Feature request regarding size and min_size on pools

2013-09-10 Thread Svein-Erik Lund
Hello, We are implementing ceph as storage backend for some systems. Unfortunately we have to use a posix filesystem for storing the data. To accomplish this we have implemented a solution quite similar to what Sebastien Han has described on his blog here

Re: [PATCH] fscache: check consistency does not decrement refcount

2013-09-10 Thread David Howells
Milosz Tanski mil...@adfin.com wrote: __fscache_check_consistency() does not decrement the count of operations active after it finishes in the success case. This leads to a hung tasks on cookie de-registration (commonly in inode eviction). INFO: task kworker/1:2:4214 blocked for more than

Re: [ceph-users] Help needed porting Ceph to RSockets

2013-09-10 Thread Andreas Bluemle
Hi, after some more analysis and debugging, I found workarounds for my problems; I have added these workarounds to the last version of the patch for the poll problem by Sean; see the attachment to this posting. The shutdown() operations below are all SHUT_RDWR. 1. shutdown() on side A of a

Re: Feature request regarding size and min_size on pools

2013-09-10 Thread Sylvain Munaut
Hi, Now to our problem. We want to be sure that a write is replicated before we get a ack. That should be the case AFAIU. There was however a bug that was recently fixed that make RBD ack too early. one osd can lead to data loss with min_size set to 1. It definitely shouldn't. Unless of

Teuthology queuing archiving (was: teuthology and jenkins)

2013-09-10 Thread Loic Dachary
Hi, In the context of the OpenStack CI, James E. Blair wrote http://git.openstack.org/cgit/openstack-infra/nodepool/tree/ which is described in the Nodepool part of http://amo-probos.org/post/15 It seems a good an minimal candidate to provision machines. I'm on

Re: [PATCH] fscache: check consistency does not decrement refcount

2013-09-10 Thread Milosz Tanski
Sage, Can you submit to the upstream next in your next round of fixes (with David's ack). Thanks, - Milosz P.S: Thanks David. On Tue, Sep 10, 2013 at 8:34 AM, David Howells dhowe...@redhat.com wrote: Milosz Tanski mil...@adfin.com wrote: __fscache_check_consistency() does not decrement the

Re: [PATCH] fscache: check consistency does not decrement refcount

2013-09-10 Thread Sage Weil
On Tue, 10 Sep 2013, Milosz Tanski wrote: Sage, Can you submit to the upstream next in your next round of fixes (with David's ack). Yep; it's in the queue. Thanks! sage Thanks, - Milosz P.S: Thanks David. On Tue, Sep 10, 2013 at 8:34 AM, David Howells dhowe...@redhat.com wrote:

v0.67.3 Dumpling released

2013-09-10 Thread Sage Weil
This point release fixes a few important performance regressions with the OSD (both with CPU and disk utilization), as well as several other important but less common problems. We recommend that all production users upgrade. Notable changes since v0.67.2 include: * ceph-disk: partprobe after

Bobtail to dumpling (was: OSD crash during repair)

2013-09-10 Thread Chris Dunlop
On Fri, Sep 06, 2013 at 08:21:07AM -0700, Sage Weil wrote: On Fri, 6 Sep 2013, Chris Dunlop wrote: On Thu, Sep 05, 2013 at 07:55:52PM -0700, Sage Weil wrote: Also, you should upgrade to dumpling. :) I've been considering it. It was initially a little scary with the various issues that were

Re: Bobtail to dumpling (was: OSD crash during repair)

2013-09-10 Thread Sage Weil
On Wed, 11 Sep 2013, Chris Dunlop wrote: On Fri, Sep 06, 2013 at 08:21:07AM -0700, Sage Weil wrote: On Fri, 6 Sep 2013, Chris Dunlop wrote: On Thu, Sep 05, 2013 at 07:55:52PM -0700, Sage Weil wrote: Also, you should upgrade to dumpling. :) I've been considering it. It was initially a