When removing ceph-mon unit, monmap is not updated

Bug #1833252 reported by Giuseppe Petralia on 2019-06-18
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack ceph-mon charm

Bug Description

charm-ceph-mon revision 37.

I have a ceph cluster with 3 monitors.

monitor-count is 3 in ceph-mon configuration.

I removed one ceph-mon unit but monmap was not updated causing
all the ceph commands to hang on any ceph monitor unit,
hitting connection timeout when trying to talk with the already removed units.

To fix this I had to manually remove the monitor following the instruction in:

tags: added: scaleback
Changed in charm-ceph-mon:
status: New → Incomplete
status: Incomplete → Confirmed
James Hebden (ec0) on 2019-06-19
tags: added: canonical-bootstack
Ryan Beisner (1chb1n) wrote :

There are known gaps in scaling back / scaling down OpenStack Charms.

The relation-departed Juju primitive is essentially NotImplemented across all of OpenStack Charms. That needs to be addressed on the higher level, as a concerted effort across the lot of charms.

We are tracking this type of issue with LP tag: "scaleback" in order to get a hit list of items to start with, and so that we can identify any common themes or areas where we should focus first.

FYI, https://bugs.launchpad.net/bugs/+bugs?field.tag=scaleback

Changed in charm-ceph-mon:
importance: Undecided → Wishlist
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