Re: CephFS Luminous | MDS frequent "replicating dir" message in log

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is supposed to indicate that the directory is hot and being replicated to another active MDS to spread the load.

But skimming the code it looks like maybe there's a bug and this is not blocked on the multiple-active stuff it's supposed to be. (Though I don't anticipate any issues for you.) Patrick, Zheng, any thoughts?
-Greg

On Mon, Sep 25, 2017 at 4:59 AM David <dclistslinux@xxxxxxxxx> wrote:
Hi All

Since upgrading a cluster from Jewel to Luminous I'm seeing a lot of the following line in my ceph-mds log (path name changed by me - the messages refer to different dirs)

2017-09-25 12:47:23.073525 7f06df730700  0 mds.0.bal replicating dir [dir 0x10000003e5b /path/to/dir/ [2,head] auth v=50477 cv=50465/50465 ap=0+3+4 state=1610612738|complete f(v0 m2017-03-27 11:04:17.935529 51=19+32) n(v3297 rc2017-09-25 12:46:13.379651 b14050737379 13086=10218+2868)/n(v3297 rc2017-09-25 12:46:13.052651 b14050862881 13083=10215+2868) hs=51+0,ss=0+0 dirty=1 | child=1 dirty=1 waiter=0 authpin=0 0x7f0707298000] pop 13139 .. rdp 191 adj 0

I've not had any issues reported, just interested to know why I'm suddenly seeing a lot of these messages, the client versions and workload hasn't changed. Anything to be concerned about?

Single MDS with standby-replay
Luminous 12.2.0
Kernel clients: 3.10.0-514.2.2.el7.x86_64

Thanks,
David
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux