Hello Achim,
good to hear someone else running this setup. We have changed the number
of backfills using
ceph tell osd.\* injectargs '--osd-max-backfills 1'
and it seems to work mostly in regards of issues when rebalancing.
One unsolved problem we have is machines kernel panic'ing, when
Hi,
We have the same setup including OpenNebula 4.10.1. We had some
backfilling due to node failures and node expansion. If we throttle
osd_max_backfills there is not a problem at all. If the value for
backfilling jobs is too high, we can see delayed reactions within the
shell, eg. `ls -lh` needs
Hello,
another issue we have experienced with qemu VMs
(qemu 2.0.0) with ceph-0.80 on Ubuntu 14.04
managed by opennebula 4.10.1:
The VMs are completly frozen when rebalancing takes place,
they do not even respond to ping anymore.
Looking at the qemu processes they are in state Sl.
Is this a
I think smaller clusters get chocked up with the default backfill. I've
seen latency on a four node cluster with 10 OSD each improve by setting
osd_max_backfills to 2. I would try lowering it and see if it helps.
Also, if you are running both cluster and VM traffic on the same network,
you could
