Ceph

11/13/2017

06:21 PM rbd Bug #22119: Possible deadlock in librbd

@Jason: currently we have plans to upgrade Ceph to the latest stable release, but migration is not easy and will not ... Ivan Mironov

03:46 PM rbd Bug #22119 (Can't reproduce): Possible deadlock in librbd

Hi,
we are using qemu-kvm with ceph/rbd as a storage backend for our VMs. And VMs sometimes hang without leaving a... Ivan Mironov

09/05/2014

04:53 AM Ceph Bug #9361 (Resolved): "ceph -w" sometimes segfaults on Ctrl+C

# ceph -w
cluster d4fba9f9-3fa8-4f5f-a81a-acc312cb0152
health HEALTH_OK
monmap e2: 3 mons at {devenv... Ivan Mironov

08/11/2014

07:32 PM rbd Bug #9071: mkfs.ext4 stuck in D state on RBD with kernel client

Please, mark this issue as duplicate of http://tracker.ceph.com/issues/8818 Ivan Mironov

06:06 PM rbd Bug #9071: mkfs.ext4 stuck in D state on RBD with kernel client

Reproducible on all my ceph hosts (all with the same kernel), with any image format (1 or 2). But only with mkfs.ext4... Ivan Mironov

05:47 PM rbd Bug #9071 (Duplicate): mkfs.ext4 stuck in D state on RBD with kernel client

I tried to create ext4 on newly created and mapped RBD image, but mkfs.ext4 stuck:
# mkfs.ext4 /dev/rbd/docker.rbd... Ivan Mironov

10/10/2013

07:29 AM rbd Bug #6494: High memory consumption of qemu/librbd with enabled cache

With "rbd_cache_block_writes_upfront=1" it's harder to catch with massif, but I still see memory usage spikes using a... Ivan Mironov

10/09/2013

03:00 AM rbd Bug #6494: High memory consumption of qemu/librbd with enabled cache

It seems that I found a way to run qemu-kvm under valgrind/massif and trigger this issue. It looks like all this happ... Ivan Mironov

02:44 AM rbd Bug #6494 (Resolved): High memory consumption of qemu/librbd with enabled cache

I observe very high memory consumption on client with write-intensive load with qemu 1.6.0 + librbd 0.67.3.
For be... Ivan Mironov