Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20014#discussion_r157673852
--- Diff:
core/src/main/java/org/apache/spark/memory/SparkOutOfMemoryError.java ---
@@ -0,0 +1,33 @@
+/*
+ * 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.memory;
+
+/**
+ * This exception is thrown when a task can not acquire memory from the
Memory manager.
+ * Instead of throwing {@link OutOfMemoryError}, which kills the executor,
+ * we should use throw this exception, which will just kill the current
task.
+ */
+public final class SparkOutOfMemoryError extends OutOfMemoryError {
--- End diff --
is this an internal class? if yes perhaps we should label it.
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