Re: [ceph-users] Perl Bindings for Ceph

2013-10-20 Thread Jon
Hello Michael, 1. Perhaps I'm misunderstanding, but can Ceph present a SCSI interface? I don't understand how that would help with reducing the size of the rbd. 4. Heh. Tell Me about it [3]. But based on that experience, it *seemed* like I could read ok on the different nodes where the rbd wa

Re: [ceph-users] Perl Bindings for Ceph

2013-10-20 Thread Michael Lowe
1. How about enabling trim/discard support in virtio-SCSI and using fstrim? That might work for you. 4. Well you can mount them rw in multiple vm's with predictably bad results, so I don't see any reason why you could not specify ro as a mount option and do ok. Sent from my iPad > On Oct 21

[ceph-users] Perl Bindings for Ceph

2013-10-20 Thread Jon
Hello, Are there any current Perl modules for Ceph? I found a thread [1] from 2011 with a version of Ceph::RADOS, but it only has functions to deal with pools, and the ->list_pools function causes a seg. fault. I'm interested in controlling Ceph via script / application and I was wondering [hopi

[ceph-users] Radosgw usage

2013-10-20 Thread Derek Yarnell
So I have tried to enable usage logging on a new production Ceph RadosGW cluster but nothing seems to show up. I have added to the [client.radosgw.] section the following rgw enable usage log = true rgw usage log tick interval = 30 rgw usage log flush threshold = 1024 rgw usage max shards = 32 rg

Re: [ceph-users] poor read performance on rbd+LVM, LVM overload

2013-10-20 Thread Sage Weil
On Sun, 20 Oct 2013, Ugis wrote: > >> output follows: > >> #pvs -o pe_start /dev/rbd1p1 > >> 1st PE > >> 4.00m > >> # cat /sys/block/rbd1/queue/minimum_io_size > >> 4194304 > >> # cat /sys/block/rbd1/queue/optimal_io_size > >> 4194304 > > > > Well, the parameters are being set at least. Mike

Re: [ceph-users] health HEALTH_WARN 1 is laggy

2013-10-20 Thread Yan, Zheng
On Mon, Oct 21, 2013 at 9:50 AM, 鹏 wrote: > > hi all, > today , I ceph cluster has soming wrong! one of my mdss is loaggy! > >#ceph -s >health HEALTH_WARN 1 is laggy > >I restart it > > # scrvice ceph -a restart mds.1 > > It is ok at first! but a few M

[ceph-users] health HEALTH_WARN 1 is laggy

2013-10-20 Thread 鹏
hi all, today , I ceph cluster has soming wrong! one of my mdss is loaggy! #ceph -s health HEALTH_WARN 1 is laggy I restart it # scrvice ceph -a restart mds.1 It is ok at first! but a few Minutes latter! #ceph -s health HEALT

Re: [ceph-users] Cuttlefish: pool recreation results in cluster crash

2013-10-20 Thread Sage Weil
Moved to ceph-devel, and opened http://tracker.ceph.com/issues/6598 Have you tried to reproduce this on dumpling or later? Thanks! sage On Sat, 19 Oct 2013, Andrey Korolyov wrote: > Hello, > > I was able to reproduce following on the top of current cuttlefish: > > - create pool, > - delete i

Re: [ceph-users] poor read performance on rbd+LVM, LVM overload

2013-10-20 Thread Josh Durgin
On 10/20/2013 08:18 AM, Ugis wrote: output follows: #pvs -o pe_start /dev/rbd1p1 1st PE 4.00m # cat /sys/block/rbd1/queue/minimum_io_size 4194304 # cat /sys/block/rbd1/queue/optimal_io_size 4194304 Well, the parameters are being set at least. Mike, is it possible that having minimum_io

Re: [ceph-users] poor read performance on rbd+LVM, LVM overload

2013-10-20 Thread Ugis
>> output follows: >> #pvs -o pe_start /dev/rbd1p1 >> 1st PE >> 4.00m >> # cat /sys/block/rbd1/queue/minimum_io_size >> 4194304 >> # cat /sys/block/rbd1/queue/optimal_io_size >> 4194304 > > Well, the parameters are being set at least. Mike, is it possible that > having minimum_io_size set to