BIGTOP-3716: Rename the Yarn/MapReduce historyserver PID file #934
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The naming rule of Yarn/MapReduce historyserver PID file is deprecated in Hadoop 3.x. Change-Id: I9170ff6047f1be593279ef9c9f71dcb09614d7ef Signed-off-by: Yuqi Gu <yuqi.gu@arm.com>
This was referenced Jul 6, 2022
iwasakims
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Jul 6, 2022
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LGTM.
I think the second part of the pid file name is not a user name but the value of HADOOP_IDENT_STRING.
https://github.com/apache/hadoop/blob/rel/release-3.3.3/hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh#L2699
HADOOP_IDENT_STRING is defined in the default file of the service unless Ambari overrides it.
Anyway the prefix is always hadoop- and the second parts are hdfs, yarn, mapred unless Ambari overrides it.
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The naming rule of Yarn/MapReduce historyserver PID file
is deprecated in Hadoop 3.x.