[Pacemaker] stopped resource was judged to be active

[Andrew Beekhof]

On 10 Feb 2014, at 5:28 pm, Kazunori INOUE <kazunori.inoue3 at gmail.com> wrote:

> Hi,
> 
> Pacemaker stopped, but it was judged that a resource was active.
> I put crm_report here.
> https://drive.google.com/file/d/0B9eNn1AWfKD4S29JWk1ldUJJNGs/edit?usp=sharing
> 
> [Steps to reproduce]
> 1) start up the cluster
> 
> Stack: corosync
> Current DC: bl460g1n7 (3232261593) - partition with quorum
> Version: 1.1.10-21de3a0
> 2 Nodes configured
> 34 Resources configured
> 
> 
> Online: [ bl460g1n6 bl460g1n7 ]
> 
> Full list of resources:
> ...snip...
> 
> 
> * election-attrd exists in bl460g1n7.
> Feb  4 14:06:38 bl460g1n7 attrd[28811]:     info: election_complete:
> Election election-attrd complete
> 
> 
> 2) banish election-attrd from DC node
> I suppose that it is a condition that there are DC and election-attrd
> in a different node.
> 
> [bl460g1n7]$ pkill -9 attrd
> Feb  4 14:07:15 bl460g1n6 attrd[16927]:     info: election_complete:
> Election election-attrd complete
> 
> 
> 3) stop DC ( after making a resource fail )
> [bl460g1n7]$ stop pacemaker.combined
> Feb  4 14:09:39 bl460g1n7 crmd[28813]:   notice: process_lrm_event:
> LRM operation prmClone9_stop_0 (call=150, rc=0, cib-update=98,
> confirmed=true) ok

There are cases when <= .11 could loose resource updates like this.
The subsequent behaviour by pacemaker (fencing the node) is correct but clearly suboptimal.

Happily the same code that improves the CIB's performance also makes this impossible.
So if you should find this problem gone if you try with the current git master.

> :
> Feb  4 14:09:39 bl460g1n7 pacemakerd[28803]:     info: main: Exiting pacemakerd
> Feb  4 14:09:39 bl460g1n7 pacemakerd[28803]:     info:
> crm_xml_cleanup: Cleaning up memory from libxml2
> 
> * pacemaker of bl460g1n7 stopped normally, but bl460g1n6 judged that a
>  resource was active.
> Feb  4 14:09:41 bl460g1n6 pengine[16928]:  warning: pe_fence_node:
> Node bl460g1n7 will be fenced because prmClone9:0 is thought to be
> active there
> 
> 
> Best regards,
> Kazunori INOUE
> 
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