Re: [ceph-users] Ceph cache tier, flushed objects does not appear to be written on disk

2016-04-26 Thread Gregory Farnum
You've probably got some issues with the exact commands you're running and how they interact with read-only caching — that's a less-common cache type. You'll need to get somebody who's experienced using those cache types or who has worked with it recently to help out, though. -Greg On Tue, Apr 26,

Re: [ceph-users] Ceph cache tier, flushed objects does not appear to be written on disk

2016-04-26 Thread Benoît LORIOT
Hi Greg, yes directory is hashed four levels deep and contain files # ls -l /var/lib/ceph/osd/ceph-1/current/1.0_head/DIR_0/DIR_0/DIR_0/DIR_0/ total 908 -rw-r--r--. 1 root root 601 Mar 15 15:01 1021bdf.__head_E5BD__1 -rw-r--r--. 1 root root 178571 Mar 15 15:06 1026de5.

Re: [ceph-users] Ceph cache tier, flushed objects does not appear to be written on disk

2016-04-25 Thread Gregory Farnum
On Thursday, April 21, 2016, Benoît LORIOT wrote: > Hello, > > we want to disable readproxy cache tier but before doing so we would like > to make sure we won't loose data. > > Is there a way to confirm that flush actually write objects to disk ? > > We're using ceph version 0.94.6. > > > I tried

[ceph-users] Ceph cache tier, flushed objects does not appear to be written on disk

2016-04-21 Thread Benoît LORIOT
Hello, we want to disable readproxy cache tier but before doing so we would like to make sure we won't loose data. Is there a way to confirm that flush actually write objects to disk ? We're using ceph version 0.94.6. I tried that, with cephfs_data_ro_cache being the hot storage pool and cephf