Re: rbd-mirror stops replaying journal on primary cluster

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

 



Hi,

> På 2022-06-02 16:55 skrev Anthony D'Atri <anthony.datri@xxxxxxxxx>:
> 
>  
> How big is the pool, and what is the latency between clusters ?
> 
534TiB RAW and 0.3ms/0.1ms latency (vm running rbd-mirror).

> > On Jun 2, 2022, at 7:37 AM, Josef Johansson <josef@xxxxxxxxxxx> wrote:
> > 
> > Hi,
> > 
> > I'm running ceph octopus 15.2.16 and I'm trying out two way mirroring.
> > 
> > Everything seems to running fine except sometimes when the replay stops at the primary clusters.
> > 
> > This means that VMs will not start properly until all journal entries are replayed, but also that the journal grows by time.
> > 
> > I am trying to find out why this occurs, and where to look for more information.
> > 
> > I am currently using rbd --pool <pool> --image <image> journal status to see if the clients are in sync or not.
> > 
> > Example output when things went sideways
> > 
> > minimum_set: 0
> > active_set: 2
> > registered clients:
> > [id=, commit_position=[positions=[[object_number=0, tag_tid=1, entry_tid=4592], [object_number=3, tag_tid=1, entry_tid=4591], [object_number=2, tag_tid=1, entry_tid=4590], [object_number=1, tag_tid=1, entry_tid=4589]]], state=connected]
> > [id=bdde9b90-df26-4e3d-84b3-66605dc45608, commit_position=[positions=[[object_number=5, tag_tid=1, entry_tid=19913], [object_number=4, tag_tid=1, entry_tid=19912], [object_number=7, tag_tid=1, entry_tid=19911], [object_number=6, tag_tid=1, entry_tid=19910]]], state=disconnected]
> > 
> > Right now I'm trying to catch it red handed in the primary osd logs. But I'm not even sure if that's the process that is replaying the journal..
> > 
> > Regards
> > Josef
> > _______________________________________________
> > ceph-users mailing list -- ceph-users@xxxxxxx
> > To unsubscribe send an email to ceph-users-leave@xxxxxxx
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx




[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