Re: Leap Second cause Cluster crashes for anyone?

From: <Rajesh.Rao_at_jpmchase.com>
Date: Fri, 2 Jan 2009 09:47:42 -0500
Message-ID: <OF6FDE4AA0.35BD4009-ON85257532.0050D97C-85257532.005145D3_at_jpmchase.com>

http://bugs.opensolaris.org/view_bug.do?bug_id=6595936 Oracle bug 5015469 - OPROCD REBOOTS NODE WHEN TIME IS SET BACK BY XNTPD

Some more info. We also use Veritas Clusterware, and apparently, also have oprocd running (which is not the recommended configuration). But we also have experienced it on clusters with no Veritas involved. For that, Oracle recommends "other non-VCS customers need to have CRS 10203 at recent MLR or BP patch + Solairs fix for CR#6595936"

But setting css diagwait from the default value of 0.5 to 13, makes them immune, in either cases. Metalink has a note on setting this, which needs clusterware to be down on all nodes. But can be set only on 10.2.0.3 and above.

Regards
Raj

Bjoern Rost <b.rost_at_portrix.net>
Sent by: oracle-l-bounce_at_freelists.org 01/02/2009 09:35 AM
Please respond to
b.rost_at_portrix.net

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Rajesh.Rao_at_jpmchase.com
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oracle-l_at_freelists.org
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Re: Leap Second cause Cluster crashes for anyone?

Hi Rajesh

On Fri, 2009-01-02 at 15:00, Rajesh.Rao_at_jpmchase.com wrote:
> Nothing in the CRS logs. The OS logs have no messages except for
> Solaris booting up again. For clusters where we had changed the css
> diagwait to 13, no such issues.
>
> Anyone else experience this?

We *might*. I am chasing some crash/reboot issues in a sol10 x64 cluster that I couldn't explain so far. nothing in crs logs, nothing in syslog/messages. Both machines use ntp to update local time. How do I change diagwait?

But then again, i have another (very similar) cluster that does not show these problems.

Bjoern

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Received on Fri Jan 02 2009 - 08:47:42 CST