topic Re: RHEL cluster issue on two node - Urgent in Operating System - Linux

RHEL cluster issue on two node - Urgent

AVV — Wed, 07 Jul 2010 17:04:47 GMT

Hi ,

I am building a two node cluster (each node with rhel 5.3 64 bit with cluster suit). But I could see the qdisk coming offline after cman starts. I am attaching the cluster.conf file here with. Please do let me know if there is any issue especially on voting procedure.

Re: RHEL cluster issue on two node - Urgent

AVV — Wed, 07 Jul 2010 17:05:48 GMT

Attaching the cluster.conf file

Re: RHEL cluster issue on two node - Urgent

Reto Kisseleff — Thu, 08 Jul 2010 06:55:03 GMT

Hi

I think the problem could be related to the amount of score of your heuristic script.
The score of the heuristic script should be at least the amount of minimum score of your quorum. Otherwise quorum doesn't work.
cheers
Reto

Re: RHEL cluster issue on two node - Urgent

Matti_Kurkela — Thu, 08 Jul 2010 07:47:40 GMT

Kisseleff is right: you have only one heuristic for quorumd, giving a score of 1 point. With that, quorumd will never reach the min_score of 3, so it will never cast its 3 quorum votes.

Recommendation: either set min_score to 1, or increase the score value of your ping heuristic to 3.

I also see your cman tag is empty. As your total number of votes is 5, I would have expected to see:

instead of just "". But fix the quorumd score problem first: once this cman line is in place, your cluster won't ever achieve quorum without the votes given by quorumd.

(When a two-node cluster is using quorumd, there is no need for special two-node mode, so you should set 'two_node="0"'.)

MK

Re: RHEL cluster issue on two node - Urgent

AVV — Thu, 08 Jul 2010 10:49:18 GMT

Hi Matti,

Thank you for the reply...The below would be okay ?

Re: RHEL cluster issue on two node - Urgent

Matti_Kurkela — Thu, 08 Jul 2010 11:36:56 GMT

Looks good to me.

MK

Re: RHEL cluster issue on two node - Urgent

AVV — Wed, 05 Jan 2011 06:51:53 GMT

Thanks