[Bug 1724529] Re: ceph health output flips between OK and WARN all the time

[Marian Gasparovic]

While we were collecting sosreport it filled the disk space on ceph-mon
and service had to be restarted. Since then there is no flapping, it is
just correctly reporting HEALTH_WARN all the time.

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https://bugs.launchpad.net/bugs/1724529

Title:
  ceph health output flips between OK and WARN all the time

Status in OpenStack ceph-mon charm:
  Invalid
Status in ceph package in Ubuntu:
  Incomplete

Bug description:
  Bellow is an output from ceph health running in one second intervals.
  Although number of PGs does not change, output changes from HEALTH-OK
  to WARN and back all the time.

  https://pastebin.canonical.com/200887/

  Command bellow generates a PG distribution per OSD

  https://pastebin.canonical.com/200891/

  and here is output it created

  https://pastebin.canonical.com/200877/

  Running on Ubuntu 14.04
  charm version stable/17.02
  ceph version 10.2.7-0ubuntu0.16.04.1~cloud0

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