Merge branch 'main' into optimization/st_extent

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchJavaPlugin.java

@@ -31,11 +31,15 @@
 import org.gradle.api.tasks.bundling.Jar;
 import org.gradle.api.tasks.javadoc.Javadoc;
 import org.gradle.external.javadoc.CoreJavadocOptions;
+import org.gradle.jvm.toolchain.JavaLanguageVersion;
+import org.gradle.jvm.toolchain.JavaToolchainService;
 import org.gradle.language.base.plugins.LifecycleBasePlugin;
 
 import java.io.File;
 import java.util.Map;
 
+import javax.inject.Inject;
+
 import static org.elasticsearch.gradle.internal.conventions.util.Util.toStringable;
 import static org.elasticsearch.gradle.internal.util.ParamsUtils.loadBuildParams;
 
@@ -44,6 +48,14 @@
  * common configuration for production code.
  */
 public class ElasticsearchJavaPlugin implements Plugin<Project> {
+
+    private final JavaToolchainService javaToolchains;
+
+    @Inject
+    ElasticsearchJavaPlugin(JavaToolchainService javaToolchains) {
+        this.javaToolchains = javaToolchains;
+    }
+
     @Override
     public void apply(Project project) {
         project.getRootProject().getPlugins().apply(GlobalBuildInfoPlugin.class);
@@ -55,7 +67,7 @@ public void apply(Project project) {
         // configureConfigurations(project);
         configureJars(project, buildParams.get());
         configureJarManifest(project, buildParams.get());
-        configureJavadoc(project);
+        configureJavadoc(project, buildParams.get());
         testCompileOnlyDeps(project);
     }
 
@@ -128,14 +140,18 @@ private static void configureJarManifest(Project project, BuildParameterExtensio
         project.getPluginManager().apply("nebula.info-jar");
     }
 
-    private static void configureJavadoc(Project project) {
+    private void configureJavadoc(Project project, BuildParameterExtension buildParams) {
         project.getTasks().withType(Javadoc.class).configureEach(javadoc -> {
             /*
              * Generate docs using html5 to suppress a warning from `javadoc`
              * that the default will change to html5 in the future.
              */
             CoreJavadocOptions javadocOptions = (CoreJavadocOptions) javadoc.getOptions();
             javadocOptions.addBooleanOption("html5", true);
+
+            javadoc.getJavadocTool().set(javaToolchains.javadocToolFor(spec -> {
+                spec.getLanguageVersion().set(JavaLanguageVersion.of(buildParams.getMinimumRuntimeVersion().getMajorVersion()));
+            }));
         });
 
         TaskProvider<Javadoc> javadoc = project.getTasks().withType(Javadoc.class).named("javadoc");

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/InternalDistributionBwcSetupPlugin.java

@@ -17,12 +17,12 @@
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradle.api.Task;
+import org.gradle.api.file.FileSystemOperations;
 import org.gradle.api.file.ProjectLayout;
 import org.gradle.api.model.ObjectFactory;
 import org.gradle.api.plugins.JvmToolchainsPlugin;
 import org.gradle.api.provider.Provider;
 import org.gradle.api.provider.ProviderFactory;
-import org.gradle.api.tasks.Copy;
 import org.gradle.api.tasks.PathSensitivity;
 import org.gradle.api.tasks.TaskProvider;
 import org.gradle.jvm.toolchain.JavaToolchainService;
@@ -54,11 +54,17 @@ public class InternalDistributionBwcSetupPlugin implements Plugin<Project> {
     private final ObjectFactory objectFactory;
     private ProviderFactory providerFactory;
     private JavaToolchainService toolChainService;
+    private FileSystemOperations fileSystemOperations;
 
     @Inject
-    public InternalDistributionBwcSetupPlugin(ObjectFactory objectFactory, ProviderFactory providerFactory) {
+    public InternalDistributionBwcSetupPlugin(
+        ObjectFactory objectFactory,
+        ProviderFactory providerFactory,
+        FileSystemOperations fileSystemOperations
+    ) {
         this.objectFactory = objectFactory;
         this.providerFactory = providerFactory;
+        this.fileSystemOperations = fileSystemOperations;
     }
 
     @Override
@@ -76,7 +82,8 @@ public void apply(Project project) {
                 providerFactory,
                 objectFactory,
                 toolChainService,
-                isCi
+                isCi,
+                fileSystemOperations
             );
         });
     }
@@ -88,7 +95,8 @@ private static void configureBwcProject(
         ProviderFactory providerFactory,
         ObjectFactory objectFactory,
         JavaToolchainService toolChainService,
-        Boolean isCi
+        Boolean isCi,
+        FileSystemOperations fileSystemOperations
     ) {
         ProjectLayout layout = project.getLayout();
         Provider<BwcVersions.UnreleasedVersionInfo> versionInfoProvider = providerFactory.provider(() -> versionInfo);
@@ -120,11 +128,18 @@ private static void configureBwcProject(
         List<DistributionProject> distributionProjects = resolveArchiveProjects(checkoutDir.get(), bwcVersion.get());
 
         // Setup gradle user home directory
-        project.getTasks().register("setupGradleUserHome", Copy.class, copy -> {
-            copy.into(project.getGradle().getGradleUserHomeDir().getAbsolutePath() + "-" + project.getName());
-            copy.from(project.getGradle().getGradleUserHomeDir().getAbsolutePath(), copySpec -> {
-                copySpec.include("gradle.properties");
-                copySpec.include("init.d/*");
+        // We don't use a normal `Copy` task here as snapshotting the entire gradle user home is very expensive. This task is cheap, so
+        // up-to-date checking doesn't buy us much
+        project.getTasks().register("setupGradleUserHome", task -> {
+            task.doLast(t -> {
+                fileSystemOperations.copy(copy -> {
+                    String gradleUserHome = project.getGradle().getGradleUserHomeDir().getAbsolutePath();
+                    copy.into(gradleUserHome + "-" + project.getName());
+                    copy.from(gradleUserHome, copySpec -> {
+                        copySpec.include("gradle.properties");
+                        copySpec.include("init.d/*");
+                    });
+                });
             });
         });
 

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/MrjarPlugin.java

@@ -86,14 +86,14 @@ public void apply(Project project) {
             configurePreviewFeatures(project, javaExtension.getSourceSets().getByName(SourceSet.TEST_SOURCE_SET_NAME), 21);
             for (int javaVersion : mainVersions) {
                 String mainSourceSetName = SourceSet.MAIN_SOURCE_SET_NAME + javaVersion;
-                SourceSet mainSourceSet = addSourceSet(project, javaExtension, mainSourceSetName, mainSourceSets, javaVersion);
+                SourceSet mainSourceSet = addSourceSet(project, javaExtension, mainSourceSetName, mainSourceSets, javaVersion, true);
                 configureSourceSetInJar(project, mainSourceSet, javaVersion);
                 addJar(project, mainSourceSet, javaVersion);
                 mainSourceSets.add(mainSourceSetName);
                 testSourceSets.add(mainSourceSetName);
 
                 String testSourceSetName = SourceSet.TEST_SOURCE_SET_NAME + javaVersion;
-                SourceSet testSourceSet = addSourceSet(project, javaExtension, testSourceSetName, testSourceSets, javaVersion);
+                SourceSet testSourceSet = addSourceSet(project, javaExtension, testSourceSetName, testSourceSets, javaVersion, false);
                 testSourceSets.add(testSourceSetName);
                 createTestTask(project, buildParams, testSourceSet, javaVersion, mainSourceSets);
             }
@@ -121,7 +121,8 @@ private SourceSet addSourceSet(
         JavaPluginExtension javaExtension,
         String sourceSetName,
         List<String> parentSourceSets,
-        int javaVersion
+        int javaVersion,
+        boolean isMainSourceSet
     ) {
         SourceSet sourceSet = javaExtension.getSourceSets().maybeCreate(sourceSetName);
         for (String parentSourceSetName : parentSourceSets) {
@@ -135,6 +136,13 @@ private SourceSet addSourceSet(
             CompileOptions compileOptions = compileTask.getOptions();
             compileOptions.getRelease().set(javaVersion);
         });
+        if (isMainSourceSet) {
+            project.getTasks().create(sourceSet.getJavadocTaskName(), Javadoc.class, javadocTask -> {
+                javadocTask.getJavadocTool().set(javaToolchains.javadocToolFor(spec -> {
+                    spec.getLanguageVersion().set(JavaLanguageVersion.of(javaVersion));
+                }));
+            });
+        }
         configurePreviewFeatures(project, sourceSet, javaVersion);
 
         // Since we configure MRJAR sourcesets to allow preview apis, class signatures for those

distribution/src/config/jvm.options

@@ -9,7 +9,7 @@
 ## should create one or more files in the jvm.options.d
 ## directory containing your adjustments.
 ##
-## See https://www.elastic.co/guide/en/elasticsearch/reference/@project.minor.version@/jvm-options.html
+## See https://www.elastic.co/guide/en/elasticsearch/reference/@project.minor.version@/advanced-configuration.html#set-jvm-options
 ## for more information.
 ##
 ################################################################

docs/build.gradle

@@ -130,8 +130,9 @@ testClusters.matching { it.name == "yamlRestTest"}.configureEach {
   setting 'xpack.security.enabled', 'true'
   setting 'xpack.security.authc.api_key.enabled', 'true'
   setting 'xpack.security.authc.token.enabled', 'true'
-  // disable the ILM history for doc tests to avoid potential lingering tasks that'd cause test flakiness
+  // disable the ILM and SLM history for doc tests to avoid potential lingering tasks that'd cause test flakiness
   setting 'indices.lifecycle.history_index_enabled', 'false'
+  setting 'slm.history_index_enabled', 'false'
   setting 'xpack.license.self_generated.type', 'trial'
   setting 'xpack.security.authc.realms.file.file.order', '0'
   setting 'xpack.security.authc.realms.native.native.order', '1'

docs/changelog/118585.yaml

@@ -0,0 +1,7 @@
+pr: 118585
+summary: Add a generic `rescorer` retriever based on the search request's rescore
+  functionality
+area: Ranking
+type: feature
+issues:
+ - 118327

docs/changelog/118823.yaml

@@ -0,0 +1,5 @@
+pr: 118823
+summary: Fix attribute set equals
+area: ES|QL
+type: bug
+issues: []

docs/changelog/116944.yaml → docs/changelog/118825.yaml

@@ -1,11 +1,11 @@
-pr: 116944
+pr: 118825
 summary: "Remove support for type, fields, `copy_to` and boost in metadata field definition"
 area: Mapping
 type: breaking
 issues: []
 breaking:
   title: "Remove support for type, fields, copy_to and boost in metadata field definition"
   area: Mapping
-  details: The type, fields, copy_to and boost parameters are no longer supported in metadata field definition
+  details: The type, fields, copy_to and boost parameters are no longer supported in metadata field definition starting with version 9.
   impact: Users providing type, fields, copy_to or boost as part of metadata field definition should remove them from their mappings.
   notable: false

docs/changelog/119007.yaml

@@ -0,0 +1,6 @@
+pr: 119007
+summary: Block-writes cannot be added after read-only
+area: Data streams
+type: bug
+issues:
+ - 119002

docs/reference/search/retriever.asciidoc

@@ -22,6 +22,9 @@ A <<standard-retriever, retriever>> that replaces the functionality of a traditi
 `knn`::
 A <<knn-retriever, retriever>> that replaces the functionality of a <<search-api-knn, knn search>>.
 
+`rescorer`::
+A <<rescorer-retriever, retriever>> that replaces the functionality of the <<rescore, query rescorer>>.
+
 `rrf`::
 A <<rrf-retriever, retriever>> that produces top documents from <<rrf, reciprocal rank fusion (RRF)>>.
 
@@ -371,6 +374,122 @@ GET movies/_search
 ----
 // TEST[skip:uses ELSER]
 
+[[rescorer-retriever]]
+==== Rescorer Retriever
+
+The `rescorer` retriever re-scores only the results produced by its child retriever.
+For the `standard` and `knn` retrievers, the `window_size` parameter specifies the number of documents examined per shard.
+
+For compound retrievers like `rrf`, the `window_size` parameter defines the total number of documents examined globally.
+
+When using the `rescorer`, an error is returned if the following conditions are not met:
+
+* The minimum configured rescore's `window_size` is:
+** Greater than or equal to the `size` of the parent retriever for nested `rescorer` setups.
+** Greater than or equal to the `size` of the search request when used as the primary retriever in the tree.
+
+* And the maximum rescore's `window_size` is:
+** Smaller than or equal to the `size` or `rank_window_size` of the child retriever.
+
+[discrete]
+[[rescorer-retriever-parameters]]
+===== Parameters
+
+`rescore`::
+(Required. <<rescore, A rescorer definition or an array of rescorer definitions>>)
++
+Defines the <<rescore, rescorers>> applied sequentially to the top documents returned by the child retriever.
+
+`retriever`::
+(Required. <<retriever, retriever>>)
++
+Specifies the child retriever responsible for generating the initial set of top documents to be re-ranked.
+
+`filter`::
+(Optional. <<query-dsl, query object or list of query objects>>)
++
+Applies a <<query-dsl-bool-query, boolean query filter>> to the retriever, ensuring that all documents match the filter criteria without affecting their scores.
+
+[discrete]
+[[rescorer-retriever-example]]
+==== Example
+
+The `rescorer` retriever can be placed at any level within the retriever tree.
+The following example demonstrates a `rescorer` applied to the results produced by an `rrf` retriever:
+
+[source,console]
+----
+GET movies/_search
+{
+  "size": 10, <1>
+  "retriever": {
+    "rescorer": { <2>
+      "rescore": {
+        "query": { <3>
+          "window_size": 50, <4>
+          "rescore_query": {
+            "script_score": {
+              "script": {
+                "source": "cosineSimilarity(params.queryVector, 'product-vector_final_stage') + 1.0",
+                "params": {
+                  "queryVector": [-0.5, 90.0, -10, 14.8, -156.0]
+                }
+              }
+            }
+          }
+        }
+      },
+      "retriever": { <5>
+        "rrf": {
+          "rank_window_size": 100, <6>
+          "retrievers": [
+            {
+              "standard": {
+                "query": {
+                  "sparse_vector": {
+                    "field": "plot_embedding",
+                    "inference_id": "my-elser-model",
+                    "query": "films that explore psychological depths"
+                  }
+                }
+              }
+            },
+            {
+              "standard": {
+                "query": {
+                  "multi_match": {
+                    "query": "crime",
+                    "fields": [
+                      "plot",
+                      "title"
+                    ]
+                  }
+                }
+              }
+            },
+            {
+              "knn": {
+                "field": "vector",
+                "query_vector": [10, 22, 77],
+                "k": 10,
+                "num_candidates": 10
+              }
+            }
+          ]
+        }
+      }
+    }
+  }
+}
+----
+// TEST[skip:uses ELSER]
+<1> Specifies the number of top documents to return in the final response.
+<2> A `rescorer` retriever applied as the final step.
+<3> The definition of the `query` rescorer.
+<4> Defines the number of documents to rescore from the child retriever.
+<5> Specifies the child retriever definition.
+<6> Defines the number of documents returned by the `rrf` retriever, which limits the available documents to
+
 [[text-similarity-reranker-retriever]]
 ==== Text Similarity Re-ranker Retriever
 
@@ -777,4 +896,4 @@ When a retriever is specified as part of a search, the following elements are no
 * <<search-after, `search_after`>>
 * <<request-body-search-terminate-after, `terminate_after`>>
 * <<search-sort-param, `sort`>>
-* <<rescore, `rescore`>>
+* <<rescore, `rescore`>> use a <<rescorer-retriever, rescorer retriever>> instead

libs/entitlement/bridge/src/main/java/org/elasticsearch/entitlement/bridge/EntitlementChecker.java

@@ -11,6 +11,7 @@
 
 import java.net.URL;
 import java.net.URLStreamHandlerFactory;
+import java.util.List;
 
 public interface EntitlementChecker {
 
@@ -29,4 +30,10 @@ public interface EntitlementChecker {
     void check$java_net_URLClassLoader$(Class<?> callerClass, String name, URL[] urls, ClassLoader parent);
 
     void check$java_net_URLClassLoader$(Class<?> callerClass, String name, URL[] urls, ClassLoader parent, URLStreamHandlerFactory factory);
+
+    // Process creation
+    void check$$start(Class<?> callerClass, ProcessBuilder that, ProcessBuilder.Redirect[] redirects);
+
+    void check$java_lang_ProcessBuilder$startPipeline(Class<?> callerClass, List<ProcessBuilder> builders);
+
 }