Merge branch 'master' into translog-trimming

* master: (41 commits)
  Remove awaits fix from evil JNA native tests
  Correct handling of default and array settings
  Build: Switch jna dependency to an elastic version (elastic#24081)
  fix CategoryContextMappingTests compilation bugs
  testConcurrentGetAndSetOnPrimary - fix a race condition between indexing and updating value map
  Allow different data types for category in Context suggester (elastic#23491)
  Restrict build info loading to ES jar, not any jar (elastic#24049)
  Remove more hidden file leniency from plugins
  Register error listener in evil logger tests
  Detect using logging before configuration
  [DOCS] Added note about Elastic Cloud to improve 'elastic aws' SERP results.
  Add version constant for 5.5 (elastic#24075)
  Add unit tests for NestedAggregator (elastic#24054)
  Add more debugging information to rethrottles
  Tests: Use random analyzer only on string fields in Match/MultiMatchBuilderTests
  Cleanup outdated comments for fixing up pom dependencies (elastic#24056)
  S3 Repository: Eagerly load static settings (elastic#23910)
  Reject duplicate settings on the command line
  Wildcard cluster names for cross cluster search (elastic#23985)
  Update scripts/security docs for sandboxed world (elastic#23977)
  ...

Author: jasontedor

CONTRIBUTING.md

@@ -117,7 +117,7 @@ For Eclipse, go to `Preferences->Java->Installed JREs` and add `-ea` to
 Please follow these formatting guidelines:
 
 * Java indent is 4 spaces
-* Line width is 100 characters
+* Line width is 140 characters
 * The rest is left to Java coding standards
 * Disable “auto-format on save” to prevent unnecessary format changes. This makes reviews much harder as it generates unnecessary formatting changes. If your IDE supports formatting only modified chunks that is fine to do.
 * Wildcard imports (`import foo.bar.baz.*`) are forbidden and will cause the build to fail. Please attempt to tame your IDE so it doesn't make them and please send a PR against this document with instructions for your IDE if it doesn't contain them.

buildSrc/src/main/groovy/org/elasticsearch/gradle/BuildPlugin.groovy

@@ -311,16 +311,9 @@ class BuildPlugin implements Plugin<Project> {
     /**
      * Returns a closure which can be used with a MavenPom for fixing problems with gradle generated poms.
      *
-     * <ul>
-     *     <li>Remove transitive dependencies. We currently exclude all artifacts explicitly instead of using wildcards
-     *         as Ivy incorrectly translates POMs with * excludes to Ivy XML with * excludes which results in the main artifact
-     *         being excluded as well (see https://issues.apache.org/jira/browse/IVY-1531). Note that Gradle 2.14+ automatically
-     *         translates non-transitive dependencies to * excludes. We should revisit this when upgrading Gradle.</li>
-     *     <li>Set compile time deps back to compile from runtime (known issue with maven-publish plugin)</li>
-     * </ul>
+     * The current fixup is to set compile time deps back to compile from runtime (known issue with maven-publish plugin).
      */
     private static Closure fixupDependencies(Project project) {
-        // TODO: revisit this when upgrading to Gradle 2.14+, see Javadoc comment above
         return { XmlProvider xml ->
             // first find if we have dependencies at all, and grab the node
             NodeList depsNodes = xml.asNode().get('dependencies')

buildSrc/src/main/groovy/org/elasticsearch/gradle/plugin/PluginBuildPlugin.groovy

@@ -96,7 +96,7 @@ public class PluginBuildPlugin extends BuildPlugin {
             provided "com.vividsolutions:jts:${project.versions.jts}"
             provided "org.apache.logging.log4j:log4j-api:${project.versions.log4j}"
             provided "org.apache.logging.log4j:log4j-core:${project.versions.log4j}"
-            provided "net.java.dev.jna:jna:${project.versions.jna}"
+            provided "org.elasticsearch:jna:${project.versions.jna}"
         }
     }
 

buildSrc/src/main/resources/checkstyle.xml

@@ -22,7 +22,7 @@
       suppress the check there but enforce it everywhere else. This prevents the list from getting longer even if it is
       unfair. -->
     <module name="LineLength">
-      <property name="max" value="100"/>
+      <property name="max" value="140"/>
     </module>
 
     <module name="AvoidStarImport" />

buildSrc/src/main/resources/eclipse.settings/org.eclipse.jdt.core.prefs

@@ -16,6 +16,6 @@ eclipse.preferences.version=1
 # org.eclipse.jdt.core.compiler.problem.potentialNullReference=warning
 
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.formatter.lineSplit=100
+org.eclipse.jdt.core.formatter.lineSplit=140
 org.eclipse.jdt.core.formatter.tabulation.char=space
 org.eclipse.jdt.core.formatter.tabulation.size=4

core/build.gradle

@@ -86,7 +86,8 @@ dependencies {
   // to bridge dependencies that are still on Log4j 1 to Log4j 2
   compile "org.apache.logging.log4j:log4j-1.2-api:${versions.log4j}", optional
 
-  compile "net.java.dev.jna:jna:${versions.jna}"
+  // repackaged jna with native bits linked against all elastic supported platforms
+  compile "org.elasticsearch:jna:${versions.jna}"
 
   if (isEclipse == false || project.path == ":core-tests") {
     testCompile("org.elasticsearch.test:framework:${version}") {

core/licenses/jna-4.4.0.jar.sha1

@@ -1 +1 @@
-cb208278274bf12ebdb56c61bd7407e6f774d65a
+6edc9b4514969d768039acf43f04210b15658cd7

core/src/main/java/org/elasticsearch/Build.java

@@ -43,8 +43,10 @@ public class Build {
         final String date;
         final boolean isSnapshot;
 
+        final String esPrefix = "elasticsearch-" + Version.CURRENT;
         final URL url = getElasticsearchCodebase();
-        if (url.toString().endsWith(".jar")) {
+        final String urlStr = url.toString();
+        if (urlStr.startsWith("file:/") && (urlStr.endsWith(esPrefix + ".jar") || urlStr.endsWith(esPrefix + "-SNAPSHOT.jar"))) {
             try (JarInputStream jar = new JarInputStream(FileSystemUtils.openFileURLStream(url))) {
                 Manifest manifest = jar.getManifest();
                 shortHash = manifest.getMainAttributes().getValue("Change");
@@ -54,7 +56,7 @@ public class Build {
                 throw new RuntimeException(e);
             }
         } else {
-            // not running from a jar (unit tests, IDE)
+            // not running from the official elasticsearch jar file (unit tests, IDE, uber client jar, shadiness)
             shortHash = "Unknown";
             date = "Unknown";
             isSnapshot = true;

core/src/main/java/org/elasticsearch/Version.java

@@ -35,48 +35,6 @@ public class Version implements Comparable<Version> {
      * values below 25 are for alpha builder (since 5.0), and above 25 and below 50 are beta builds, and below 99 are RC builds, with 99
      * indicating a release the (internal) format of the id is there so we can easily do after/before checks on the id
      */
-    public static final int V_2_0_0_ID = 2000099;
-    public static final Version V_2_0_0 = new Version(V_2_0_0_ID, org.apache.lucene.util.Version.LUCENE_5_2_1);
-    public static final int V_2_0_1_ID = 2000199;
-    public static final Version V_2_0_1 = new Version(V_2_0_1_ID, org.apache.lucene.util.Version.LUCENE_5_2_1);
-    public static final int V_2_0_2_ID = 2000299;
-    public static final Version V_2_0_2 = new Version(V_2_0_2_ID, org.apache.lucene.util.Version.LUCENE_5_2_1);
-    public static final int V_2_1_0_ID = 2010099;
-    public static final Version V_2_1_0 = new Version(V_2_1_0_ID, org.apache.lucene.util.Version.LUCENE_5_3_1);
-    public static final int V_2_1_1_ID = 2010199;
-    public static final Version V_2_1_1 = new Version(V_2_1_1_ID, org.apache.lucene.util.Version.LUCENE_5_3_1);
-    public static final int V_2_1_2_ID = 2010299;
-    public static final Version V_2_1_2 = new Version(V_2_1_2_ID, org.apache.lucene.util.Version.LUCENE_5_3_1);
-    public static final int V_2_2_0_ID = 2020099;
-    public static final Version V_2_2_0 = new Version(V_2_2_0_ID, org.apache.lucene.util.Version.LUCENE_5_4_1);
-    public static final int V_2_2_1_ID = 2020199;
-    public static final Version V_2_2_1 = new Version(V_2_2_1_ID, org.apache.lucene.util.Version.LUCENE_5_4_1);
-    public static final int V_2_2_2_ID = 2020299;
-    public static final Version V_2_2_2 = new Version(V_2_2_2_ID, org.apache.lucene.util.Version.LUCENE_5_4_1);
-    public static final int V_2_3_0_ID = 2030099;
-    public static final Version V_2_3_0 = new Version(V_2_3_0_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_3_1_ID = 2030199;
-    public static final Version V_2_3_1 = new Version(V_2_3_1_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_3_2_ID = 2030299;
-    public static final Version V_2_3_2 = new Version(V_2_3_2_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_3_3_ID = 2030399;
-    public static final Version V_2_3_3 = new Version(V_2_3_3_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_3_4_ID = 2030499;
-    public static final Version V_2_3_4 = new Version(V_2_3_4_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_3_5_ID = 2030599;
-    public static final Version V_2_3_5 = new Version(V_2_3_5_ID, org.apache.lucene.util.Version.LUCENE_5_5_0);
-    public static final int V_2_4_0_ID = 2040099;
-    public static final Version V_2_4_0 = new Version(V_2_4_0_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
-    public static final int V_2_4_1_ID = 2040199;
-    public static final Version V_2_4_1 = new Version(V_2_4_1_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
-    public static final int V_2_4_2_ID = 2040299;
-    public static final Version V_2_4_2 = new Version(V_2_4_2_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
-    public static final int V_2_4_3_ID = 2040399;
-    public static final Version V_2_4_3 = new Version(V_2_4_3_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
-    public static final int V_2_4_4_ID = 2040499;
-    public static final Version V_2_4_4 = new Version(V_2_4_4_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
-    public static final int V_2_4_5_ID = 2040599;
-    public static final Version V_2_4_5 = new Version(V_2_4_5_ID, org.apache.lucene.util.Version.LUCENE_5_5_2);
     public static final int V_5_0_0_alpha1_ID = 5000001;
     public static final Version V_5_0_0_alpha1 = new Version(V_5_0_0_alpha1_ID, org.apache.lucene.util.Version.LUCENE_6_0_0);
     public static final int V_5_0_0_alpha2_ID = 5000002;
@@ -120,6 +78,8 @@ public class Version implements Comparable<Version> {
     public static final Version V_5_3_1_UNRELEASED = new Version(V_5_3_1_ID_UNRELEASED, org.apache.lucene.util.Version.LUCENE_6_4_2);
     public static final int V_5_4_0_ID_UNRELEASED = 5040099;
     public static final Version V_5_4_0_UNRELEASED = new Version(V_5_4_0_ID_UNRELEASED, org.apache.lucene.util.Version.LUCENE_6_5_0);
+    public static final int V_5_5_0_ID_UNRELEASED = 5050099;
+    public static final Version V_5_5_0_UNRELEASED = new Version(V_5_5_0_ID_UNRELEASED, org.apache.lucene.util.Version.LUCENE_6_5_0);
     public static final int V_6_0_0_alpha1_ID_UNRELEASED = 6000001;
     public static final Version V_6_0_0_alpha1_UNRELEASED =
         new Version(V_6_0_0_alpha1_ID_UNRELEASED, org.apache.lucene.util.Version.LUCENE_6_5_0);
@@ -140,6 +100,8 @@ public static Version fromId(int id) {
         switch (id) {
             case V_6_0_0_alpha1_ID_UNRELEASED:
                 return V_6_0_0_alpha1_UNRELEASED;
+            case V_5_5_0_ID_UNRELEASED:
+                return V_5_5_0_UNRELEASED;
             case V_5_4_0_ID_UNRELEASED:
                 return V_5_4_0_UNRELEASED;
             case V_5_3_1_ID_UNRELEASED:
@@ -182,48 +144,6 @@ public static Version fromId(int id) {
                 return V_5_0_0_alpha2;
             case V_5_0_0_alpha1_ID:
                 return V_5_0_0_alpha1;
-            case V_2_4_5_ID:
-                return V_2_4_5;
-            case V_2_4_4_ID:
-                return V_2_4_4;
-            case V_2_4_3_ID:
-                return V_2_4_3;
-            case V_2_4_2_ID:
-                return V_2_4_2;
-            case V_2_4_1_ID:
-                return V_2_4_1;
-            case V_2_4_0_ID:
-                return V_2_4_0;
-            case V_2_3_5_ID:
-                return V_2_3_5;
-            case V_2_3_4_ID:
-                return V_2_3_4;
-            case V_2_3_3_ID:
-                return V_2_3_3;
-            case V_2_3_2_ID:
-                return V_2_3_2;
-            case V_2_3_1_ID:
-                return V_2_3_1;
-            case V_2_3_0_ID:
-                return V_2_3_0;
-            case V_2_2_2_ID:
-                return V_2_2_2;
-            case V_2_2_1_ID:
-                return V_2_2_1;
-            case V_2_2_0_ID:
-                return V_2_2_0;
-            case V_2_1_2_ID:
-                return V_2_1_2;
-            case V_2_1_1_ID:
-                return V_2_1_1;
-            case V_2_1_0_ID:
-                return V_2_1_0;
-            case V_2_0_2_ID:
-                return V_2_0_2;
-            case V_2_0_1_ID:
-                return V_2_0_1;
-            case V_2_0_0_ID:
-                return V_2_0_0;
             default:
                 return new Version(id, org.apache.lucene.util.Version.LATEST);
         }

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

@@ -37,6 +37,8 @@
 import org.elasticsearch.action.admin.cluster.node.tasks.get.TransportGetTaskAction;
 import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksAction;
 import org.elasticsearch.action.admin.cluster.node.tasks.list.TransportListTasksAction;
+import org.elasticsearch.action.admin.cluster.remote.RemoteInfoAction;
+import org.elasticsearch.action.admin.cluster.remote.TransportRemoteInfoAction;
 import org.elasticsearch.action.admin.cluster.repositories.delete.DeleteRepositoryAction;
 import org.elasticsearch.action.admin.cluster.repositories.delete.TransportDeleteRepositoryAction;
 import org.elasticsearch.action.admin.cluster.repositories.get.GetRepositoriesAction;
@@ -235,6 +237,7 @@
 import org.elasticsearch.rest.action.admin.cluster.RestPendingClusterTasksAction;
 import org.elasticsearch.rest.action.admin.cluster.RestPutRepositoryAction;
 import org.elasticsearch.rest.action.admin.cluster.RestPutStoredScriptAction;
+import org.elasticsearch.rest.action.admin.cluster.RestRemoteClusterInfoAction;
 import org.elasticsearch.rest.action.admin.cluster.RestRestoreSnapshotAction;
 import org.elasticsearch.rest.action.admin.cluster.RestSnapshotsStatusAction;
 import org.elasticsearch.rest.action.admin.cluster.RestVerifyRepositoryAction;
@@ -400,6 +403,7 @@ public <Request extends ActionRequest, Response extends ActionResponse> void reg
 
         actions.register(MainAction.INSTANCE, TransportMainAction.class);
         actions.register(NodesInfoAction.INSTANCE, TransportNodesInfoAction.class);
+        actions.register(RemoteInfoAction.INSTANCE, TransportRemoteInfoAction.class);
         actions.register(NodesStatsAction.INSTANCE, TransportNodesStatsAction.class);
         actions.register(NodesHotThreadsAction.INSTANCE, TransportNodesHotThreadsAction.class);
         actions.register(ListTasksAction.INSTANCE, TransportListTasksAction.class);
@@ -509,6 +513,7 @@ public void initRestHandlers(Supplier<DiscoveryNodes> nodesInCluster) {
         };
         registerHandler.accept(new RestMainAction(settings, restController));
         registerHandler.accept(new RestNodesInfoAction(settings, restController, settingsFilter));
+        registerHandler.accept(new RestRemoteClusterInfoAction(settings, restController));
         registerHandler.accept(new RestNodesStatsAction(settings, restController));
         registerHandler.accept(new RestNodesHotThreadsAction(settings, restController));
         registerHandler.accept(new RestClusterAllocationExplainAction(settings, restController));