[Linux-cluster] Cluster node hangs

[Elvir Kuric]

On 02/13/2011 10:41 AM, Elvir Kuric wrote:
> On 02/13/2011 10:14 AM, Sachin Bhugra wrote:
>> Hi ,
>>
>> I have setup a two node cluster in lab, with Vmware Server, and hence 
>> used manual fencing. It includes a iSCSI GFS2 partition and it 
>> service Apache in Active/Passive mode.
>>
>> Cluster works and I am able to relocate service between nodes with no 
>> issues. However, the problem comes when I shutdown the node, for 
>> testing, which is presently holding the service. When the node 
>> becomes unavailable, service gets relocated and GFS partition gets 
>> mounted on the other node, however it is not accessible. If I try to 
>> do a "ls/du" on GFS partition, the command hangs. On the other hand 
>> the node which was shutdown gets stuck at "unmounting file system".
>>
>> I tried using fence_manual -n nodename and then fence_ack_manual -n 
>> nodename, however it still remains the same.
>>
>> Can someone please help me is what I am doing wrong?
>>
>> Thanks,
>>
>>
>> --
>> Linux-cluster mailing list
>> Linux-cluster at redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-cluster
> It would be good to see  /etc/fstab configuration used on cluster 
> nodes. If /gfs partition is mounted manually it will not be unmounted 
> correctly in case you restart node ( and not executing umount prior 
> restart ), and will hang during shutdown/reboot process.
>
> More at: 
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Global_File_System_2/index.html

Edit: above link, section 3.4Special Considerations when Mounting GFS2 
File Systems
>
>
> Regards,
>
> Elvir
>

>
>
> --
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> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster

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