The ceph status command returns a lot of information stored in variables
and/or facts which could consume resources for nothing.
When checking the rgw/rbdmirror services status, we're only using the
servicmap structure in the ceph status output.
To optimize this, we could use the ceph service dump command which contains
the same needed information.
This command returns less information and is slightly faster than the ceph
status command.
$ ceph status -f json | wc -c
2001
$ ceph service dump -f json | wc -c
1105
$ time ceph status -f json > /dev/null
real 0m0.557s
user 0m0.516s
sys 0m0.040s
$ time ceph service dump -f json > /dev/null
real 0m0.454s
user 0m0.434s
sys 0m0.020s
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
By default, ansible gathers facts from facter and ohai if installed on
the remote nodes, given we don't need them, let's exclude these facts
from our facts gathering
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
Instead of running the ceph roles against localhost we should do it
on the first mon.
The ansible and inventory hostname of the rgw nodes could be different.
Ensure that the rgw instance to remove is present in the cluster.
Fix rgw service and directory path.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1677431
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
Add a playbook named shrink-rgw.yml to infrastructure-playbooks/ that
can remove a RGW from a node in an already deployed Ceph cluster.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1677431
Signed-off-by: Rishabh Dave <ridave@redhat.com>
Dimitri Savineau
Mehdy
Rishabh Dave