[Bugs] [Bug 1320101] New: Client log gets flooded by default with fop stats under DEBUG level

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1320101

            Bug ID: 1320101
           Summary: Client log gets flooded by default with fop stats
                    under DEBUG level
           Product: GlusterFS
           Version: mainline
         Component: io-stats
          Severity: medium
          Assignee: bugs at gluster.org
          Reporter: anoopcs at redhat.com
                CC: bugs at gluster.org



Description of problem:
By default raising the client log level to DEBUG will dump JSON fop statistics
every 5 seconds to client logs. It's annoying to see all those stats even if
someone is not interested. In addition to that it will eats up the disk space
very fast.

Version-Release number of selected component (if applicable):
master

How reproducible:
Always

Steps to Reproduce:
1. Create a simple 1-brick distribute volume.
2. Start the volume and do the following volume set operation
# gluster volume set <VOLNAME> diagnostics.client-log-level DEBUG
3. Check client logs.

Actual results:
Huge dump of json fop statistics are dumped very fast.

Expected results:
No fop statistics dump are seen in client logs.

Additional info:
Even though we do have a volume set option(diagnostics.stats-dump-interval) to
disable this dumping of fop stats to client logs, it is not taken into effect
unless a re-mount of the volume is done.

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