Hi Christian,
if I remember correctly you are using ceph with a qemu-kvm setup?
After the last update of ceph, the load average on the osd was doubled,
the performance of the kvm machines became bad.
The really weird thing is, the cluster "needs" around 30 mins to get
into this state. After I restart the osd's everything is fine, than
after a while the load of the osd nodes is building up. Most of the load
is produced by btrfs kernel processes in the deferred state.
Not sure if I have the same problem as you, as I do not get any timeouts.
Best Regards,
martin
Christian Brunner schrieb:
Hi,
I've upgraded ceph from 0.32 to 0.36 yesterday. Now I have a totaly
screwed ceph cluster. :(
What bugs me most is the fact, that OSDs become unresponsive
frequently. The process is eating a lot of cpu and I can see the
following messages in the log:
Oct 8 22:30:05 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Oct 8 22:30:10 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Oct 8 22:30:15 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Oct 8 22:30:20 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Oct 8 22:30:25 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Oct 8 22:30:30 os00 osd.000[31688]: 7fe0f3b9c700 heartbeat_map
is_healthy 'OSD::disk_tp thread 0x7fe0e527e700' had timed out after 60
Do you have any idea, what to do about that?
Regards,
Christian
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