hi ,there are 4 cases in my application to use pacemaker
case 1: one tomcat unexpected down ,restart it by pacemaker.
case 2: one tomcat served machine unexpected down ,fail over to another
machine,back if it recover.
case 3: some tomcat only run on some special nodes ,the others cant monitor
it.
case 4: one server application runs only after some application started , it
means runs by order.
first i try to exam case 1.
i built a 4 nodes environment to test it ,and standby three nodes .like this
============
Last updated: Fri Jan 15 11:57:49 2010
Stack: openais
Current DC: bak1 - partition with quorum
Version: 1.0.5-3840e6b5a305ccb803d29b468556739e75532d56
4 Nodes configured, 4 expected votes
1 Resources configured.
============
Node bak1: standby
Node test1: standby
Node test2: standby
Online: [ ubuntu ]
and tomcat lsb script i use the example from the doc on wiki. it started on
node ubuntu like this "*sudo sh /etc/init.d/tomcatpace start*" no problem.
crm configure :
node bak1 \
attributes standby="on"
node test1 \
attributes standby="on"
node test2 \
attributes standby="on"
node ubuntu
primitive tomcat lsb:tomcatpace \
op monitor interval="10" timeout="30s" \
meta migration-threshold="10" target-role="Started"
first i think only ubuntu is online ,so the script only run on ubuntu ,is it
right?
but it fails .it seems to be all the nodes running the script.
Node bak1: standby
Node test1: standby
Node test2: standby
Online: [ ubuntu ]
tomcat (lsb:tomcatpace) Started [ bak1 test1 test2 ]
Failed actions:
tomcat_monitor_0 (node=bak1, call=2, rc=254, status=complete): <unknown>
tomcat_stop_0 (node=bak1, call=3, rc=254, status=complete): <unknown>
tomcat_monitor_0 (node=test1, call=2, rc=254, status=complete):
<unknown>
tomcat_stop_0 (node=test1, call=3, rc=254, status=complete): <unknown>
tomcat_monitor_0 (node=test2, call=2, rc=254, status=complete):
<unknown>
tomcat_stop_0 (node=test2, call=3, rc=254, status=complete): <unknown>
then i added location rule ,but i am not sure about the usage of it ,so i
followed the example .
location prefer-ubuntu tomcat \
rule $id="prefer-rule" 100: #uname eq ubuntu
is the line to prefer ubuntu node ,and only run on that node ? current
configure :
node bak1 \
attributes standby="on"
node test1 \
attributes standby="on"
node test2 \
attributes standby="on"
node ubuntu
primitive tomcat lsb:tomcatpace \
op monitor interval="10" timeout="30s" \
meta migration-threshold="10" target-role="Started"
location prefer-ubuntu tomcat \
rule $id="prefer-rule" 100: #uname eq ubuntu
but it fails again
Node bak1: standby
Node test1: standby
Node test2: standby
Online: [ ubuntu ]
tomcat (lsb:tomcatpace) Started [ bak1 test1 test2 ]
Failed actions:
tomcat_monitor_0 (node=bak1, call=2, rc=254, status=complete): <unknown>
tomcat_stop_0 (node=bak1, call=3, rc=254, status=complete): <unknown>
tomcat_monitor_0 (node=test1, call=2, rc=254, status=complete): <unknown>
tomcat_stop_0 (node=test1, call=3, rc=254, status=complete): <unknown>
tomcat_monitor_0 (node=test2, call=2, rc=254, status=complete): <unknown> )
thanks for any help .
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems
