Josh Elser created ACCUMULO-3770:
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Summary: Replace GarbageCollectionLogger with JVM provided GC stats
Key: ACCUMULO-3770
URL: https://issues.apache.org/jira/browse/ACCUMULO-3770
Project: Accumulo
Issue Type: Improvement
Components: tserver
Reporter: Josh Elser
Priority: Minor
Fix For: 1.8.0
Hotspot provides some JVM opts that can be enabled which will print out status
messages for garbage collection:
{{-XX:+PrintGCDetails -XX:+PrintGCTimeStamps -verbose:gc}}
TabletServers have the {{GarbageCollectionLogger}} doing its own inspection of
heap usage via {{Runtime}} and also tracking the real interval between calls to
itself WRT the expected interval (to try to guess if there are issues getting
resources to run code).
As long as openjdk has support for the same options, I think removing the heap
inspection would be good. Do we still want to preserve the "timeliness" check
though? I'm not sure how valuable it is in real environments.
Thoughts?
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