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Created July 19, 2023 08:38
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Useful monitoring commands. Java/docker/wildfly
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gistfile1.txt
# Java flight recording snapshot :
docker exec <containerID> jcmd <java PID inside container> JFR.start name=monitor30m maxage=30m maxsize=250M
# Dump will be stored in container app root path (/opt/jboss/***.jfr in my case) after 30m
# If you want to stop it before maxage time :
docker exec <containerID> jcmd <java PID inside container> JFR.stop name=monitor30m filename=/tmp/debugrun1.jfr
# JFR file can be analyser with Oracle Java Mission Control
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