[Pacemaker] [Problem]A monitor of Master stops when crm command repeat the movement of the resource.

[renayama19661014 at ybb.ne.jp]

Hi All,

This phenomenon sometimes produced even 1.0.10.

The cause seems to be to have performed pending of the cancellation of the monitor lrmd.
Therefore, the active information of the monitor is left in the inside of cib.

Best Regards,
Hideo Yamauchi.

--- On Tue, 2011/11/8, renayama19661014 at ybb.ne.jp <renayama19661014 at ybb.ne.jp> wrote:

> Hi All,
> 
> 
> We tested the movement of the resource in Master/Slave.
> 
> ============
> Last updated: Tue Nov  8 14:12:23 2011
> Stack: Heartbeat
> Current DC: bl460g1b (1b34eec8-1d62-488b-a7fb-8e4b38f95ec3) - partition with quorum
> Version: 1.0.11-9af47ddebcad19e35a61b2a20301dc038018e8e8
> 2 Nodes configured, unknown expected votes
> 3 Resources configured.
> ============
> 
> Online: [ bl460g1a bl460g1b ]
> 
>  Resource Group: master-group
>      vip-master (ocf::heartbeat:Dummy): Started bl460g1a
>      vip-rep    (ocf::heartbeat:Dummy): Started bl460g1a
>  Master/Slave Set: msPostgresql
>      Masters: [ bl460g1a ]
>      Slaves: [ bl460g1b ]
>  Clone Set: clnPingCheck
>      Started: [ bl460g1a bl460g1b ]
> 
> Migration summary:
> * Node bl460g1b: 
> * Node bl460g1a: 
> 
> 
> I change monitor handling of Stateful RA.
> (snip)
> stateful_monitor() {
> echo "Stateful monitor" >> /tmp/test.log
>     stateful_check_state "master"
> (snip)
> 
> I repeat movement in the following script.
> 
> #!/bin/sh
> i=1
> while [ 1 ]; do
>   echo "##############################" >> /tmp/test.log
>   echo "move $i"
>   crm resource move vip-rep
>   echo "sleep"
>   sleep 60
>   crm resource unmove vip-rep
>   i=`expr $i + 1`
> done;
> 
> 
> The phenomenon that a monitor of Master is not carried out occurs when I repeat movement in a script for a while.
> (A problem reappears at considerable frequency when it continues carrying away a script.)
> 
> 
> This problem seems to happen in both 1.0 most recent versions and 1.0.11 version.
> 
>  * Pacemaker-1-0-9af47ddebcad
>  * Pacemaker-1-0-6e010d6b0d49 
> 
> 
> A stop of the monitors is a problem very much.
> I request improvement.
> 
> I register these contents and hb_report with Bugzilla.
> 
>  * http://bugs.clusterlabs.org/show_bug.cgi?id=5010
> 
> 
> Best Regards,
> Hideo Yamauchi.
> 
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>