RAC Full cluster outage (almos)

From: LS Cheng <exriscer_at_gmail.com>
Date: Wed, 11 Mar 2009 16:35:41 +0100
Message-ID: <6e9345580903110835t21763ct7bc40ed221bea2bf_at_mail.gmail.com>


A couple of days one of my customers faced a almost full cluster outage in a 2 node RAC on Sun Solaris 10 Sparc (full oracle stack).

The sequence was as follows

  1. node 2 lost private network, interface went down
  2. node 1 evicts noe 2 (as expected)
  3. node 1 then evicts himself
  4. after nodes 1 returned to the cluster and cluster reformed from 1 node to two nodes, node 2 lost private network again and this time eviction occurs in node 2

So it was not really a full cluster outage but the eviction occured one after another so it looked full outage to the users.

My doubt is, in a nodes cluster node 1 always survives which is not in this case. My only theory is node 2 was so ill that it could not reboot the server, node 1 then evicts himself to avoid corruptions.

Any more ideas?




http://www.freelists.org/webpage/oracle-l Received on Wed Mar 11 2009 - 10:35:41 CDT

Original text of this message