[SPARK-12365][CORE] Use ShutdownHookManager where Runtime.getRuntime.addShutdownHook() is called

SPARK-9886 fixed ExternalBlockStore.scala

This PR fixes the remaining references to Runtime.getRuntime.addShutdownHook()

Author: tedyu <[email protected]>

Closes #10325 from ted-yu/master.

Author: tedyu

core/src/main/scala/org/apache/spark/deploy/ExternalShuffleService.scala

@@ -28,7 +28,7 @@ import org.apache.spark.network.sasl.SaslServerBootstrap
 import org.apache.spark.network.server.{TransportServerBootstrap, TransportServer}
 import org.apache.spark.network.shuffle.ExternalShuffleBlockHandler
 import org.apache.spark.network.util.TransportConf
-import org.apache.spark.util.Utils
+import org.apache.spark.util.{ShutdownHookManager, Utils}
 
 /**
  * Provides a server from which Executors can read shuffle files (rather than reading directly from
@@ -118,19 +118,13 @@ object ExternalShuffleService extends Logging {
     server = newShuffleService(sparkConf, securityManager)
     server.start()
 
-    installShutdownHook()
+    ShutdownHookManager.addShutdownHook { () =>
+      logInfo("Shutting down shuffle service.")
+      server.stop()
+      barrier.countDown()
+    }
 
     // keep running until the process is terminated
     barrier.await()
   }
-
-  private def installShutdownHook(): Unit = {
-    Runtime.getRuntime.addShutdownHook(new Thread("External Shuffle Service shutdown thread") {
-      override def run() {
-        logInfo("Shutting down shuffle service.")
-        server.stop()
-        barrier.countDown()
-      }
-    })
-  }
 }

core/src/main/scala/org/apache/spark/deploy/mesos/MesosClusterDispatcher.scala

@@ -22,7 +22,7 @@ import java.util.concurrent.CountDownLatch
 import org.apache.spark.deploy.mesos.ui.MesosClusterUI
 import org.apache.spark.deploy.rest.mesos.MesosRestServer
 import org.apache.spark.scheduler.cluster.mesos._
-import org.apache.spark.util.SignalLogger
+import org.apache.spark.util.{ShutdownHookManager, SignalLogger}
 import org.apache.spark.{Logging, SecurityManager, SparkConf}
 
 /*
@@ -103,14 +103,11 @@ private[mesos] object MesosClusterDispatcher extends Logging {
     }
     val dispatcher = new MesosClusterDispatcher(dispatcherArgs, conf)
     dispatcher.start()
-    val shutdownHook = new Thread() {
-      override def run() {
-        logInfo("Shutdown hook is shutting down dispatcher")
-        dispatcher.stop()
-        dispatcher.awaitShutdown()
-      }
+    ShutdownHookManager.addShutdownHook { () =>
+      logInfo("Shutdown hook is shutting down dispatcher")
+      dispatcher.stop()
+      dispatcher.awaitShutdown()
     }
-    Runtime.getRuntime.addShutdownHook(shutdownHook)
     dispatcher.awaitShutdown()
   }
 }

core/src/main/scala/org/apache/spark/util/ShutdownHookManager.scala

@@ -162,7 +162,9 @@ private[spark] object ShutdownHookManager extends Logging {
       val hook = new Thread {
         override def run() {}
       }
+      // scalastyle:off runtimeaddshutdownhook
       Runtime.getRuntime.addShutdownHook(hook)
+      // scalastyle:on runtimeaddshutdownhook
       Runtime.getRuntime.removeShutdownHook(hook)
     } catch {
       case ise: IllegalStateException => return true
@@ -228,7 +230,9 @@ private [util] class SparkShutdownHookManager {
           .invoke(shm, hookTask, Integer.valueOf(fsPriority + 30))
 
       case Failure(_) =>
+        // scalastyle:off runtimeaddshutdownhook
         Runtime.getRuntime.addShutdownHook(new Thread(hookTask, "Spark Shutdown Hook"));
+        // scalastyle:on runtimeaddshutdownhook
     }
   }
 

scalastyle-config.xml

@@ -157,6 +157,18 @@ This file is divided into 3 sections:
     ]]></customMessage>
   </check>
 
+  <check customId="runtimeaddshutdownhook" level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
+    <parameters><parameter name="regex">Runtime\.getRuntime\.addShutdownHook</parameter></parameters>
+    <customMessage><![CDATA[
+      Are you sure that you want to use Runtime.getRuntime.addShutdownHook? In most cases, you should use
+      ShutdownHookManager.addShutdownHook instead.
+      If you must use Runtime.getRuntime.addShutdownHook, wrap the code block with
+      // scalastyle:off runtimeaddshutdownhook
+      Runtime.getRuntime.addShutdownHook(...)
+      // scalastyle:on runtimeaddshutdownhook
+    ]]></customMessage>
+  </check>
+
   <check customId="classforname" level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
     <parameters><parameter name="regex">Class\.forName</parameter></parameters>
     <customMessage><![CDATA[

sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkSQLCLIDriver.scala

@@ -195,20 +195,18 @@ private[hive] object SparkSQLCLIDriver extends Logging {
     }
 
     // add shutdown hook to flush the history to history file
-    Runtime.getRuntime.addShutdownHook(new Thread(new Runnable() {
-      override def run() = {
-        reader.getHistory match {
-          case h: FileHistory =>
-            try {
-              h.flush()
-            } catch {
-              case e: IOException =>
-                logWarning("WARNING: Failed to write command history file: " + e.getMessage)
-            }
-          case _ =>
-        }
+    ShutdownHookManager.addShutdownHook { () =>
+      reader.getHistory match {
+        case h: FileHistory =>
+          try {
+            h.flush()
+          } catch {
+            case e: IOException =>
+              logWarning("WARNING: Failed to write command history file: " + e.getMessage)
+          }
+        case _ =>
       }
-    }))
+    }
 
     // TODO: missing
 /*