[Pacemaker] Pacemaker 1.0.8 and -INFINITY master score

Bob Schatz bschatz at yahoo.com
Fri Aug 13 21:00:28 EDT 2010 

Dejan,

I tested this with 1.0.9.1.   If a negative master score is set then it does not 
call promote.  Thanks!

However,  I still see notifications messages as shown below but it does not 
appear that the actual notification entry point is called in the agent.
If you agree, I will file a bug.

Aug 13 17:02:20 mgraid-MGG000090106M6T-0 pengine: [4463]: info: master_color: 
ms-SSJ5AMGG000090106M6T: Promoted 0 instances of a possible 1 to master

Aug 13 17:03:34 mgraid-MGG000090106M6T-0 crmd: [1102]: info: te_rsc_command: 
Initiating action 44: notify SSJ5AMGG000090106M6T:0_pre_notify_promote_0 on 
mgraid-mgg000090106m6t-1

Aug 13 17:02:20 mgraid-MGG000090106M6T-0 pengine: [4463]: ERROR: 
create_notification_boundaries: Creating boundaries for ms-SSJ5AMGG000090106M6T
Aug 13 17:02:20 mgraid-MGG000090106M6T-0 pengine: [4463]: ERROR: 
create_notification_boundaries: Creating boundaries for ms-SSJ5AMGG000090106M6T
Aug 13 17:02:20 mgraid-MGG000090106M6T-0 pengine: [4463]: ERROR: 
create_notification_boundaries: Creating boundaries for ms-SSJ5AMGG000090106M6T
Aug 13 17:02:20 mgraid-MGG000090106M6T-0 pengine: [4463]: ERROR: 
create_notification_boundaries: Creating boundaries for ms-SSJ5AMGG000090106M6T

Aug 13 17:03:38 mgraid-MGG000090106M6T-0 crmd: [1102]: info: te_rsc_command: Ini
tiating action 8: promote SSJ5AMGG000090106M6T:0_promote_0 on mgraid-mgg00009010
6m6t-1
Aug 13 17:03:40 mgraid-MGG000090106M6T-0 crmd: [1102]: info: match_graph_event:
Action SSJ5AMGG000090106M6T:0_promote_0 (8) confirmed on mgraid-mgg000090106m6t-
1 (rc=0)
Aug 13 17:03:41 mgraid-MGG000090106M6T-0 crmd: [1102]: info: te_rsc_command: Ini
tiating action 45: notify SSJ5AMGG000090106M6T:0_post_notify_promote_0 on mgraid
-mgg000090106m6t-1
Aug 13 17:03:43 mgraid-MGG000090106M6T-0 crmd: [1102]: info: match_graph_event:
Action SSJ5AMGG000090106M6T:0_post_notify_promote_0 (45) confirmed on mgraid-mgg
000090106m6t-1 (rc=0)


Thanks,

Bob



----- Original Message ----
From: Bob Schatz <bschatz at yahoo.com>
To: The Pacemaker cluster resource manager <pacemaker at oss.clusterlabs.org>
Sent: Fri, August 13, 2010 9:25:08 AM
Subject: Re: [Pacemaker] Pacemaker 1.0.8 and -INFINITY master score

Dejan,

Thanks for the quick response!

Comments below with [BS]

----- Original Message ----
From: Dejan Muhamedagic <dejanmm at fastmail.fm>
To: The Pacemaker cluster resource manager <pacemaker at oss.clusterlabs.org>
Sent: Fri, August 13, 2010 3:03:49 AM
Subject: Re: [Pacemaker] Pacemaker 1.0.8 and -INFINITY master score

Hi,

On Thu, Aug 12, 2010 at 12:54:10PM -0700, Bob Schatz wrote:
> I upgraded to Pacemaker 1.0.8 since my application consists of Master/Slave 
> resources and I wanted to pick up the fix for setting negative master scores.

Why not to 1.0.9.1?


[BS] Because when I checked the 
link http://www.clusterlabs.org/wiki/Get_Pacemaker 
         it seemed to indicated that 1.0.8 was the last one fully tested with 
the rest of the stack
         (heartbeat, etc).   Are there fixes in 1.0.9 in this area?  I generally 

am conservative about
upgrading HA software until it has been out a while.  :)

> I am now able to set negative master scores when a resources starts and is 
>SLAVE 
>
> but can't be promoted.  (The reason I want this is the process needs an 
> administrative override and has to be up and running for the administrative 
> override.)
> 
> However, when I test this on a one node cluster I see that the resource loops 
> through the cycle (attempt promote, timeout, stop the resource, start the 
> resource, ...).
> 
> I would have thought that a master score of -INFINITY would have prevented the 


> promotion.

Yes, sounds like it. Where is the score set? Wouldn't "resource
demote" do the right thing?

[BS] I used the ~October 2009 DRBD agent as a reference.  The "crm_master -Q -l 
reboot -v -10"
        call is made at the end of the start() entry point in the agent.
         I am not sure what you mean by "resource demote"

> My configuration is:
> 
> node $id="f4e5e15c-d06b-4e37-89b9-4621af05128f" mgraid-bob00001-0
> primitive SSJ5AMKP00009010REPK ocf:omneon:ss \
>     params ss_resource="SSJ5AMKP00009010REPK" 
> ssconf="/var/omneon/config/config.J5AMKP00009010REPK" \
>     op monitor interval="3s" role="Master" timeout="7s" \
>     op monitor interval="10s" role="Slave" timeout="7" \
>     op stop interval="0" timeout="100" \
>     op start interval="0" timeout="120" \
>     meta id="SSJ5AMKP00009010REPK-meta_attributes"
> ms ms-SSJ5AMKP00009010REPK SSJ5AMKP00009010REPK \
>     meta clone-max="2" notify="true" globaally-unique="false" 

You have a typo here.

[BS] AH!!!  I owe you at least one drink for that!!!


Thanks,

Bob

Thanks,

Dejan

> target-role="Master"
> location ms-SSJ5AMKP00009010REPK-master-w1 ms-SSJ5AMKP00009010REPK \
>     rule $id="ms-SSJ5AMKP00009010REPK-master-w1-rule" $role="master" 100: 
>#uname 
>
> eq mgraid-BOB00001-0
> property $id="cib-bootstrap-options" \
>     dc-version="1.0.8-9881a7350d6182bae9e8e557cf20a3cc5dac3ee7" \
>     cluster-infrastructure="Heartbeat" \
>     stonith-enabled="false"
> 
> Is this the expected behavior?
> 
> 
> Thanks,
> 
> Bob
> 
> 
> 
>      
> 
> 
> _______________________________________________
> 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

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Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker



      


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