pan3793 commented on code in PR #8331:
URL: https://github.com/apache/hadoop/pull/8331#discussion_r2918246742
##########
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/YARNRunner.java:
##########
@@ -503,7 +503,9 @@ private List<String> setupAMCommand(Configuration jobConf) {
}
}
- vargs.add(MRJobConfig.APPLICATION_MASTER_CLASS);
+ String amClass = jobConf.get("yarn.app.mapreduce.am",
Review Comment:
```
$ export CLASSPATH=...
$ java -Xmx1g HackMain Main foo bar
```
@lewismc, I guess in the above command, `HackMain` will run as the
entrypoint?
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