1 files changed, 53 insertions, 0 deletions
diff --git a/core/src/main/scala/org/apache/spark/executor/ExecutorUncaughtExceptionHandler.scala b/core/src/main/scala/org/apache/spark/executor/ExecutorUncaughtExceptionHandler.scala
new file mode 100644
index 0000000000..b0e984c039
--- /dev/null
+++ b/core/src/main/scala/org/apache/spark/executor/ExecutorUncaughtExceptionHandler.scala
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.executor
+
+import org.apache.spark.Logging
+import org.apache.spark.util.Utils
+
+/**
+ * The default uncaught exception handler for Executors terminates the whole process, to avoid
+ * getting into a bad state indefinitely. Since Executors are relatively lightweight, it's better
+ * to fail fast when things go wrong.
+ */
+private[spark] object ExecutorUncaughtExceptionHandler
+  extends Thread.UncaughtExceptionHandler with Logging {
+
+  override def uncaughtException(thread: Thread, exception: Throwable) {
+    try {
+      logError("Uncaught exception in thread " + thread, exception)
+
+      // We may have been called from a shutdown hook. If so, we must not call System.exit().
+      // (If we do, we will deadlock.)
+      if (!Utils.inShutdown()) {
+        if (exception.isInstanceOf[OutOfMemoryError]) {
+          System.exit(ExecutorExitCode.OOM)
+        } else {
+          System.exit(ExecutorExitCode.UNCAUGHT_EXCEPTION)
+        }
+      }
+    } catch {
+      case oom: OutOfMemoryError => Runtime.getRuntime.halt(ExecutorExitCode.OOM)
+      case t: Throwable => Runtime.getRuntime.halt(ExecutorExitCode.UNCAUGHT_EXCEPTION_TWICE)
+    }
+  }
+
+  def uncaughtException(exception: Throwable) {
+    uncaughtException(Thread.currentThread(), exception)
+  }
+}