HBASE-25547 (addendum): Roll ExecutorType into ExecutorConfig (#2996)

Signed-off-by: Viraj Jasani <vjasani@apache.org>

hbase-server/src/main/java/org/apache/hadoop/hbase/executor/ExecutorService.java

@@ -127,25 +127,14 @@ public class ExecutorService {
     return getExecutor(type).getThreadPoolExecutor();
   }
 
-  public void startExecutorService(final ExecutorType type, final ExecutorConfig config) {
-    String name = type.getExecutorName(this.servername);
-    if (isExecutorServiceRunning(name)) {
-      LOG.debug("Executor service {} already running on {}", this,
-          this.servername);
-      return;
-    }
-    startExecutorService(config.setName(name));
-  }
-
   /**
    * Initialize the executor lazily, Note if an executor need to be initialized lazily, then all
    * paths should use this method to get the executor, should not start executor by using
    * {@link ExecutorService#startExecutorService(ExecutorConfig)}
    */
-  public ThreadPoolExecutor getExecutorLazily(ExecutorType type, ExecutorConfig config) {
+  public ThreadPoolExecutor getExecutorLazily(ExecutorConfig config) {
-    String name = type.getExecutorName(this.servername);
+    return executorMap.computeIfAbsent(config.getName(), (executorName) ->
-    return executorMap.computeIfAbsent(name, (executorName) ->
+        new Executor(config)).getThreadPoolExecutor();
-        new Executor(config.setName(name))).getThreadPoolExecutor();
   }
 
   public void submit(final EventHandler eh) {
@@ -184,7 +173,7 @@ public class ExecutorService {
   /**
    * Configuration wrapper for {@link Executor}.
    */
-  public static class ExecutorConfig {
+  public class ExecutorConfig {
     // Refer to ThreadPoolExecutor javadoc for details of these configuration.
     // Argument validation and bound checks delegated to the underlying ThreadPoolExecutor
     // implementation.
@@ -192,7 +181,16 @@ public class ExecutorService {
     private int corePoolSize = -1;
     private boolean allowCoreThreadTimeout = false;
     private long keepAliveTimeMillis = KEEP_ALIVE_TIME_MILLIS_DEFAULT;
-    private String name;
+    private ExecutorType executorType;
+
+    public ExecutorConfig setExecutorType(ExecutorType type) {
+      this.executorType = type;
+      return this;
+    }
+
+    private ExecutorType getExecutorType() {
+      return Preconditions.checkNotNull(executorType, "ExecutorType not set.");
+    }
 
     public int getCorePoolSize() {
       return corePoolSize;
@@ -217,13 +215,11 @@ public class ExecutorService {
       return this;
     }
 
+    /**
+     * @return the executor name inferred from the type and the servername on which this is running.
+     */
     public String getName() {
-      return Preconditions.checkNotNull(name);
+      return getExecutorType().getExecutorName(servername);
-    }
-
-    public ExecutorConfig setName(String name) {
-      this.name = name;
-      return this;
     }
 
     public long getKeepAliveTimeMillis() {

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java

@@ -1313,42 +1313,43 @@ public class HMaster extends HRegionServer implements MasterServices {
     // Start the executor service pools
     final int masterOpenRegionPoolSize = conf.getInt(
         HConstants.MASTER_OPEN_REGION_THREADS, HConstants.MASTER_OPEN_REGION_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_OPEN_REGION,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterOpenRegionPoolSize));
+        ExecutorType.MASTER_OPEN_REGION).setCorePoolSize(masterOpenRegionPoolSize));
     final int masterCloseRegionPoolSize = conf.getInt(
         HConstants.MASTER_CLOSE_REGION_THREADS, HConstants.MASTER_CLOSE_REGION_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_CLOSE_REGION,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterCloseRegionPoolSize));
+        ExecutorType.MASTER_CLOSE_REGION).setCorePoolSize(masterCloseRegionPoolSize));
     final int masterServerOpThreads = conf.getInt(HConstants.MASTER_SERVER_OPERATIONS_THREADS,
         HConstants.MASTER_SERVER_OPERATIONS_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_SERVER_OPERATIONS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterServerOpThreads));
+        ExecutorType.MASTER_SERVER_OPERATIONS).setCorePoolSize(masterServerOpThreads));
     final int masterServerMetaOpsThreads = conf.getInt(
         HConstants.MASTER_META_SERVER_OPERATIONS_THREADS,
         HConstants.MASTER_META_SERVER_OPERATIONS_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_META_SERVER_OPERATIONS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterServerMetaOpsThreads));
+        ExecutorType.MASTER_META_SERVER_OPERATIONS).setCorePoolSize(masterServerMetaOpsThreads));
     final int masterLogReplayThreads = conf.getInt(
         HConstants.MASTER_LOG_REPLAY_OPS_THREADS, HConstants.MASTER_LOG_REPLAY_OPS_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.M_LOG_REPLAY_OPS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterLogReplayThreads));
+        ExecutorType.M_LOG_REPLAY_OPS).setCorePoolSize(masterLogReplayThreads));
     final int masterSnapshotThreads = conf.getInt(
         SnapshotManager.SNAPSHOT_POOL_THREADS_KEY, SnapshotManager.SNAPSHOT_POOL_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_SNAPSHOT_OPERATIONS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterSnapshotThreads).setAllowCoreThreadTimeout(true));
+        ExecutorType.MASTER_SNAPSHOT_OPERATIONS).setCorePoolSize(masterSnapshotThreads)
+        .setAllowCoreThreadTimeout(true));
     final int masterMergeDispatchThreads = conf.getInt(HConstants.MASTER_MERGE_DISPATCH_THREADS,
         HConstants.MASTER_MERGE_DISPATCH_THREADS_DEFAULT);
-    this.executorService.startExecutorService(ExecutorType.MASTER_MERGE_OPERATIONS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(masterMergeDispatchThreads)
+        ExecutorType.MASTER_MERGE_OPERATIONS).setCorePoolSize(masterMergeDispatchThreads)
-            .setAllowCoreThreadTimeout(true));
+        .setAllowCoreThreadTimeout(true));
 
     // We depend on there being only one instance of this executor running
     // at a time. To do concurrency, would need fencing of enable/disable of
     // tables.
     // Any time changing this maxThreads to > 1, pls see the comment at
     // AccessController#postCompletedCreateTableAction
-    this.executorService.startExecutorService(
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        ExecutorType.MASTER_TABLE_OPERATIONS, new ExecutorConfig().setCorePoolSize(1));
+        ExecutorType.MASTER_TABLE_OPERATIONS).setCorePoolSize(1));
     startProcedureExecutor();
 
     // Create cleaner thread pool

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java

@@ -2042,57 +2042,59 @@ public class HRegionServer extends Thread implements
 
     // Start executor services
     final int openRegionThreads = conf.getInt("hbase.regionserver.executor.openregion.threads", 3);
-    this.executorService.startExecutorService(ExecutorType.RS_OPEN_REGION,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(openRegionThreads));
+        ExecutorType.RS_OPEN_REGION).setCorePoolSize(openRegionThreads));
     final int openMetaThreads = conf.getInt("hbase.regionserver.executor.openmeta.threads", 1);
-    this.executorService.startExecutorService(ExecutorType.RS_OPEN_META,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(openMetaThreads));
+        ExecutorType.RS_OPEN_META).setCorePoolSize(openMetaThreads));
     final int openPriorityRegionThreads =
         conf.getInt("hbase.regionserver.executor.openpriorityregion.threads", 3);
-    this.executorService.startExecutorService(ExecutorType.RS_OPEN_PRIORITY_REGION,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-       new ExecutorConfig().setCorePoolSize(openPriorityRegionThreads));
+        ExecutorType.RS_OPEN_PRIORITY_REGION).setCorePoolSize(openPriorityRegionThreads));
     final int closeRegionThreads =
         conf.getInt("hbase.regionserver.executor.closeregion.threads", 3);
-    this.executorService.startExecutorService(ExecutorType.RS_CLOSE_REGION,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(closeRegionThreads));
+        ExecutorType.RS_CLOSE_REGION).setCorePoolSize(closeRegionThreads));
     final int closeMetaThreads = conf.getInt("hbase.regionserver.executor.closemeta.threads", 1);
-    this.executorService.startExecutorService(ExecutorType.RS_CLOSE_META,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(closeMetaThreads));
+        ExecutorType.RS_CLOSE_META).setCorePoolSize(closeMetaThreads));
     if (conf.getBoolean(StoreScanner.STORESCANNER_PARALLEL_SEEK_ENABLE, false)) {
       final int storeScannerParallelSeekThreads =
           conf.getInt("hbase.storescanner.parallel.seek.threads", 10);
-      this.executorService.startExecutorService(ExecutorType.RS_PARALLEL_SEEK,
+      executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-          new ExecutorConfig().setCorePoolSize(storeScannerParallelSeekThreads)
+          ExecutorType.RS_PARALLEL_SEEK).setCorePoolSize(storeScannerParallelSeekThreads)
-              .setAllowCoreThreadTimeout(true));
+          .setAllowCoreThreadTimeout(true));
     }
     final int logReplayOpsThreads = conf.getInt(
         HBASE_SPLIT_WAL_MAX_SPLITTER, DEFAULT_HBASE_SPLIT_WAL_MAX_SPLITTER);
-    this.executorService.startExecutorService(ExecutorType.RS_LOG_REPLAY_OPS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(logReplayOpsThreads).setAllowCoreThreadTimeout(true));
+        ExecutorType.RS_LOG_REPLAY_OPS).setCorePoolSize(logReplayOpsThreads)
+        .setAllowCoreThreadTimeout(true));
     // Start the threads for compacted files discharger
     final int compactionDischargerThreads =
         conf.getInt(CompactionConfiguration.HBASE_HFILE_COMPACTION_DISCHARGER_THREAD_COUNT, 10);
-    this.executorService.startExecutorService(ExecutorType.RS_COMPACTED_FILES_DISCHARGER,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(compactionDischargerThreads));
+        ExecutorType.RS_COMPACTED_FILES_DISCHARGER).setCorePoolSize(compactionDischargerThreads));
     if (ServerRegionReplicaUtil.isRegionReplicaWaitForPrimaryFlushEnabled(conf)) {
       final int regionReplicaFlushThreads = conf.getInt(
           "hbase.regionserver.region.replica.flusher.threads", conf.getInt(
               "hbase.regionserver.executor.openregion.threads", 3));
-      this.executorService.startExecutorService(ExecutorType.RS_REGION_REPLICA_FLUSH_OPS,
+      executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-          new ExecutorConfig().setCorePoolSize(regionReplicaFlushThreads));
+          ExecutorType.RS_REGION_REPLICA_FLUSH_OPS).setCorePoolSize(regionReplicaFlushThreads));
     }
     final int refreshPeerThreads =
         conf.getInt("hbase.regionserver.executor.refresh.peer.threads", 2);
-    this.executorService.startExecutorService(ExecutorType.RS_REFRESH_PEER,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(refreshPeerThreads));
+        ExecutorType.RS_REFRESH_PEER).setCorePoolSize(refreshPeerThreads));
     final int replaySyncReplicationWALThreads =
         conf.getInt("hbase.regionserver.executor.replay.sync.replication.wal.threads", 1);
-    this.executorService.startExecutorService(ExecutorType.RS_REPLAY_SYNC_REPLICATION_WAL,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(replaySyncReplicationWALThreads));
+        ExecutorType.RS_REPLAY_SYNC_REPLICATION_WAL).setCorePoolSize(
+            replaySyncReplicationWALThreads));
     final int switchRpcThrottleThreads =
         conf.getInt("hbase.regionserver.executor.switch.rpc.throttle.threads", 1);
-    this.executorService.startExecutorService(ExecutorType.RS_SWITCH_RPC_THROTTLE,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(switchRpcThrottleThreads));
+        ExecutorType.RS_SWITCH_RPC_THROTTLE).setCorePoolSize(switchRpcThrottleThreads));
 
     Threads.setDaemonThreadRunning(this.walRoller, getName() + ".logRoller",
         uncaughtExceptionHandler);

hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServicesForStores.java

@@ -22,6 +22,7 @@ import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import org.apache.hadoop.hbase.client.RegionInfo;
+import org.apache.hadoop.hbase.executor.ExecutorService;
 import org.apache.hadoop.hbase.executor.ExecutorService.ExecutorConfig;
 import org.apache.hadoop.hbase.executor.ExecutorType;
 import org.apache.hadoop.hbase.io.ByteBuffAllocator;
@@ -97,9 +98,10 @@ public class RegionServicesForStores {
 
   ThreadPoolExecutor getInMemoryCompactionPool() {
     if (rsServices != null) {
-      ExecutorConfig config = new ExecutorConfig().setCorePoolSize(inMemoryPoolSize);
+      ExecutorService executorService = rsServices.getExecutorService();
-      return rsServices.getExecutorService().getExecutorLazily(ExecutorType.RS_IN_MEMORY_COMPACTION,
+      ExecutorConfig config = executorService.new ExecutorConfig().setExecutorType(
-        config);
+          ExecutorType.RS_IN_MEMORY_COMPACTION).setCorePoolSize(inMemoryPoolSize);
+      return executorService.getExecutorLazily(config);
     } else {
       // this could only happen in tests
       return getInMemoryCompactionPoolForTest();

hbase-server/src/test/java/org/apache/hadoop/hbase/TestExecutorStatusChore.java

@@ -59,8 +59,8 @@ public class TestExecutorStatusChore {
 
     // Start an executor service pool with max 5 threads
     ExecutorService executorService = new ExecutorService("unit_test");
-    executorService.startExecutorService(ExecutorType.RS_PARALLEL_SEEK,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(maxThreads));
+        ExecutorType.RS_PARALLEL_SEEK).setCorePoolSize(maxThreads));
 
     MetricsRegionServerSource serverSource = CompatibilitySingletonFactory
         .getInstance(MetricsRegionServerSourceFactory.class).createServer(null);

hbase-server/src/test/java/org/apache/hadoop/hbase/executor/TestExecutorService.java

@@ -71,8 +71,8 @@ public class TestExecutorService {
 
     // Start an executor service pool with max 5 threads
     ExecutorService executorService = new ExecutorService("unit_test");
-    executorService.startExecutorService(ExecutorType.MASTER_SERVER_OPERATIONS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(maxThreads));
+        ExecutorType.MASTER_SERVER_OPERATIONS).setCorePoolSize(maxThreads));
 
     Executor executor =
       executorService.getExecutor(ExecutorType.MASTER_SERVER_OPERATIONS);
@@ -197,8 +197,8 @@ public class TestExecutorService {
     when(server.getConfiguration()).thenReturn(conf);
 
     ExecutorService executorService = new ExecutorService("unit_test");
-    executorService.startExecutorService(
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-      ExecutorType.MASTER_SERVER_OPERATIONS, new ExecutorConfig().setCorePoolSize(1));
+        ExecutorType.MASTER_SERVER_OPERATIONS).setCorePoolSize(1));
 
 
     executorService.submit(new EventHandler(server, EventType.M_SERVER_SHUTDOWN) {
@@ -230,8 +230,8 @@ public class TestExecutorService {
     when(server.getConfiguration()).thenReturn(conf);
 
     ExecutorService executorService = new ExecutorService("testSnapshotHandlers");
-    executorService.startExecutorService(
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        ExecutorType.MASTER_SNAPSHOT_OPERATIONS, new ExecutorConfig().setCorePoolSize(1));
+        ExecutorType.MASTER_SNAPSHOT_OPERATIONS).setCorePoolSize(1));
 
     CountDownLatch latch = new CountDownLatch(1);
     CountDownLatch waitForEventToStart = new CountDownLatch(1);

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java

@@ -63,6 +63,7 @@ import org.apache.hadoop.hbase.client.TableDescriptor;
 import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
 import org.apache.hadoop.hbase.executor.ExecutorService;
 import org.apache.hadoop.hbase.executor.ExecutorService.ExecutorConfig;
+import org.apache.hadoop.hbase.executor.ExecutorType;
 import org.apache.hadoop.hbase.io.hfile.HFile;
 import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
 import org.apache.hadoop.hbase.regionserver.HRegion.FlushResultImpl;
@@ -193,7 +194,8 @@ public class TestHRegionReplayEvents {
     String string = org.apache.hadoop.hbase.executor.EventType.RS_COMPACTED_FILES_DISCHARGER
         .toString();
     ExecutorService es = new ExecutorService(string);
-    es.startExecutorService(new ExecutorConfig().setCorePoolSize(1).setName(string + "-" + string));
+    es.startExecutorService(es.new ExecutorConfig().setCorePoolSize(1).setExecutorType(
+        ExecutorType.RS_COMPACTED_FILES_DISCHARGER));
     when(rss.getExecutorService()).thenReturn(es);
     primaryRegion = HRegion.createHRegion(primaryHri, rootDir, CONF, htd, walPrimary);
     primaryRegion.close();

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitLogWorker.java

@@ -212,8 +212,8 @@ public class TestSplitLogWorker {
 
     SplitLogCounters.resetCounters();
     executorService = new ExecutorService("TestSplitLogWorker");
-    executorService.startExecutorService(ExecutorType.RS_LOG_REPLAY_OPS,
+    executorService.startExecutorService(executorService.new ExecutorConfig().setExecutorType(
-        new ExecutorConfig().setCorePoolSize(10));
+        ExecutorType.RS_LOG_REPLAY_OPS).setCorePoolSize(10));
   }
 
   @After