-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Joel Becker [04.04.2011 18:15]: > On Mon, Apr 04, 2011 at 03:20:43PM +0200, Jacek Stępniewski wrote: >> Is there anybody who uses o2cb stack with mixed kernels (2.6.37 or more and >> less than 2.6.37)? >> I looks like locking protocol version problem (2.6.37 has 1.1. dlm protocol). >> Is there any patch for this? > > The change is rolling upgrade compatible. If the first machine > to mount is the newer one, the newer protocol is selected. If an older > machine mounts first, the newer machines will join at the older > protocol. > > Joel >
Joel, I think I encountered otherwise :-( In our OCFS2 cluster there are up to 15 active nodes. 7 of them were running yesterday (2 with Oracle Linux, 5 with SLES 11 SP1 + SLE HAE SP1). When applying the last patches of the SLE HAE, the patched nodes talked dlm 1.1 and did not fallback. They silently unmunted three volumes, the fourth volume stayed connected (there was no data on it). In the logs, I found entries like dlm_query_join_proto_check:734 Node 5 wanted to join with DLM locking protocol 1.0, but we have 1.1, disallowing o2net: connection to node vocnod9 (num 5) at 141.65.171.51:7777 shutdown, state 8 o2net: no longer connected to node vocnod9 (num 5) at 141.65.171.51:7777 and node 5 lost access to at least one volume straight after this. Maybe a specialty of SUSE, I don't know. I could not get the nodes to communicate with the rest of the cluster, I had to undo all of the patches provided from HAE SP1-update repo and to reboot before it worked again. Maybe the libdlm3 package was the culprit. I opened a support case at Novell and will report back what they say... Regards, Werner -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAk2fI0AACgkQk33Krq8b42OXKACggP45Psn4/yqUs2TMIY9y8Vlk HxoAn2bGrYhPyuIhXxfNf6fdivSC900R =kKRY -----END PGP SIGNATURE----- _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
