Hi All,<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal">
<br>
<span style="font-size: 12pt; font-family: "Times New Roman","serif";"><u></u><u></u></span></p>
<p><span style="font-size: 10pt; color: navy;">Below output of the command “<b>fsck /dev/drbd0</b></span><span style="font-size: 8pt;">”
</span><span style="font-size: 10pt; color: navy;">proves that some resource is busy when the issue “Device is held open by someone” is reproduced.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: navy;">
<i><span style="background: silver none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">[</span></i></span><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">root@abaco-a bin]# fsck /dev/drbd0</span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">fsck 1.39 (29-May-2006)</span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">e2fsck 1.39 (29-May-2006)</span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">fsck.ext2: Device or resource busy while trying to open /dev/drbd0</span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">Filesystem mounted or opened exclusively by another program?</span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"> </span></i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left: 0.5in;"><i><span style="background: silver none repeat scroll 0% 0%; font-size: 8pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"> </span></i><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: navy;"> We’ve spent a lot of time to find out, who is holding the resource? But we couldn’t get that.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: navy;"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: navy;"> Please can anybody answer to my following queries. Thank a lot.</span><u></u><u></u></p>
<p><span style="font-size: 10pt; color: navy;">How to find who is holding the resource if fsck shows the above output.</span><u></u><u></u></p>
<p><span style="font-size: 10pt; color: navy;">Is there any way/commands to get resource freed.</span><u></u><u></u></p>
<p><span style="font-size: 10pt; color: navy;">3. How to find out if the problem with the cached data.</span><u></u><u></u></p>
<p><u></u> <u></u></p>
<p>This issue is also reproducible in our case when we do "service network restart".<u></u><u></u></p>
<p> <u></u><u></u></p>
<p class="MsoNormal"><span style="font-size: 12pt; font-family: "Times New Roman","serif";"><br>
Thanks<br>
Dileep<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 12pt; font-family: "Times New Roman","serif";"><br>
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Today's Topics:<br>
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2. Re: DRBD device held open by someone (Sebastian Riemer)<br>
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Message: 2<br>
Date: Thu, 30 Jun 2011 16:25:37 +0200<br>
From: Sebastian Riemer <<a href="mailto:sebastian.riemer@profitbricks.com" target="_blank">sebastian.riemer@profitbricks.com</a>><br>
Subject: Re: [DRBD-user] DRBD device held open by someone<br>
To: <a href="mailto:drbd-user@lists.linbit.com" target="_blank">drbd-user@lists.linbit.com</a><br>
Message-ID: <<a href="mailto:4E0C8761.6070608@profitbricks.com" target="_blank">4E0C8761.6070608@profitbricks.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
And the command "lsof | grep drbd" doesn't return any process which has<br>
opened the device directly?<br>
That's curious not. Could be a problem with cached data perhaps then.<br>
<br>
Regards,<br>
<br>
Sebastian<br>
<br>
<br>
On 30/06/11 16:03, Dileep Nayak wrote:<br>
> Hi Sebastian,<br>
><br>
> Thanks for looking into this.<br>
><br>
> We don't use the Pacemaker and output of the command "crm status" as below:<br>
> [root@ ~]# crm status<br>
> -bash: crm: command not found<br>
><br>
> And output of the command "lsof | grep <mount_point>".<br>
><br>
> [root@ ~]# cat /proc/mounts | grep -i drbd<br>
> [root@ ~]#<br>
<br>
<br>
<u></u><u></u></span></p>
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