[Linux-HA] standby does not take over on multiple power failure

[Thomas Åkerblom (HF/EBC)]

Hi.
A have a system with nodes ha-1, ha-2, ha-3, ha-7, ha-8 and standby server ha-9.
When I pull the power cord to ha-7 ha-9 will take over.
Then I insert the power cord again and wait for ha-7 to start.
Sometime during start, close to the start of heartbeat I pull the power cord to ha-8.
ha-9 tries to take over but fails.
Eventually ha-7 is up and running, ha-8 is down (no power) and ha-9 is in standby mode.

If I insert the power cord to ha-8 it will come up but from this point ha-9 will never take over if ha-8 fails again.
If I restart ha-9 the situation is normalized and ha-9 will take over if any of the nodes fail.
This example is valid for all nodes in my system. The priority for ha-9 is to prefer the node with the lowest number (if ha-7 and ha-8 fail simultaneously, it will take over ha-7).
The problem as described seem to occur when pulling the cord to the node with the lower number first (7) and then the node with the higher number (8).
It does not occur the other way around (8 first and then 7), at least it is harder to produce.

I append ha.cf cib.xml, ha-log, ha-debug and /var/log/messages from the standby ha-9.

 <<power 2.zip>> 

 *** Thomas
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