Re: [ceph-users] old osds take much longer to start than newer osd

2015-03-02 Thread Stephan Hohn
Try and check the xfs fragmentation factor on your „old“ osds. $ xfs_db -c frag -r /dev/sdX and see if it’s incredible high. On 27 Feb 2015, at 14:02, Corin Langosch corin.lango...@netskin.com wrote: Hi guys, I'm using ceph for a long time now, since bobtail. I always upgraded every

Re: [ceph-users] old osds take much longer to start than newer osd

2015-03-02 Thread Corin Langosch
It's a little worse, but not much: root@r-ch106:~# xfs_db -c frag -r /dev/sda1 actual 397955, ideal 324744, fragmentation factor 18.40% root@r-ch106:~# xfs_db -c frag -r /dev/sdb2 actual 378729, ideal 324349, fragmentation factor 14.36% root@r-ch105:~# xfs_db -c frag -r /dev/sdb2 actual 382831,

Re: [ceph-users] old osds take much longer to start than newer osd

2015-03-02 Thread Gregory Farnum
This is probably LevelDB being slow. The monitor has some options to compact the store on startup and I thought the osd handled it automatically, but you could try looking for something like that and see if it helps. -Greg On Fri, Feb 27, 2015 at 5:02 AM Corin Langosch corin.lango...@netskin.com

[ceph-users] old osds take much longer to start than newer osd

2015-02-27 Thread Corin Langosch
Hi guys, I'm using ceph for a long time now, since bobtail. I always upgraded every few weeks/ months to the latest stable release. Of course I also removed some osds and added new ones. Now during the last few upgrades (I just upgraded from 80.6 to 80.8) I noticed that old osds take much

Re: [ceph-users] old osds take much longer to start than newer osd

2015-02-27 Thread Robert LeBlanc
Does deleting/reformatting the old osds improve the performance? On Fri, Feb 27, 2015 at 6:02 AM, Corin Langosch corin.lango...@netskin.com wrote: Hi guys, I'm using ceph for a long time now, since bobtail. I always upgraded every few weeks/ months to the latest stable release. Of course I

Re: [ceph-users] old osds take much longer to start than newer osd

2015-02-27 Thread Corin Langosch
I'd guess so, but that's not what I want to do ;) Am 27.02.2015 um 18:43 schrieb Robert LeBlanc: Does deleting/reformatting the old osds improve the performance? On Fri, Feb 27, 2015 at 6:02 AM, Corin Langosch corin.lango...@netskin.com wrote: Hi guys, I'm using ceph for a long time now,