abstractdog commented on code in PR #461:
URL: https://github.com/apache/tez/pull/461#discussion_r2884078034
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tez-dag/src/main/java/org/apache/tez/dag/app/DAGAppMaster.java:
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@@ -2415,13 +2416,15 @@ public static void main(String[] args) {
// Install the tez class loader, which can be used add new resources
TezClassLoader.setupTezClassLoader();
Thread.setDefaultUncaughtExceptionHandler(new
YarnUncaughtExceptionHandler());
- final String pid = System.getenv().get("JVM_PID");
Review Comment:
while I like using ProcessHandle instead of `JVM_PID`, I'm not sure if this
is 100% correct
I'm concerned by the fact that `JVM_PID` is used in yarn too, see in hadoop
code, e.g.
https://github.com/apache/hadoop/blob/f49c49aa083b9324ae432902f94a7aaf98f543ea/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java#L126
also, not 100% sure if JVM_PID belongs to the actual Java process id or the
`launch_container.sh` shell script provided by yarn
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