kyungwan nam created YARN-6401:
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Summary: terminating signal should be able to specify per
application to support graceful-stop
Key: YARN-6401
URL: https://issues.apache.org/jira/browse/YARN-6401
Project: Hadoop YARN
Issue Type: Improvement
Reporter: kyungwan nam
when stop container, first send SIGTERM to the process.
after a while, send SIGKILL if the process is still alive.
above process is always the same for any application.
but, to graceful-stop, sometimes it need to send another signal instead of
SIGTERM.
for instance, if apache httpd on slider is running, SIGWINCH should be came to
stop gracefully.
the way to stop gracefully is depend on application.
it will be good if we can define a signal to terminate per application.
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