On 5/21/07, Thomas Åkerblom (HF/EBC) <[EMAIL PROTECTED]> wrote:
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.
first question - version?
I append ha.cf cib.xml, ha-log, ha-debug and /var/log/messages from the standby
ha-9.
unfortunately i need the logs from the machine making the decisions - the DC.
you can find out which machine this is by running:
crmadmin -D
if you send me the logs from there i'll be able to help you more.
<<power 2.zip>>
and in case you're interested
<rsc_location id="run_group_lim8" rsc="group_lim8">
<rule id="pref_run_group_lim8" score="100" boolean_op="and">
<expression id="exp_pref_run_group_lim8" attribute="#uname"
operation="eq" value="ha-8"/>
</rule>
</rsc_location>
<rsc_location id="run_group_lim8_Sby1" rsc="group_lim8">
<rule id="pref_run_group_lim8_Sby1" score="50" boolean_op="and">
<expression id="exp_pref_run_group_lim8_Sby1"
attribute="#uname" operation="eq" value="ha-9"/>
</rule>
</rsc_location>
can be written slightly shorter as:
<rsc_location id="run_group_lim8" rsc="group_lim8">
<rule id="pref_run_group_lim8" score="100" boolean_op="and">
<expression id="exp_pref_run_group_lim8" attribute="#uname"
operation="eq" value="ha-8"/>
</rule>
<rule id="pref_run_group_lim8_Sby1" score="50" boolean_op="and">
<expression id="exp_pref_run_group_lim8_Sby1"
attribute="#uname" operation="eq" value="ha-9"/>
</rule>
</rsc_location>
*** Thomas
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See also: http://linux-ha.org/ReportingProblems
