.indices.RestUpgradeAction;
@@ -324,7 +325,6 @@
 import java.util.function.UnaryOperator;
 import java.util.stream.Collectors;
 
-import static java.util.Collections.unmodifiableList;
 import static java.util.Collections.unmodifiableMap;
 
 /**
@@ -438,6 +438,7 @@ public <Request extends ActionRequest, Response extends ActionResponse> void reg
         actions.register(IndicesShardStoresAction.INSTANCE, TransportIndicesShardStoresAction.class);
         actions.register(CreateIndexAction.INSTANCE, TransportCreateIndexAction.class);
         actions.register(ShrinkAction.INSTANCE, TransportShrinkAction.class);
+        actions.register(ResizeAction.INSTANCE, TransportResizeAction.class);
         actions.register(RolloverAction.INSTANCE, TransportRolloverAction.class);
         actions.register(DeleteIndexAction.INSTANCE, TransportDeleteIndexAction.class);
         actions.register(GetIndexAction.INSTANCE, TransportGetIndexAction.class);
@@ -554,6 +555,7 @@ public void initRestHandlers(Supplier<DiscoveryNodes> nodesInCluster) {
         registerHandler.accept(new RestIndicesAliasesAction(settings, restController));
         registerHandler.accept(new RestCreateIndexAction(settings, restController));
         registerHandler.accept(new RestShrinkIndexAction(settings, restController));
+        registerHandler.accept(new RestSplitIndexAction(settings, restController));
         registerHandler.accept(new RestRolloverIndexAction(settings, restController));
         registerHandler.accept(new RestDeleteIndexAction(settings, restController));
         registerHandler.accept(new RestCloseIndexAction(settings, restController));

core/src/main/java/org/elasticsearch/action/admin/indices/create/CreateIndexClusterStateUpdateRequest.java

@@ -20,6 +20,7 @@
 package org.elasticsearch.action.admin.indices.create;
 
 import org.elasticsearch.action.admin.indices.alias.Alias;
+import org.elasticsearch.action.admin.indices.shrink.ResizeType;
 import org.elasticsearch.action.support.ActiveShardCount;
 import org.elasticsearch.cluster.ack.ClusterStateUpdateRequest;
 import org.elasticsearch.cluster.block.ClusterBlock;
@@ -43,7 +44,8 @@ public class CreateIndexClusterStateUpdateRequest extends ClusterStateUpdateRequ
     private final String index;
     private final String providedName;
     private final boolean updateAllTypes;
-    private Index shrinkFrom;
+    private Index recoverFrom;
+    private ResizeType resizeType;
 
     private IndexMetaData.State state = IndexMetaData.State.OPEN;
 
@@ -59,7 +61,6 @@ public class CreateIndexClusterStateUpdateRequest extends ClusterStateUpdateRequ
 
     private ActiveShardCount waitForActiveShards = ActiveShardCount.DEFAULT;
 
-
     public CreateIndexClusterStateUpdateRequest(TransportMessage originalMessage, String cause, String index, String providedName,
                                                 boolean updateAllTypes) {
         this.originalMessage = originalMessage;
@@ -99,8 +100,8 @@ public CreateIndexClusterStateUpdateRequest state(IndexMetaData.State state) {
         return this;
     }
 
-    public CreateIndexClusterStateUpdateRequest shrinkFrom(Index shrinkFrom) {
-        this.shrinkFrom = shrinkFrom;
+    public CreateIndexClusterStateUpdateRequest recoverFrom(Index recoverFrom) {
+        this.recoverFrom = recoverFrom;
         return this;
     }
 
@@ -109,6 +110,11 @@ public CreateIndexClusterStateUpdateRequest waitForActiveShards(ActiveShardCount
         return this;
     }
 
+    public CreateIndexClusterStateUpdateRequest resizeType(ResizeType resizeType) {
+        this.resizeType = resizeType;
+        return this;
+    }
+
     public TransportMessage originalMessage() {
         return originalMessage;
     }
@@ -145,8 +151,8 @@ public Set<ClusterBlock> blocks() {
         return blocks;
     }
 
-    public Index shrinkFrom() {
-        return shrinkFrom;
+    public Index recoverFrom() {
+        return recoverFrom;
     }
 
     /** True if all fields that span multiple types should be updated, false otherwise */
@@ -165,4 +171,11 @@ public String getProvidedName() {
     public ActiveShardCount waitForActiveShards() {
         return waitForActiveShards;
     }
+
+    /**
+     * Returns the resize type or null if this is an ordinary create index request
+     */
+    public ResizeType resizeType() {
+        return resizeType;
+    }
 }

core/src/main/java/org/elasticsearch/action/admin/indices/rollover/Condition.java

@@ -19,8 +19,10 @@
 
 package org.elasticsearch.action.admin.indices.rollover;
 
+import org.elasticsearch.Version;
 import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.io.stream.NamedWriteable;
+import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.common.xcontent.ObjectParser;
 
@@ -38,6 +40,9 @@ public abstract class Condition<T> implements NamedWriteable {
             new ParseField(MaxAgeCondition.NAME));
         PARSER.declareLong((conditions, value) ->
             conditions.add(new MaxDocsCondition(value)), new ParseField(MaxDocsCondition.NAME));
+        PARSER.declareString((conditions, s) ->
+                conditions.add(new MaxSizeCondition(ByteSizeValue.parseBytesSizeValue(s, MaxSizeCondition.NAME))),
+            new ParseField(MaxSizeCondition.NAME));
     }
 
     protected T value;
@@ -49,6 +54,14 @@ protected Condition(String name) {
 
     public abstract Result evaluate(Stats stats);
 
+    /**
+     * Checks if this condition is available in a specific version.
+     * This makes sure BWC when introducing a new condition which is not recognized by older versions.
+     */
+    boolean includedInVersion(Version version) {
+        return true;
+    }
+
     @Override
     public final String toString() {
         return "[" + name + ": " + value + "]";
@@ -60,10 +73,12 @@ public final String toString() {
     public static class Stats {
         public final long numDocs;
         public final long indexCreated;
+        public final ByteSizeValue indexSize;
 
-        public Stats(long numDocs, long indexCreated) {
+        public Stats(long numDocs, long indexCreated, ByteSizeValue indexSize) {
             this.numDocs = numDocs;
             this.indexCreated = indexCreated;
+            this.indexSize = indexSize;
         }
     }
 

core/src/main/java/org/elasticsearch/action/admin/indices/rollover/MaxSizeCondition.java

@@ -0,0 +1,66 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.elasticsearch.action.admin.indices.rollover;
+
+import org.elasticsearch.Version;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.common.unit.ByteSizeUnit;
+import org.elasticsearch.common.unit.ByteSizeValue;
+
+import java.io.IOException;
+
+/**
+ * A size-based condition for an index size.
+ * Evaluates to <code>true</code> if the index size is at least {@link #value}.
+ */
+public class MaxSizeCondition extends Condition<ByteSizeValue> {
+    public static final String NAME = "max_size";
+
+    public MaxSizeCondition(ByteSizeValue value) {
+        super(NAME);
+        this.value = value;
+    }
+
+    public MaxSizeCondition(StreamInput in) throws IOException {
+        super(NAME);
+        this.value = new ByteSizeValue(in.readVLong(), ByteSizeUnit.BYTES);
+    }
+
+    @Override
+    public Result evaluate(Stats stats) {
+        return new Result(this, stats.indexSize.getBytes() >= value.getBytes());
+    }
+
+    @Override
+    boolean includedInVersion(Version version) {
+        return version.onOrAfter(Version.V_6_1_0);
+    }
+
+    @Override
+    public String getWriteableName() {
+        return NAME;
+    }
+
+    @Override
+    public void writeTo(StreamOutput out) throws IOException {
+        out.writeVLong(value.getBytes());
+    }
+}

core/src/main/java/org/elasticsearch/action/admin/indices/rollover/RolloverRequest.java

@@ -27,6 +27,7 @@
 import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
+import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.common.xcontent.ObjectParser;
 
@@ -106,7 +107,9 @@ public void writeTo(StreamOutput out) throws IOException {
         out.writeBoolean(dryRun);
         out.writeVInt(conditions.size());
         for (Condition condition : conditions) {
-            out.writeNamedWriteable(condition);
+            if (condition.includedInVersion(out.getVersion())) {
+                out.writeNamedWriteable(condition);
+            }
         }
         createIndexRequest.writeTo(out);
     }
@@ -155,6 +158,13 @@ public void addMaxIndexDocsCondition(long numDocs) {
         this.conditions.add(new MaxDocsCondition(numDocs));
     }
 
+    /**
+     * Adds a size-based condition to check if the index size is at least <code>size</code>.
+     */
+    public void addMaxIndexSizeCondition(ByteSizeValue size) {
+        this.conditions.add(new MaxSizeCondition(size));
+    }
+
     /**
      * Sets rollover index creation request to override index settings when
      * the rolled over index has to be created

core/src/main/java/org/elasticsearch/action/admin/indices/rollover/RolloverRequestBuilder.java

@@ -23,6 +23,7 @@
 import org.elasticsearch.action.support.master.MasterNodeOperationRequestBuilder;
 import org.elasticsearch.client.ElasticsearchClient;
 import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.unit.TimeValue;
 
 
@@ -52,6 +53,11 @@ public RolloverRequestBuilder addMaxIndexDocsCondition(long docs) {
         return this;
     }
 
+    public RolloverRequestBuilder addMaxIndexSizeCondition(ByteSizeValue size){
+        this.request.addMaxIndexSizeCondition(size);
+        return this;
+    }
+
     public RolloverRequestBuilder dryRun(boolean dryRun) {
         this.request.dryRun(dryRun);
         return this;

core/src/main/java/org/elasticsearch/action/admin/indices/rollover/TransportRolloverAction.java

@@ -43,6 +43,7 @@
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.inject.Inject;
 import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.index.shard.DocsStats;
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.transport.TransportService;
@@ -195,7 +196,8 @@ static String generateRolloverIndexName(String sourceIndexName, IndexNameExpress
     static Set<Condition.Result> evaluateConditions(final Set<Condition> conditions,
                                                     final DocsStats docsStats, final IndexMetaData metaData) {
         final long numDocs = docsStats == null ? 0 : docsStats.getCount();
-        final Condition.Stats stats = new Condition.Stats(numDocs, metaData.getCreationDate());
+        final long indexSize = docsStats == null ? 0 : docsStats.getTotalSizeInBytes();
+        final Condition.Stats stats = new Condition.Stats(numDocs, metaData.getCreationDate(), new ByteSizeValue(indexSize));
         return conditions.stream()
             .map(condition -> condition.evaluate(stats))
             .collect(Collectors.toSet());