[Linux-HA] (drbd) master/slave monitoring operations

[Raoul Bhatia [IPAX]]

hi,

as discussed a couple of days ago, monitoring actions do not "happen"
by themselves. moreover, i learnd, that one has to specify seperate 
monitoring actions for different roles. now my questions are:


1) What is the difference between role="Slave" and role="Started"?

2) Why does my heartbeat setup run amok, when i replace
   <op name="monitor" id="drbd_mysql_mon_normal" interval="5s" 
timeout="10s" role="Started" />

with
   <op name="monitor" id="drbd_mysql_mon_normal" interval="5s" 
timeout="10s" role="Slave" />
   <op name="monitor" id="drbd_mysql_mon_master" interval="5s" 
timeout="11s" role="Master" />

    or when i simply add the master monitor operation?

my logfiles show:
> pengine[27942]: 2007/10/09_10:59:01 WARN: process_pe_message: Transition 840: WARNINGs found during PE processing. PEngine Input stored in: /var/lib/heartbeat/pengine/pe-warn-1886.bz2
> pengine[27942]: 2007/10/09_10:59:01 WARN: native_color: Resource drbd_mysql:1 cannot run anywhere
> pengine[27942]: 2007/10/09_10:59:01 WARN: native_color: Resource mysql-server cannot run anywhere
> crmd[27938]: 2007/10/09_10:59:01 ERROR: cancel_op_key: No known drbd_mysql:0_monitor_5000 operation to cancel
> tengine[27941]: 2007/10/09_10:59:01 WARN: status_from_rc: Action cancel on webcluster01 failed (target: 8 vs. rc: 0): Error
> tengine[27941]: 2007/10/09_10:59:01 WARN: update_failcount: Updating failcount for drbd_mysql:0 on 49e81295-8e2f-4aeb-98f3-a14de6f62298 after failed monitor: rc=0
> pengine[27942]: 2007/10/09_10:59:01 WARN: process_pe_message: Transition 841: WARNINGs found during PE processing. PEngine Input stored in: /var/lib/heartbeat/pengine/pe-warn-1887.bz2

i attached the cib.xml file

3) and last but not least, why are the roles for <op .. /> written with
a big first letter (Started instead of started)? as far as i can see,
this is one of few cases where case matters. :)

thank you,
raoul
-- 
____________________________________________________________________
DI (FH) Raoul Bhatia M.Sc.          email.          r.bhatia at ipax.at
Technischer Leiter

IPAX - Aloy Bhatia Hava OEG         web.          http://www.ipax.at
Barawitzkagasse 10/2/2/11           email.            office at ipax.at
1190 Wien                           tel.               +43 1 3670030
FN 277995t HG Wien                  fax.            +43 1 3670030 15
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