[Ocfs2-users] problem stopping o2cb service on one of nodes

[Sunil Mushran]

Email me the ouput of:
$ mounted.ocfs2 -d

Also, does hb stop using uuid work?
$ ocfs2_hb_ctl -K -u <uuid> o2cb

Lastly, what versions of the fs, tools, kernel?

On Apr 4, 2009, at 1:24 AM, Nikola Ciprich <extmaillist at linuxbox.cz>  
wrote:

> Hi,
> it says:
> /sbin/ocfs2_hb_ctl
> on both nodes, which's correct - the binary is there...
> n.
>
> On Fri, Apr 03, 2009 at 02:27:34PM -0700, Sunil Mushran wrote:
>> Do:
>> $ cat /proc/sys/fs/ocfs2/nm/hb_ctl_path
>>
>>
>> Nikola Ciprich wrote:
>>> Hi Sunil,
>>> thanks for reply..
>>> I don't observe any segfaults...
>>> regarding info You want, as I wrote, umount doesn't decrease  
>>> refcount...:
>>>
>>> [root at vbox4 ~]# ocfs2_hb_ctl -I -d /dev/vgshared/lvs
>>> 2A5D351D0A934061BBC6B5392A30187E: 1 refs
>>> [root at vbox4 ~]# umount /home/LVS
>>> [root at vbox4 ~]# ocfs2_hb_ctl -I -d /dev/vgshared/lvs
>>> 2A5D351D0A934061BBC6B5392A30187E: 1 refs
>>>
>>> nik
>>>
>>> On Fri, Apr 03, 2009 at 10:21:33AM -0700, Sunil Mushran wrote:
>>>
>>>> umount is supposed to stop the heartbeat. In bz1053, ocfs2_hb_ctl  
>>>> was
>>>> segfaulting.
>>>> Are you seeing any segfaults or any other errors during umount?
>>>>
>>>> Also, run the following before and after umount:
>>>> $ ocfs2_hb_ctl -I -d /dev/sdX o2cb
>>>>
>>>> Email me the output.
>>>>
>>>> Nikola Ciprich wrote:
>>>>
>>>>> Hello Tao,
>>>>> and thanks a lot for reply!
>>>>> It seems not to be the same bug, at least applying the patch  
>>>>> didn't help.
>>>>> stopping hb using -K parameter really helps, but why doesn't  
>>>>> this work automatically
>>>>> on umount?
>>>>> it always happens on the second node...
>>>>> I don't see any error in logs, anything.
>>>>> But the reference count always increases on mount, and doesn't  
>>>>> decrease on umount on this node..
>>>>>
>>>>>
>>>>> On Fri, Apr 03, 2009 at 10:58:18AM +0800, Tao Ma wrote:
>>>>>
>>>>>> Hi Nikola,
>>>>>>
>>>>>> Nikola Ciprich wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>> I'm trying ocfs2 RHEL5 distro, 2.6.29 kernel, ocfstools-1.4.1.  
>>>>>>> I'm using DRBD in primary/primary mode
>>>>>>> as shared storage...
>>>>>>>
>>>>>>> I've configured the service according to quickstart document,  
>>>>>>> and everything works,
>>>>>>> but when I umount fs on both nodes, stopping o2cb service on  
>>>>>>> one of the nodes always
>>>>>>> fails with:
>>>>>>>
>>>>>>> [root at vbox4 sysconfig]# /etc/rc.d/init.d/o2cb stop
>>>>>>> Stopping O2CB cluster vb34: Failed
>>>>>>> Unable to stop cluster as heartbeat region still active
>>>>>>>
>>>>>> It looks that your disk heartbeat is still there. I don't know
>>>>>> the   specific reason, maybe
>>>>>> http://oss.oracle.com/bugzilla/show_bug.cgi?id=1053 ?
>>>>>>
>>>>>> but you can stop it manually.
>>>>>> 1.  ocfs2_hb_ctl -I -d <device>
>>>>>> or ocfs2_hb_ctl -I -u <uuid>
>>>>>> this will tell you the reference number for the hearbeat.
>>>>>> 2.  ocfs2_hb_ctl -K -d <device> <service>
>>>>>>  or  ocfs2_hb_ctl -K -u <uuid> <service>
>>>>>> this will killed the heartbeat manually.
>>>>>> service is the stack you used, and it should be "o2cb" in your  
>>>>>> case.
>>>>>>
>>>>>> btw, you can try cfs2_hb_ctl -K -u <uuid> <service> to see
>>>>>> whether it is  the same problem as bug 1053.
>>>>>>
>>>>>> Regards,
>>>>>> Tao
>>>>>>
>>>
>>>
>>
>
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