[Pacemaker] [FYI] Required errata for RHEL5

[Pavlos Parissis]

On 19 November 2010 05:21, Keisuke MORI <keisuke.mori+ha at gmail.com> wrote:
> Hi all,
>
> For your information for RedHat users,
>
> As a conclusion of testing in my company, we consider that
> the following errata should be applied on RHEL5.5 or below in order to
> get Pacemaker work more stably.
> http://rhn.redhat.com/errata/RHBA-2010-0764.html
>
> Due to a malfunction in libxml2-2.6.26 which comes with RHEL5.5,
> Pacemaker may fail to update the cib information.
>
> If you saw an error log like this, you're hitting this issue:
> ---
> attrd: [16708]: ERROR: attrd_cib_callback: Update -40 for
> default_ping_set=100 failed: Required data for this CIB API call not
> found
> ---
>
> Or you may get an error from a crm_* command like this:
> ---
> # crm_standby -U node1 -v off
> Please choose from one of the matches above and suppy the 'id' with --attr-id
> ---
>
> It happened only in limited situations as long as we've tested,  but
> technically it randomly happens.
> The bug in libxml2 seems have been already fixed in libxml2-2.6.27 or
> later according to the git log.
>
>
> Related discussions and links:
> http://www.gossamer-threads.com/lists/linuxha/pacemaker/61182
> https://bugzilla.redhat.com/show_bug.cgi?id=613860
> http://git.gnome.org/browse/libxml2/commit/?id=6422d916d929cb8653d950d4b424388a7ea7230d
>
>
> Acknowledgments:
> Many thanks to Hideo Yamauchi and RedHat support for resolving  this issue.
>
>
> I hope it helps to all.
> Thanks,

Thanks for sharing this, I will upgrade libxml2 asap.

Regards,
Pavlos