Thanks for posting this! We see issues like this more often than you'd
think. It's really important too because if you don't figure it out the
natural inclination is to blame Ceph! :)
Mark
On 07/30/2015 12:50 PM, Quentin Hartman wrote:
Just wanted to drop a note to the group that I had my cluster go
sideways yesterday, and the root of the problem was networking again.
Using iperf I discovered that one of my nodes was only moving data at
1.7Mb / s. Moving that node to a different switch port with a different
cable has resolved the problem. It took awhile to track down because
none of the server-side error metrics for disk or network showed
anything was amiss, and I didn't think to test network performance (as
suggested in another thread) until well into the process.
Check networking first!
QH
_______________________________________________
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
