Andrei Dulceanu created OAK-7384:
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Summary: SegmentNodeStoreStats should expose stats for previous
minute per thread group
Key: OAK-7384
URL: https://issues.apache.org/jira/browse/OAK-7384
Project: Jackrabbit Oak
Issue Type: Improvement
Components: segment-tar
Reporter: Andrei Dulceanu
Assignee: Andrei Dulceanu
Fix For: 1.9.0, 1.10
The current "CommitsCountPerWriter" stats exposed by {{SegmentNodeStoreStats}}
are hard to follow since there can be too many writers at a time. To improve
this, a more coarse-grained version of this metric should be added, in which
commits are recorded for groups of threads. The groups should be configurable
and represent regexes to be matched by individual thread names. An additional
group (i.e. "other") will group all threads not matching any of the defined
group regexes.
The current behaviour will be split in two:
* "CommitsCountOtherThreads" will expose a snapshot of threads currently in
"other" group
* "CommitsCountPerGroup" will expose an aggregate of commits count per thread
group for the previous minute.
Both metrics will be reset each minute.
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