Re: Failover with 2 nodes

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

 



It's easy. The problem ise OSD's are still up because there is not enough
down mon_osd_min_down_reporters and due to this problem MDS is stucking.

The solution is "mon_osd_min_down_reporters = 1"
Due to "two node" cluster and "replicated 2" with "chooseleaf host"
the reporter count should be set to 1 but on a malfunction this could
be a serious problem. In LAB environment you're fine.



nORKy <joff.au@xxxxxxxxx>, 15 Haz 2021 Sal, 16:18 tarihinde şunu yazdı:

> Hi,
>
> I'm building a lab with virtual machines.
>
> I build a set up with only 2 nodes, 2 osd per nodes and I have a host that
> use mount.cephfs
> Each 2 ceph nodes runs services mon + mgr + mds and has cephadm command.
>
> If I stop a node, all commands hang.
> Can't use dashboard, can't use ceph -s or any ceph command, and my cephfs
> on the third host stop to respond too (ex: with ls command)
> All come back, when I power on the stopped node
>
> Why is there no failover ??
>
> Thanks you
>
> 'Jof
> _______________________________________________
> 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