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[Linux-cluster] Node will not join cluster.



I have a two node cluster on RHEL4. It was all Update 4, but Red Hat suggested I update the problem node to U5, so now it is mixed.

The problem:
We had a SAN issue last week that took 3 of the 15 LUNs offline. The SAN problem was been fixed, so I tried to rescan the LUNs, and still could not see the LUNs. I restarted one node, and ever since then, it would fail when trying to join the cluster. I disabled the cluster services at boot, and try them manually. Every time I get to CLVMD, it hangs forever. Sometimes I can CTRL-C to break out, sometimes no. There are no relevant messages in /var/log/messages. I have worked with Red Hat and the last thing they suggested was to upgrade the node to U5. I did Tuesday, and it still hangs. I am afraid to take down the other node, because if it does the same thing, I am going to have major problems.

I have also noticed that running lvdisplay, vgdisplay and pvdisplay hang. I am sure it is related. I know dlm and module is loaded.

lock_dlm               47220  0
lock_harness            7216  2 gfs,lock_dlm
dlm                   134404  3 lock_dlm
cman                  139552  11 gfs,lock_dlm,dlm


Any thoughts?

Danny


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