RE: [ceph-users] Force an OSD to try to peer

2015-03-31 Thread Somnath Roy
But, do we know why Jumbo frames may have an impact on peering ? In our setup so far, we haven't enabled jumbo frames other than performance reason (if at all). Thanks Regards Somnath -Original Message- From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Robert

Re: [ceph-users] Force an OSD to try to peer

2015-03-31 Thread Robert LeBlanc
At the L2 level, if the hosts and switches don't accept jumbo frames, they just drop them because they are too big. They are not fragmented because they don't go through a router. My problem is that OSDs were able to peer with other OSDs on the host, but my guess is that they never sent/received

RE: [ceph-users] Force an OSD to try to peer

2015-03-31 Thread Sage Weil
On Tue, 31 Mar 2015, Somnath Roy wrote: But, do we know why Jumbo frames may have an impact on peering ? In our setup so far, we haven't enabled jumbo frames other than performance reason (if at all). It's nothing specific to peering (or ceph). The symptom we've seen is just that byte stop