[Ocfs2-users] Unable to stop cluster as heartbeat region still active

Sunil Mushran sunil.mushran at oracle.com
Tue Oct 18 15:33:20 PDT 2011 

One way this can happen is if one starts the hb manually and then force
formats on that volume. The format will generate a new uuid. Once that
happens, the hb tool cannot map the region to the device and thus fail
to stop it. Right now the easiest option on this box is resetting it.

On 10/18/2011 03:24 PM, Laurentiu Gosu wrote:
> Yes, i did reformat it(even more than once i think, last week). This is a pre-production system and i'm trying various options before moving into real life.
>
>
> On 10/19/2011 01:19, Sunil Mushran wrote:
>> Did you reformat the volume recently? or, when did you format last?
>>
>> On 10/18/2011 03:13 PM, Laurentiu Gosu wrote:
>>> well..this is weird
>>> ls /sys/kernel/config/cluster/CLUSTER/heartbeat/
>>> *918673F06F8F4ED188DDCE14F39945F6*  dead_threshold
>>>
>>> looks like we have different UUIDs. Where is this coming from??
>>>
>>> ocfs2_hb_ctl -I -u 918673F06F8F4ED188DDCE14F39945F6
>>> 918673F06F8F4ED188DDCE14F39945F6: 1 refs
>>>
>>>
>>> On 10/19/2011 01:04, Sunil Mushran wrote:
>>>> Let's do it by hand.
>>>> rm -rf /sys/kernel/config/cluster/.../heartbeat/*0C4AB55FE9314FA5A9F81652FDB9B22D *
>>>>
>>>> On 10/18/2011 02:52 PM, Laurentiu Gosu wrote:
>>>>>  ocfs2_hb_ctl -K -u 0C4AB55FE9314FA5A9F81652FDB9B22D
>>>>> ocfs2_hb_ctl: File not found by ocfs2_lookup while stopping heartbeat
>>>>>
>>>>> No improvment :(
>>>>>
>>>>>
>>>>> On 10/19/2011 00:50, Sunil Mushran wrote:
>>>>>> See if this cleans it up.
>>>>>> ocfs2_hb_ctl -K -u 0C4AB55FE9314FA5A9F81652FDB9B22D
>>>>>>
>>>>>> On 10/18/2011 02:44 PM, Laurentiu Gosu wrote:
>>>>>>> ocfs2_hb_ctl -I -u 0C4AB55FE9314FA5A9F81652FDB9B22D
>>>>>>> 0C4AB55FE9314FA5A9F81652FDB9B22D: 0 refs
>>>>>>>
>>>>>>>
>>>>>>> On 10/19/2011 00:43, Sunil Mushran wrote:
>>>>>>>> ocfs2_hb_ctl -l -u 0C4AB55FE9314FA5A9F81652FDB9B22D
>>>>>>>>
>>>>>>>> On 10/18/2011 02:40 PM, Laurentiu Gosu wrote:
>>>>>>>>> mounted.ocfs2 -d
>>>>>>>>> Device                FS     Stack  UUID                              Label
>>>>>>>>> /dev/mapper/volgr1-lvol0  ocfs2  o2cb   0C4AB55FE9314FA5A9F81652FDB9B22D  ocfs2
>>>>>>>>>
>>>>>>>>> mounted.ocfs2 -f
>>>>>>>>> Device                FS     Nodes
>>>>>>>>> /dev/mapper/volgr1-lvol0  ocfs2  ro02xsrv001
>>>>>>>>>
>>>>>>>>> ro02xsrv001 = the other node in the cluster.
>>>>>>>>>
>>>>>>>>> By the way, there is no /dev/md-2
>>>>>>>>>  ls /dev/dm-*
>>>>>>>>> /dev/dm-0  /dev/dm-1
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 10/19/2011 00:37, Sunil Mushran wrote:
>>>>>>>>>> So it is not mounted. But we still have a hb thread because
>>>>>>>>>> hb could not be stopped during umount. The reason for that
>>>>>>>>>> could be the same that causes ocfs2_hb_ctl to fail.
>>>>>>>>>>
>>>>>>>>>> Do:
>>>>>>>>>> mounted.ocfs2 -d
>>>>>>>>>>
>>>>>>>>>> On 10/18/2011 02:32 PM, Laurentiu Gosu wrote:
>>>>>>>>>>> ls -lR /sys/kernel/debug/ocfs2
>>>>>>>>>>> /sys/kernel/debug/ocfs2:
>>>>>>>>>>> total 0
>>>>>>>>>>>
>>>>>>>>>>> ls -lR /sys/kernel/debug/o2dlm
>>>>>>>>>>> /sys/kernel/debug/o2dlm:
>>>>>>>>>>> total 0
>>>>>>>>>>>
>>>>>>>>>>> ocfs2_hb_ctl -I -d /dev/dm-2
>>>>>>>>>>> ocfs2_hb_ctl: Device name specified was not found while reading uuid
>>>>>>>>>>>
>>>>>>>>>>> There is no /dev/dm-2 mounted.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 10/19/2011 00:27, Sunil Mushran wrote:
>>>>>>>>>>>> mount -t debugfs debugfs /sys/kernel/debug
>>>>>>>>>>>>
>>>>>>>>>>>> Then list that dir.
>>>>>>>>>>>>
>>>>>>>>>>>> Also, do:
>>>>>>>>>>>> ocfs2_hb_ctl -l -d /dev/dm-2
>>>>>>>>>>>>
>>>>>>>>>>>> Be careful before killing. We want to be sure that dev is not mounted.
>>>>>>>>>>>>
>>>>>>>>>>>> On 10/18/2011 02:23 PM, Laurentiu Gosu wrote:
>>>>>>>>>>>>> Again   the outputs:
>>>>>>>>>>>>>  cat /sys/kernel/config/cluster/CLUSTER/heartbeat/918673F06F8F4ED188DDCE14F39945F6/dev
>>>>>>>>>>>>> dm-2
>>>>>>>>>>>>> --->here should be volgr1-lvol0 i guess?
>>>>>>>>>>>>>
>>>>>>>>>>>>> ls -lR /sys/kernel/debug/ocfs2
>>>>>>>>>>>>> ls: /sys/kernel/debug/ocfs2: No such file or directory
>>>>>>>>>>>>>
>>>>>>>>>>>>> ls -lR /sys/kernel/debug/o2dlm
>>>>>>>>>>>>> ls: /sys/kernel/debug/o2dlm: No such file or directory
>>>>>>>>>>>>>
>>>>>>>>>>>>> I think i have to enable debug first somehow..?
>>>>>>>>>>>>>
>>>>>>>>>>>>> Laurentiu.
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 10/19/2011 00:17, Sunil Mushran wrote:
>>>>>>>>>>>>>> What does this return?
>>>>>>>>>>>>>> cat /sys/kernel/config/cluster/CLUSTER/heartbeat/918673F06F8F4ED188DDCE14F39945F6/dev
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Also, do:
>>>>>>>>>>>>>> ls -lR /sys/kernel/debug/ocfs2
>>>>>>>>>>>>>> ls -lR /sys/kernel/debug/o2dlm
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 10/18/2011 02:14 PM, Laurentiu Gosu wrote:
>>>>>>>>>>>>>>> Here is the output:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> ls -lR /sys/kernel/config/cluster
>>>>>>>>>>>>>>> /sys/kernel/config/cluster:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> drwxr-xr-x 4 root root 0 Oct 19 00:12 CLUSTER
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 fence_method
>>>>>>>>>>>>>>> drwxr-xr-x 3 root root    0 Oct 19 00:12 heartbeat
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 idle_timeout_ms
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 keepalive_delay_ms
>>>>>>>>>>>>>>> drwxr-xr-x 4 root root    0 Oct 11 20:23 node
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 reconnect_delay_ms
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER/heartbeat:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> drwxr-xr-x 2 root root    0 Oct 19 00:12 918673F06F8F4ED188DDCE14F39945F6
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 dead_threshold
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER/heartbeat/*918673F06F8F4ED188DDCE14F39945F6*:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 block_bytes
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 blocks
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 dev
>>>>>>>>>>>>>>> -r--r--r-- 1 root root 4096 Oct 19 00:12 pid
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 start_block
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER/node:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> drwxr-xr-x 2 root root 0 Oct 19 00:12 ro02xsrv001
>>>>>>>>>>>>>>> drwxr-xr-x 2 root root 0 Oct 19 00:12 ro02xsrv002
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER/node/ro02xsrv001:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 ipv4_address
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 ipv4_port
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 local
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 num
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /sys/kernel/config/cluster/CLUSTER/node/ro02xsrv002:
>>>>>>>>>>>>>>> total 0
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 ipv4_address
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 ipv4_port
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 local
>>>>>>>>>>>>>>> -rw-r--r-- 1 root root 4096 Oct 19 00:12 num
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 10/19/2011 00:12, Sunil Mushran wrote:
>>>>>>>>>>>>>>>> ls -lR /sys/kernel/config/cluster
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> What does this return?
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On 10/18/2011 02:05 PM, Laurentiu Gosu wrote:
>>>>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>>>> I have a 2 nodes ocfs2 cluster running UEK 2.6.32-100.0.19.el5,
>>>>>>>>>>>>>>>>> ocfs2console-1.6.3-2.el5, ocfs2-tools-1.6.3-2.el5.
>>>>>>>>>>>>>>>>> My problem is that all the time when i try to run /etc/init.d/o2cb stop
>>>>>>>>>>>>>>>>> it fails with this error:
>>>>>>>>>>>>>>>>>       Stopping O2CB cluster CLUSTER: Failed
>>>>>>>>>>>>>>>>>       Unable to stop cluster as heartbeat region still active
>>>>>>>>>>>>>>>>> There is no active mount point. I tried to manually stop the heartdbeat
>>>>>>>>>>>>>>>>> with "ocfs2_hb_ctl -K -d /dev/mapper/volgr1-lvol0 ocfs2" (after finding
>>>>>>>>>>>>>>>>> the refs number with "ocfs2_hb_ctl -I -d /dev/mapper/volgr1-lvol0 ").
>>>>>>>>>>>>>>>>> But even if refs number is set to zero the "heartbeat region still
>>>>>>>>>>>>>>>>> active" occurs.
>>>>>>>>>>>>>>>>> How can i fix this?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thank you in advance.
>>>>>>>>>>>>>>>>> Laurentiu.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>> Ocfs2-users mailing list
>>>>>>>>>>>>>>>>> Ocfs2-users at oss.oracle.com
>>>>>>>>>>>>>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20111018/baa431ec/attachment.html

More information about the Ocfs2-users mailing list