[Ocfs2-users] no free slots available

[Carl J. Benson]

Thanks again for your help. Well there's a little "gotcha"
that went completely unnoticed when I first formatted the
filesystem -- I specified 4 nodes.

tunefs.ocfs2 will not work unless all the nodes have the
filesystem unmounted. Hmmm... That's too bad.

--Carl Benson

Sunil Mushran wrote:
> $ tunefs.ocfs2 -N <numslots> /dev/sdc1
> 
> Check the man pages  for mkfs.ocfs2 and tunefs.ocfs2. You can also
> refer to the user's guide and the faq.
> 
> Carl J. Benson wrote:
>> Hello.
>>
>> I'm trying to add a fifth openSUSE 11.1 node to my existing
>> cluster of four nodes. My software is:
>>
>> ocfs2-tools-1.4.1-6.9
>> ocfs2console-1.4.1-6.9
>>
>> I used o2cb_ctl to add my new node, "george1", on the existing
>> four nodes, and this was successful. I can do this on george1:
>>
>> /etc/init.d/o2cb load
>> /etc/init.d/o2cb online ocfs2
>> /etc/init.d/o2cb status
>> Driver for "configfs": Loaded
>> Filesystem "configfs": Mounted
>> Stack glue driver: Loaded
>> Stack plugin "o2cb": Loaded
>> Driver for "ocfs2_dlmfs": Loaded
>> Filesystem "ocfs2_dlmfs": Mounted
>> Checking O2CB cluster ocfs2: Online
>> Heartbeat dead threshold = 31
>>   Network idle timeout: 30000
>>   Network keepalive delay: 2000
>>   Network reconnect delay: 2000
>> Checking O2CB heartbeat: Not active
>>
>> When I finally do the mount, each of the other nodes accepts the
>> connection from george1, and it joins the domain. But then it
>> leaves the domain and disconnects, and the ocfs2 is not mounted.
>>
>> My mount command is just this:
>>
>> mount -t ocfs2 /dev/sdc1 /mnt/cpb_clust
>>
>> The mount command gives this error:
>>
>> mount.ocfs2: Invalid argument while mounting /dev/sdc1 on
>> /mnt/cpb_clust. Check 'dmesg' for more information on this error.
>>
>> In /var/log/messages I see this:
>>
>> Feb 12 09:54:14 george1 kernel: (5202,0):ocfs2_find_slot:496 ERROR: no
>> free slots available!
>> Feb 12 09:54:14 george1 kernel: (5202,0):ocfs2_mount_volume:1574 ERROR:
>> status = -22
>>
>> What slot is it looking for?
>>
>> I tried rebooting george1; that didn't fix it.