[Pacemaker] Additional help with ClusterMon

Andrew Beekhof andrew at beekhof.net
Mon Jun 24 09:15:59 UTC 2013 

On 24/06/2013, at 6:29 PM, Michael Furman <michael_furman at hotmail.com> wrote:

> Andrew, 
> I have send the core files attached to mail from Date: Thu, 20 Jun 2013 13:18:04 +0300. Unfortunately the mail server did not sent it.
> Can you look on the mail server?

100s of spam messages but nothing from you.
Please send them to me directly.

> 
> May be you miss my additional question:
> 
> Is it possible in Pacemaker to run one command and get the status of the node in the one value?

What kind of status?

> We do not want to parse the output of the command "pcs status" (run regEx on the output - since it can be changed).
> We want to run one command that will return one value: online or offline (or standby).
> Like
> 
>  pcs status node node_name  
> 
> Thank you for your help!
>  Best regards,
>  Michael
> 
> 
> 
> > From: andrew at beekhof.net
> > Date: Fri, 21 Jun 2013 12:10:36 +1000
> > To: pacemaker at oss.clusterlabs.org
> > Subject: Re: [Pacemaker] Additional help with ClusterMon
> > 
> > 
> > On 20/06/2013, at 8:49 PM, Michael Furman <michael_furman at hotmail.com> wrote:
> > 
> > > Sending the second mail without attachments - the first one with with attachments :)
> > 
> > I don't see the one with attachments.
> > Did you paste the output from gdb in them?
> > 
> > 
> > > 
> > > From: michael_furman at hotmail.com
> > > To: pacemaker at oss.clusterlabs.org
> > > Subject: RE: [Pacemaker] Additional help with ClusterMon
> > > Date: Thu, 20 Jun 2013 13:18:04 +0300
> > > 
> > > Andrew, Thanks for your help!
> > > Please find the core files attached (3 from about 100).
> > > 
> > > pcs status
> > > ...
> > > Version: 1.1.8-7.el6-394e906
> > > 
> > > Installed:
> > > corosync.x86_64 0:1.4.1-15.el6_4.1 
> > > pacemaker.x86_64 0:1.1.8-7.el6
> > > cman.x86_64 0:3.0.12.1-49.el6
> > > 
> > > 
> > > Problematic configuration:
> > > 
> > > pcs resource create ClusterMonScript1 ocf:pacemaker:ClusterMon params user="root" update="1" extra_options="-E /usr/local/bin/example.sh -e 127.0.0.1"
> > > 
> > > Regarding to my problem: is it possible in Pacemaker to run one command and get the status of the node in the one value?
> > > We do not want to parse the output of the command "pcs status".
> > > 
> > > Like 
> > > pcs status node node_name that will return online or offline (or standby).
> > > 
> > > Thank you for your help!
> > > Best regards,
> > > Michael
> > > 
> > > > From: andrew at beekhof.net
> > > > Date: Wed, 19 Jun 2013 12:47:54 +1000
> > > > To: pacemaker at oss.clusterlabs.org
> > > > Subject: Re: [Pacemaker] Additional help with ClusterMon
> > > > 
> > > > 
> > > > On 18/06/2013, at 11:58 PM, Michael Furman <michael_furman at hotmail.com> wrote:
> > > > 
> > > > > I was able to run the ClusterMon agent.
> > > > > 
> > > > > Couple of comments:
> > > > > 1. When I uses ocf:pacemaker:ClusterMon it crashes a lot with the following core file:
> > > > > 
> > > > > file core.22992
> > > > > core.22992: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from '/usr/sbin/crm_mon -p /tmp/ClusterMon_ClusterMon.pid -d -i 0 -E /usr/local/bin/e'
> > > > 
> > > > Can you open that file up in gdb and run: where
> > > > That will tell us why it is crashing.
> > > > 
> > > > Also, what version is this?
> > > > 
> > > > > 
> > > > > 2. I required to use ocf:heartbeat:ClusterMon. I found the way to configure it with pcs:
> > > > > pcs resource create ClusterMonScript1 ocf:heartbeat:ClusterMon params user="root" update="30" extra_options="-E /usr/local/bin/example.sh" op monitor on-fail="restart" interval="20"
> > > > > 
> > > > > 
> > > > > Unfortunately, ClusterMon get only resource oriented event. In addition, it does not get event on the node that become stand-by and get the event only on the node that become master.
> > > > 
> > > > Right, someone would have to implement that.
> > > > 
> > > > > 
> > > > > 
> > > > > I want to do get the following events:
> > > > > 1. On the node that become from active to stand-by the event that tell: “the node become from active to stand-by”
> > > > > 
> > > > > 2. On node that become from standby to active the event that tell: “the node become from stand-by to active”
> > > > > 
> > > > > Questions:
> > > > > 
> > > > > 1. How it possible to configure ClusterMon to get such functionality?
> > > > > 2. Is exists other agent that allows me to get events described above?
> > > > > Thanks for your help,
> > > > > Michael
> > > > > 
> > > > > 
> > > > > 
> > > > > From: michael_furman at hotmail.com
> > > > > To: pacemaker at oss.clusterlabs.org
> > > > > Date: Fri, 14 Jun 2013 22:53:55 +0300
> > > > > Subject: Re: [Pacemaker] Is it possible to add to add scripts when active / standby nodes are changed?
> > > > > 
> > > > > Thank you for your hint!
> > > > > I have found everything I need here:
> > > > > http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html-single/Pacemaker_Explained/index.html#idm61451840
> > > > > 
> > > > > 
> > > > > > From: andrew at beekhof.net
> > > > > > Date: Fri, 14 Jun 2013 10:56:36 +1000
> > > > > > To: pacemaker at oss.clusterlabs.org
> > > > > > Subject: Re: [Pacemaker] Is it possible to add to add scripts when active /	standby nodes are changed?
> > > > > > 
> > > > > > Perhaps check out crm_mon --external-agent
> > > > > > 
> > > > > > On 14/06/2013, at 12:47 AM, Michael Furman <michael_furman at hotmail.com> wrote:
> > > > > > 
> > > > > > > Hi all!
> > > > > > > I want to execute some actions when active / standby nodes are changed.
> > > > > > > I want to do the following:
> > > > > > > 1. Send SMTP mail
> > > > > > > 2. Add message to syslog
> > > > > > > 3. Execute my script
> > > > > > > I want to do it in the following cases:
> > > > > > > 1. On the node that become from active to standby
> > > > > > > (May be some action will not work since something bad happens :) )
> > > > > > > 2. On node that become from standby to active
> > > > > > > 
> > > > > > > Is it possible to do with Pacemaker 1.1.8?
> > > > > > > Thanks for your help!
> > > > > > > Michael
> > > > > > > _______________________________________________
> > > > > > > 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://bugs.clusterlabs.org
> > > > > > 
> > > > > > 
> > > > > > _______________________________________________
> > > > > > 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://bugs.clusterlabs.org
> > > > > 
> > > > > _______________________________________________ Pacemaker mailing list:Pacemaker at oss.clusterlabs.orghttp://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://bugs.clusterlabs.org
> > > > > _______________________________________________
> > > > > 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://bugs.clusterlabs.org
> > > > 
> > > > 
> > > > _______________________________________________
> > > > 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://bugs.clusterlabs.org
> > > _______________________________________________
> > > 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://bugs.clusterlabs.org
> > 
> > 
> > _______________________________________________
> > 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://bugs.clusterlabs.org
> _______________________________________________
> 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://bugs.clusterlabs.org

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