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Pacemaker - Corosync - HA - Simple Custom Resource Testing - Status flapping - Started - Failed - Stopped - Started

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I am testing using the OCF:Heartbeat:Dummy script and I want to make a very basic setup just to know it works and build on that. The only information I can find was this web blog here. https://raymii.org/s/tutorials/Corosync_Pacemaker_-_Execute_a_script_on_failover.html It has some typos but basically worked for me. The script currently just contains the following : sudo nano /usr/local/bin/failover.sh && sudo chmod +x /usr/local/bin/failover.sh #!/bin/sh touch /tmp/testfailover.sh Here is my setup : cp /usr/lib/ocf/resource.d/heartbeat/Dummy /usr/lib/ocf/resource.d/heartbeat/FailOverScript sudo nano /usr/lib/ocf/resource.d/heartbeat/FailOverScript dummy_start() { dummy_monitor /usr/local/bin/failover.sh if [ $? = $OCF_SUCCESS ]; then return $OCF_SUCCESS fi touch ${OCF_RESKEY_state} } sed -i 's/Dummy/FailOverScript/g' /usr/lib/ocf/resource.d/heartbeat/FailOverScript sed -i 's/dummy/FailOverScript/g' /usr/lib/ocf/resource.d/heartbeat/FailOverScript pcs resource create FailOverScript ocf:heartbeat:FailOverScript op monitor interval="30" The only testing I can really do : [root@node2 ~]# /usr/lib/ocf/resource.d/heartbeat/FailOverScript start ; echo $? DEBUG: default start : 0 0 ocf-tester doesn't seem to exist in the latest HA Software Suite, not really sure how to manually install it, but the script "half works". **The script doesn't need monitoring, its supposed to be very basic, but it seems to be flapping and giving me the following error code. Any idea's what to do?** FailOverScript (ocf::heartbeat:FailOverScript): Started node2 Failed Actions: * FailOverScript_monitor_30000 on node2 'not running' (7): call= 24423, status=complete, exitreason='none', last-rc-change='Tue Aug 16 15:53:50 2016', queued=0ms, exec= 9ms **Example of what I want to do:** Cluster start Script runs "start.sh" Cluster fails over to node2. On node1 script runs "fail.sh" On node2 script runs "start.sh" and vis versa if it fails the other direction. Note: The script does work, I get /tmp/testfailover.sh. I even tried putting another script under dummy_stop to remove the file and that worked, but it just keeps flapping along removing/adding/removing/adding file and starting/failing/stoping/starting etc etc. Thanks for reading!
Asked by FreeSoftwareServers (2682 rep)
Aug 16, 2016, 07:56 PM
Last activity: Dec 21, 2020, 06:56 AM