RedHat Cluster Suite - No Quorum
Hi,
I have a running RedHat cluster with two nodes. On both of the nodes the clustat utility says: Cluster Status - httpd_cluster 14:27:47 Incarnation #1 (This member is not part of the cluster quorum) Member Status ------------------ ---------- wwwb Active wwwa Active <-- You are here No Quorum - Service States Unknown Does somebody know why? The manual is very poor unfortunately, it says nothing about this message: (This member is not part of the cluster quorum) Where can I more info on RedHat Cluster Suite? vamosb |
I encounter the same problem . Fortunately,I have solved it. Format the sharedisk on each node. Until each node can read same file on sharedisk. Then setup the Quorum , it worked. I think this solution is not exactly correct:),just solve the problem.
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Thanks.
What does 'Setup the Quorum' mean for you? |
set th Quorum in clustermanager
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What partition should I format? On the shared disk there are two partition for two raw device. I think I do not need to format them.
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Quote:
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Solved
There was a network problem between the two nodes. After it was resolved, the quorum started.
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That's good news.
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I have a similar problem, in this case we cant see the nodes active at the same time:
Clustat second node: Cluster Status - cluster 10:26:58 Incarnation #1 (This member is not part of the cluster quorum) Member Status ------------------ ---------- 172.16.0.49 Active <-- You are here 172.16.0.48 Inactive No Quorum - Service States Unknown clustat first node Cluster Status - cluster 10:26:42 Cluster Quorum Incarnation #1 Shared State: Shared Raw Device Driver v1.2 Member Status ------------------ ---------- 172.16.0.49 Inactive 172.16.0.48 Active <-- You are here Service Status Owner (Last) Last Transition Chk Restarts -------------- -------- ---------------- --------------- --- -------- second node: [root]# service clumanager status Se está ejecutando clumembd (pid 2673)... Se está ejecutando cluquorumd (pid 2671)... Se está ejecutando clulockd (pid 2678)... clusvcmgrd está parado Note: Service manager is not running because this member is not participating in the cluster quorum. first node [root]# service clumanager status Se está ejecutando clumembd (pid 5547)... Se está ejecutando cluquorumd (pid 5545)... Se está ejecutando clulockd (pid 5552)... Se está ejecutando clusvcmgrd (pid 5577)... However if a run: #/sbin/shutil -p /cluster/header I view the same information in the both nodes Thanks for your advice |
The RedHat cluster suite needs more than 50% of members to start quorum.
If you use Disk Tiebreaker, this resouce give one more point to cluster, but is not recommended to cluster with 2 members. If you have a network problem, you need to give one more point to cluster using "cluforce member_name" see: man cluforce |
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