2013/7/22 Chen, Xiaoxi <xiaoxi.c...@intel.com>:
> With “journal writeahead”,the data first write to journal ,ack to the
> client, and write to OSD, note that, the data always keep in memory before
> it write to both OSD and journal,so the write is directly from memory to
> OSDs. This mode suite for XFS and EXT4.

What happens in case of journal failure during a write (to the
journal, not to the OSDs) ?
Is ceph smart enough to retry the write to another OSDs/Journal ?

And what happens in case of server failure during a write?

I'm asking this to evaluate if journals on RAM disks will be good or not.
_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

Reply via email to