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To kill this heartbeat region without rebooting, you can change the
UUID of your OCFS2 volume:<br>
<blockquote><font face="Courier New, Courier, monospace">tunefs.ocfs2
--uuid-reset=0C4AB55FE9314FA5A9F81652FDB9B22D
/dev/mapper/volgr1-lvol0</font><br>
</blockquote>
and try again:<br>
<blockquote><font face="Courier New, Courier, monospace">ocfs2_hb_ctl
-K -u 0C4AB55FE9314FA5A9F81652FDB9B22D</font></blockquote>
<div class="moz-cite-prefix">On 10/19/2011 05:33 AM, Sunil Mushran
wrote:<br>
</div>
<blockquote cite="mid:4E9DFEB0.9010206@oracle.com" type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">Did you reformat the volume recently? or, when did you format last?
On 10/18/2011 03:13 PM, Laurentiu Gosu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">Let's do it by hand.
rm -rf /sys/kernel/config/cluster/.../heartbeat/*0C4AB55FE9314FA5A9F81652FDB9B22D *
On 10/18/2011 02:52 PM, Laurentiu Gosu wrote:
</pre>
<blockquote type="cite">
<pre wrap=""> 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:
</pre>
<blockquote type="cite">
<pre wrap="">See if this cleans it up.
ocfs2_hb_ctl -K -u 0C4AB55FE9314FA5A9F81652FDB9B22D
On 10/18/2011 02:44 PM, Laurentiu Gosu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">ocfs2_hb_ctl -I -u 0C4AB55FE9314FA5A9F81652FDB9B22D
0C4AB55FE9314FA5A9F81652FDB9B22D: 0 refs
On 10/19/2011 00:43, Sunil Mushran wrote:
</pre>
<blockquote type="cite">
<pre wrap="">ocfs2_hb_ctl -l -u 0C4AB55FE9314FA5A9F81652FDB9B22D
On 10/18/2011 02:40 PM, Laurentiu Gosu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">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:
</pre>
<blockquote type="cite">
<pre wrap="">ls -lR /sys/kernel/config/cluster
What does this return?
On 10/18/2011 02:05 PM, Laurentiu Gosu wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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.
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