Remove xpack actions for vector field (#75017)

We have already decided not to have xpack usage for field mappers
(see #53076). As mappings stats of all fields is already tracked
in cluster stats.
Moreover xpack usage for vector field is a quite expensive operation
(see #74974).

This removes xpack actions for vector field.

build.gradle

@@ -144,9 +144,9 @@ tasks.register("verifyVersions") {
  * after the backport of the backcompat code is complete.
  */
 
-boolean bwc_tests_enabled = true
+boolean bwc_tests_enabled = false
 // place a PR link here when committing bwc changes:
-String bwc_tests_disabled_issue = ""
+String bwc_tests_disabled_issue = "https://github.com/elastic/elasticsearch/pull/75017"
 /*
  * FIPS 140-2 behavior was fixed in 7.11.0. Before that there is no way to run elasticsearch in a
  * JVM that is properly configured to be in fips mode with BCFIPS. For now we need to disable

docs/reference/rest-api/info.asciidoc

@@ -142,10 +142,6 @@ Example response:
          "available" : true,
          "enabled" : true
       },
-      "vectors" : {
-         "available" : true,
-         "enabled" : true
-      },
       "voting_only" : {
          "available" : true,
          "enabled" : true

docs/reference/rest-api/usage.asciidoc

@@ -272,12 +272,6 @@ GET /_xpack/usage
     "available" : true,
     "enabled" : true
   },
-  "vectors" : {
-    "available" : true,
-    "enabled" : true,
-    "dense_vector_fields_count" : 0,
-    "dense_vector_dims_avg_count" : 0
-  },
   "voting_only" : {
     "available" : true,
     "enabled" : true

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/XPackClientPlugin.java

@@ -218,7 +218,6 @@
 import org.elasticsearch.xpack.core.transform.transforms.TimeSyncConfig;
 import org.elasticsearch.xpack.core.transform.transforms.TransformState;
 import org.elasticsearch.xpack.core.transform.transforms.TransformTaskParams;
-import org.elasticsearch.xpack.core.vectors.VectorsFeatureSetUsage;
 import org.elasticsearch.xpack.core.votingonly.VotingOnlyNodeFeatureSetUsage;
 import org.elasticsearch.xpack.core.watcher.WatcherFeatureSetUsage;
 import org.elasticsearch.xpack.core.watcher.WatcherMetadata;
@@ -516,8 +515,6 @@ public List<NamedWriteableRegistry.Entry> getNamedWriteables() {
                 TransformField.TIME.getPreferredName(),
                 TimeRetentionPolicyConfig::new
             ),
-            // Vectors
-            new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.VECTORS, VectorsFeatureSetUsage::new),
             // Voting Only Node
             new NamedWriteableRegistry.Entry(XPackFeatureSet.Usage.class, XPackField.VOTING_ONLY, VotingOnlyNodeFeatureSetUsage::new),
             // Frozen indices

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/XPackField.java

@@ -48,6 +48,7 @@ public final class XPackField {
      */
     @Deprecated
     public static final String FLATTENED = "flattened";
+    @Deprecated
     /** Name constant for the vectors feature. */
     public static final String VECTORS = "vectors";
     /** Name constant for the voting-only-node feature. */

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/action/XPackInfoFeatureAction.java

@@ -38,7 +38,6 @@ public class XPackInfoFeatureAction extends ActionType<XPackInfoFeatureResponse>
     public static final XPackInfoFeatureAction SNAPSHOT_LIFECYCLE = new XPackInfoFeatureAction(XPackField.SNAPSHOT_LIFECYCLE);
     public static final XPackInfoFeatureAction CCR = new XPackInfoFeatureAction(XPackField.CCR);
     public static final XPackInfoFeatureAction TRANSFORM = new XPackInfoFeatureAction(XPackField.TRANSFORM);
-    public static final XPackInfoFeatureAction VECTORS = new XPackInfoFeatureAction(XPackField.VECTORS);
     public static final XPackInfoFeatureAction VOTING_ONLY = new XPackInfoFeatureAction(XPackField.VOTING_ONLY);
     public static final XPackInfoFeatureAction FROZEN_INDICES = new XPackInfoFeatureAction(XPackField.FROZEN_INDICES);
     public static final XPackInfoFeatureAction SPATIAL = new XPackInfoFeatureAction(XPackField.SPATIAL);
@@ -54,7 +53,7 @@ public class XPackInfoFeatureAction extends ActionType<XPackInfoFeatureResponse>
         final List<XPackInfoFeatureAction> actions = new ArrayList<>();
         actions.addAll(Arrays.asList(
             SECURITY, MONITORING, WATCHER, GRAPH, MACHINE_LEARNING, LOGSTASH, EQL, SQL, ROLLUP, INDEX_LIFECYCLE, SNAPSHOT_LIFECYCLE, CCR,
-            TRANSFORM, VECTORS, VOTING_ONLY, FROZEN_INDICES, SPATIAL, ANALYTICS, ENRICH, DATA_STREAMS, SEARCHABLE_SNAPSHOTS, DATA_TIERS,
+            TRANSFORM, VOTING_ONLY, FROZEN_INDICES, SPATIAL, ANALYTICS, ENRICH, DATA_STREAMS, SEARCHABLE_SNAPSHOTS, DATA_TIERS,
             AGGREGATE_METRIC
         ));
         ALL = Collections.unmodifiableList(actions);

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/action/XPackUsageFeatureAction.java

@@ -35,7 +35,6 @@ public class XPackUsageFeatureAction extends ActionType<XPackUsageFeatureRespons
     public static final XPackUsageFeatureAction SNAPSHOT_LIFECYCLE = new XPackUsageFeatureAction(XPackField.SNAPSHOT_LIFECYCLE);
     public static final XPackUsageFeatureAction CCR = new XPackUsageFeatureAction(XPackField.CCR);
     public static final XPackUsageFeatureAction TRANSFORM = new XPackUsageFeatureAction(XPackField.TRANSFORM);
-    public static final XPackUsageFeatureAction VECTORS = new XPackUsageFeatureAction(XPackField.VECTORS);
     public static final XPackUsageFeatureAction VOTING_ONLY = new XPackUsageFeatureAction(XPackField.VOTING_ONLY);
     public static final XPackUsageFeatureAction FROZEN_INDICES = new XPackUsageFeatureAction(XPackField.FROZEN_INDICES);
     public static final XPackUsageFeatureAction SPATIAL = new XPackUsageFeatureAction(XPackField.SPATIAL);
@@ -66,7 +65,6 @@ public class XPackUsageFeatureAction extends ActionType<XPackUsageFeatureRespons
         SPATIAL,
         SQL,
         TRANSFORM,
-        VECTORS,
         VOTING_ONLY,
         WATCHER
     );

x-pack/plugin/security/qa/operator-privileges-tests/src/javaRestTest/java/org/elasticsearch/xpack/security/operator/Constants.java

@@ -277,7 +277,6 @@ public class Constants {
         "cluster:monitor/xpack/info/spatial",
         "cluster:monitor/xpack/info/sql",
         "cluster:monitor/xpack/info/transform",
-        "cluster:monitor/xpack/info/vectors",
         "cluster:monitor/xpack/info/voting_only",
         "cluster:monitor/xpack/info/watcher",
         "cluster:monitor/xpack/license/get",
@@ -331,7 +330,6 @@ public class Constants {
         "cluster:monitor/xpack/usage/spatial",
         "cluster:monitor/xpack/usage/sql",
         "cluster:monitor/xpack/usage/transform",
-        "cluster:monitor/xpack/usage/vectors",
         "cluster:monitor/xpack/usage/voting_only",
         "cluster:monitor/xpack/usage/watcher",
         "cluster:monitor/xpack/watcher/stats/dist",

x-pack/plugin/vectors/src/main/java/org/elasticsearch/xpack/vectors/Vectors.java

@@ -7,34 +7,20 @@
 
 package org.elasticsearch.xpack.vectors;
 
-import org.elasticsearch.action.ActionRequest;
-import org.elasticsearch.action.ActionResponse;
 import org.elasticsearch.index.mapper.Mapper;
-import org.elasticsearch.plugins.ActionPlugin;
 import org.elasticsearch.plugins.MapperPlugin;
 import org.elasticsearch.plugins.Plugin;
-import org.elasticsearch.xpack.core.action.XPackInfoFeatureAction;
-import org.elasticsearch.xpack.core.action.XPackUsageFeatureAction;
 import org.elasticsearch.xpack.vectors.mapper.DenseVectorFieldMapper;
 import org.elasticsearch.xpack.vectors.mapper.SparseVectorFieldMapper;
 
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.LinkedHashMap;
-import java.util.List;
 import java.util.Map;
 
-public class Vectors extends Plugin implements MapperPlugin, ActionPlugin {
+public class Vectors extends Plugin implements MapperPlugin {
 
     public Vectors() { }
 
-    @Override
-    public List<ActionPlugin.ActionHandler<? extends ActionRequest, ? extends ActionResponse>> getActions() {
-        return Arrays.asList(
-            new ActionPlugin.ActionHandler<>(XPackUsageFeatureAction.VECTORS, VectorsUsageTransportAction.class),
-            new ActionPlugin.ActionHandler<>(XPackInfoFeatureAction.VECTORS, VectorsInfoTransportAction.class));
-    }
-
     @Override
     public Map<String, Mapper.TypeParser> getMappers() {
         Map<String, Mapper.TypeParser> mappers = new LinkedHashMap<>();