Merge pull request #16238 from s1monw/convert_some_settings

Convert `cluster.routing.allocation.type` and `processors` to the new settings infra.

core/src/main/java/org/elasticsearch/cluster/ClusterModule.java

@@ -57,6 +57,7 @@ import org.elasticsearch.cluster.service.InternalClusterService;
 import org.elasticsearch.common.inject.AbstractModule;
 import org.elasticsearch.common.logging.ESLogger;
 import org.elasticsearch.common.logging.Loggers;
+import org.elasticsearch.common.settings.Setting;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.ExtensionPoint;
 import org.elasticsearch.gateway.GatewayAllocator;
@@ -64,6 +65,7 @@ import org.elasticsearch.gateway.GatewayAllocator;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.function.Function;
 
 /**
  * Configures classes and services that affect the entire cluster.
@@ -72,7 +74,7 @@ public class ClusterModule extends AbstractModule {
 
     public static final String EVEN_SHARD_COUNT_ALLOCATOR = "even_shard";
     public static final String BALANCED_ALLOCATOR = "balanced"; // default
-    public static final String SHARDS_ALLOCATOR_TYPE_KEY = "cluster.routing.allocation.type";
+    public static final Setting<String> SHARDS_ALLOCATOR_TYPE_SETTING = new Setting<>("cluster.routing.allocation.type", BALANCED_ALLOCATOR, Function.identity(), false, Setting.Scope.CLUSTER);
     public static final List<Class<? extends AllocationDecider>> DEFAULT_ALLOCATION_DECIDERS =
         Collections.unmodifiableList(Arrays.asList(
             SameShardAllocationDecider.class,
@@ -121,7 +123,7 @@ public class ClusterModule extends AbstractModule {
     @Override
     protected void configure() {
         // bind ShardsAllocator
-        String shardsAllocatorType = shardsAllocators.bindType(binder(), settings, ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, ClusterModule.BALANCED_ALLOCATOR);
+        String shardsAllocatorType = shardsAllocators.bindType(binder(), settings, ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), ClusterModule.BALANCED_ALLOCATOR);
         if (shardsAllocatorType.equals(ClusterModule.EVEN_SHARD_COUNT_ALLOCATOR)) {
             final ESLogger logger = Loggers.getLogger(getClass(), settings);
             logger.warn("{} allocator has been removed in 2.0 using {} instead", ClusterModule.EVEN_SHARD_COUNT_ALLOCATOR, ClusterModule.BALANCED_ALLOCATOR);

core/src/main/java/org/elasticsearch/common/settings/ClusterSettings.java

@@ -21,6 +21,7 @@ package org.elasticsearch.common.settings;
 import org.elasticsearch.action.admin.indices.close.TransportCloseIndexAction;
 import org.elasticsearch.action.support.DestructiveOperations;
 import org.elasticsearch.client.transport.TransportClientNodesService;
+import org.elasticsearch.cluster.ClusterModule;
 import org.elasticsearch.cluster.InternalClusterInfoService;
 import org.elasticsearch.cluster.action.index.MappingUpdatedAction;
 import org.elasticsearch.cluster.metadata.MetaData;
@@ -36,6 +37,7 @@ import org.elasticsearch.cluster.routing.allocation.decider.SnapshotInProgressAl
 import org.elasticsearch.cluster.routing.allocation.decider.ThrottlingAllocationDecider;
 import org.elasticsearch.cluster.service.InternalClusterService;
 import org.elasticsearch.common.logging.ESLoggerFactory;
+import org.elasticsearch.common.util.concurrent.EsExecutors;
 import org.elasticsearch.discovery.DiscoveryModule;
 import org.elasticsearch.discovery.DiscoveryService;
 import org.elasticsearch.common.network.NetworkModule;
@@ -258,5 +260,7 @@ public final class ClusterSettings extends AbstractScopedSettings {
         URLRepository.ALLOWED_URLS_SETTING,
         URLRepository.REPOSITORIES_LIST_DIRECTORIES_SETTING,
         URLRepository.REPOSITORIES_URL_SETTING,
-        URLRepository.SUPPORTED_PROTOCOLS_SETTING)));
+        URLRepository.SUPPORTED_PROTOCOLS_SETTING,
+        ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING,
+        EsExecutors.PROCESSORS_SETTING)));
 }

core/src/main/java/org/elasticsearch/common/util/concurrent/EsExecutors.java

@@ -19,6 +19,7 @@
 
 package org.elasticsearch.common.util.concurrent;
 
+import org.elasticsearch.common.settings.Setting;
 import org.elasticsearch.common.settings.Settings;
 
 import java.util.Arrays;
@@ -40,10 +41,7 @@ public class EsExecutors {
      * Settings key to manually set the number of available processors.
      * This is used to adjust thread pools sizes etc. per node.
      */
-    public static final String PROCESSORS = "processors";
-
-    /** Useful for testing */
-    public static final String DEFAULT_SYSPROP = "es.processors.override";
+    public static final Setting<Integer> PROCESSORS_SETTING = Setting.intSetting("processors", Math.min(32, Runtime.getRuntime().availableProcessors()), 1, false, Setting.Scope.CLUSTER) ;
 
     /**
      * Returns the number of processors available but at most <tt>32</tt>.
@@ -53,11 +51,7 @@ public class EsExecutors {
          * ie. >= 48 create too many threads and run into OOM see #3478
          * We just use an 32 core upper-bound here to not stress the system
          * too much with too many created threads */
-        int defaultValue = Math.min(32, Runtime.getRuntime().availableProcessors());
-        try {
-            defaultValue = Integer.parseInt(System.getProperty(DEFAULT_SYSPROP));
-        } catch (Throwable ignored) {}
-        return settings.getAsInt(PROCESSORS, defaultValue);
+        return PROCESSORS_SETTING.get(settings);
     }
 
     public static PrioritizedEsThreadPoolExecutor newSinglePrioritizing(String name, ThreadFactory threadFactory) {

core/src/test/java/org/elasticsearch/action/admin/cluster/stats/ClusterStatsIT.java

@@ -165,7 +165,7 @@ public class ClusterStatsIT extends ESIntegTestCase {
         internalCluster().ensureAtMostNumDataNodes(0);
 
         // start one node with 7 processors.
-        internalCluster().startNodesAsync(Settings.builder().put(EsExecutors.PROCESSORS, 7).build()).get();
+        internalCluster().startNodesAsync(Settings.builder().put(EsExecutors.PROCESSORS_SETTING.getKey(), 7).build()).get();
         waitForNodes(1);
 
         ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();

core/src/test/java/org/elasticsearch/cluster/ClusterModuleTests.java

@@ -122,7 +122,7 @@ public class ClusterModuleTests extends ModuleTestCase {
     }
 
     public void testRegisterShardsAllocator() {
-        Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, "custom").build();
+        Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), "custom").build();
         ClusterModule module = new ClusterModule(settings);
         module.registerShardsAllocator("custom", FakeShardsAllocator.class);
         assertBinding(module, ShardsAllocator.class, FakeShardsAllocator.class);
@@ -138,14 +138,14 @@ public class ClusterModuleTests extends ModuleTestCase {
     }
 
     public void testUnknownShardsAllocator() {
-        Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, "dne").build();
+        Settings settings = Settings.builder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), "dne").build();
         ClusterModule module = new ClusterModule(settings);
         assertBindingFailure(module, "Unknown [shards_allocator]");
     }
 
     public void testEvenShardsAllocatorBackcompat() {
         Settings settings = Settings.builder()
-            .put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, ClusterModule.EVEN_SHARD_COUNT_ALLOCATOR).build();
+            .put(ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), ClusterModule.EVEN_SHARD_COUNT_ALLOCATOR).build();
         ClusterModule module = new ClusterModule(settings);
         assertBinding(module, ShardsAllocator.class, BalancedShardsAllocator.class);
     }

core/src/test/java/org/elasticsearch/cluster/allocation/ShardsAllocatorModuleIT.java

@@ -40,10 +40,10 @@ public class ShardsAllocatorModuleIT extends ESIntegTestCase {
     }
 
     public void testLoadByShortKeyShardsAllocator() throws IOException {
-        Settings build = settingsBuilder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, "even_shard") // legacy just to make sure we don't barf
+        Settings build = settingsBuilder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), "even_shard") // legacy just to make sure we don't barf
                 .build();
         assertAllocatorInstance(build, BalancedShardsAllocator.class);
-        build = settingsBuilder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_KEY, ClusterModule.BALANCED_ALLOCATOR).build();
+        build = settingsBuilder().put(ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING.getKey(), ClusterModule.BALANCED_ALLOCATOR).build();
         assertAllocatorInstance(build, BalancedShardsAllocator.class);
     }
 

core/src/test/java/org/elasticsearch/cluster/settings/ClusterSettingsIT.java

@@ -335,7 +335,7 @@ public class ClusterSettingsIT extends ESIntegTestCase {
                         .put("node.name", "ClusterSettingsIT")
                         .put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
                         .put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
-                        .put(EsExecutors.PROCESSORS, 1) // limit the number of threads created
+                        .put(EsExecutors.PROCESSORS_SETTING.getKey(), 1) // limit the number of threads created
                         .put("http.enabled", false)
                         .put("config.ignore_system_properties", true) // make sure we get what we set :)
                         .put(settings)

core/src/test/java/org/elasticsearch/nodesinfo/SimpleNodesInfoIT.java

@@ -88,8 +88,8 @@ public class SimpleNodesInfoIT extends ESIntegTestCase {
     public void testAllocatedProcessors() throws Exception {
         List<String> nodesIds = internalCluster().
                 startNodesAsync(
-                        Settings.builder().put(EsExecutors.PROCESSORS, 3).build(),
-                        Settings.builder().put(EsExecutors.PROCESSORS, 6).build()
+                        Settings.builder().put(EsExecutors.PROCESSORS_SETTING.getKey(), 3).build(),
+                        Settings.builder().put(EsExecutors.PROCESSORS_SETTING.getKey(), 6).build()
                 ).get();
 
         final String node_1 = nodesIds.get(0);

core/src/test/java/org/elasticsearch/ttl/SimpleTTLIT.java

@@ -65,8 +65,6 @@ public class SimpleTTLIT extends ESIntegTestCase {
         return settingsBuilder()
                 .put(super.nodeSettings(nodeOrdinal))
                 .put("indices.ttl.interval", PURGE_INTERVAL, TimeUnit.MILLISECONDS)
-                .put("cluster.routing.operation.use_type", false) // make sure we control the shard computation
-                .put("cluster.routing.operation.hash.type", "djb")
                 .build();
     }
 

test/framework/src/main/java/org/elasticsearch/test/ESSingleNodeTestCase.java

@@ -168,7 +168,7 @@ public abstract class ESSingleNodeTestCase extends ESTestCase {
             .put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
             .put("script.inline", "on")
             .put("script.indexed", "on")
-            .put(EsExecutors.PROCESSORS, 1) // limit the number of threads created
+            .put(EsExecutors.PROCESSORS_SETTING.getKey(), 1) // limit the number of threads created
             .put("http.enabled", false)
             .put(Node.NODE_LOCAL_SETTING.getKey(), true)
             .put(Node.NODE_DATA_SETTING.getKey(), true)

test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java

@@ -40,14 +40,12 @@ import org.elasticsearch.bootstrap.BootstrapForTesting;
 import org.elasticsearch.cache.recycler.MockPageCacheRecycler;
 import org.elasticsearch.client.Requests;
 import org.elasticsearch.cluster.metadata.IndexMetaData;
-import org.elasticsearch.common.SuppressForbidden;
 import org.elasticsearch.common.io.PathUtils;
 import org.elasticsearch.common.io.PathUtilsForTesting;
 import org.elasticsearch.common.logging.ESLogger;
 import org.elasticsearch.common.logging.Loggers;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.MockBigArrays;
-import org.elasticsearch.common.util.concurrent.EsExecutors;
 import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.env.Environment;
 import org.elasticsearch.env.NodeEnvironment;
@@ -162,22 +160,6 @@ public abstract class ESTestCase extends LuceneTestCase {
         Requests.INDEX_CONTENT_TYPE = XContentType.JSON;
     }
 
-    // randomize and override the number of cpus so tests reproduce regardless of real number of cpus
-
-    @BeforeClass
-    @SuppressForbidden(reason = "sets the number of cpus during tests")
-    public static void setProcessors() {
-        int numCpu = TestUtil.nextInt(random(), 1, 4);
-        System.setProperty(EsExecutors.DEFAULT_SYSPROP, Integer.toString(numCpu));
-        assertEquals(numCpu, EsExecutors.boundedNumberOfProcessors(Settings.EMPTY));
-    }
-
-    @AfterClass
-    @SuppressForbidden(reason = "clears the number of cpus during tests")
-    public static void restoreProcessors() {
-        System.clearProperty(EsExecutors.DEFAULT_SYSPROP);
-    }
-
     @After
     public final void ensureCleanedUp() throws Exception {
         MockPageCacheRecycler.ensureAllPagesAreReleased();

test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java

@@ -391,11 +391,7 @@ public final class InternalTestCluster extends TestCluster {
             builder.put(SearchService.DEFAULT_KEEPALIVE_SETTING.getKey(), TimeValue.timeValueSeconds(100 + random.nextInt(5 * 60)));
         }
 
-        if (random.nextInt(10) == 0) {
-            // node gets an extra cpu this time
-            builder.put(EsExecutors.PROCESSORS, 1 + EsExecutors.boundedNumberOfProcessors(Settings.EMPTY));
-        }
-
+        builder.put(EsExecutors.PROCESSORS_SETTING.getKey(), 1 + random.nextInt(3));
         if (random.nextBoolean()) {
             if (random.nextBoolean()) {
                 builder.put("indices.fielddata.cache.size", 1 + random.nextInt(1000), ByteSizeUnit.MB);