Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/19591#discussion_r158198274
--- Diff:
launcher/src/main/java/org/apache/spark/launcher/InProcessAppHandle.java ---
@@ -0,0 +1,74 @@
+/*
+ * 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.launcher;
+
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.util.concurrent.ThreadFactory;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+class InProcessAppHandle extends AbstractAppHandle {
+
+ private static final Logger LOG =
Logger.getLogger(ChildProcAppHandle.class.getName());
+ private static final ThreadFactory THREAD_FACTORY = new
NamedThreadFactory("spark-app-%d");
--- End diff --
how about the thread name including `builder.appName`? might be useful if
you are trying to monitor a bunch of threads?
(though you'd also be launching in cluster mode in that case, so the thread
wouldn't be doing much ...)
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