Jerry Cwiklik created UIMA-4585:
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Summary: DUCC Agent CPU percentage is wrong when JP spawn child
procs
Key: UIMA-4585
URL: https://issues.apache.org/jira/browse/UIMA-4585
Project: UIMA
Issue Type: Bug
Components: DUCC
Affects Versions: 2.0.0-Ducc
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.1.0-Ducc
Looks like an Agent is not calculating CPU percentage correctly when running
with cgroups and JP spawns child processes. It correctly iterates over all
processes in the cgroup but it keeps collecting CPU from the JP stat file in
the /proc file system.
To fix this, while iterating over procs in the cgroup, open process stat file
to read the CPU. Make sure to close the file when done.
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