[Pacemaker] primary does not run alone

[Andreas Kurz]

Hello,

On 10/07/2011 04:51 AM, H.Nakai wrote:
> Hi, I'm from Japan, in trouble.
> In the case blow, server which was primary
> sometimes do not run drbd/heartbeat.
> 
> Server A(primary), Server B(secondary) is running.
> Shutdown A and immediately Shutdown B.
> Switch on only A, it dose not run drbd/heartbeat.
> 
> It may happen when one server was broken.
> 
> I'm using,
> drbd83-8.3.8-1.el5
> heartbeat-3.0.5-1.1.el5
> pacemaker-1.0.11-1.2.el5
> resource-agents-3.9.2-1.1.el5
> centos5.6
> Servers are using two LANs(eth0, eth1) and not using serial cable.
> 
> I checked /usr/lib/ocf/resource.d/linbit/drbd,
> and insert some debug codes.
> At drbd_stop(), in while loop,
> only when "Unconfigured", break and call maybe_outdate_self().
> But sometimes, $OCF_RESKEY_CRM_meta_notify_master_uname or
> $OCF_RESKEY_CRM_meta_notify_promote_uname are not null.
> So, at maybe_outdate_self(), it is going to set "outdate".
> And, it always show warning messages below. But, "outdated" flag is set.
> "State change failed: Disk state is lower than outdated"
> " state = { cs:StandAlone ro:Secondary/Unknown ds:Diskless/DUnknown r--- }"
> "wanted = { cs:StandAlone ro:Secondary/Unknown ds:Outdated/DUnknown r--- }"
> 
> I do not want to be set outdated flag, when shutdown both of them.
> I want to know what program set $OCF_RESKEY_CRM_* variables,
> with what condition set these variables,
> and when these variables are set.

you need a newer OCF resource agent, at least from DRBD 8.3.9. There was
the new parameter "stop_outdates_secondary" (defaults to true)
introduced ... set this to false to change the behavior of your setup
and be warned: this increases the change to come up with old (outdated)
data.

Regards,
Andreas

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> 
> Thanks,
> 
> Nickey
> 
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