<div dir="ltr"><div>If ps aux|grep o2hb does not return anything, means you are using local heartbeat.</div><div><br></div><div>That means you have mismatching ocfs2.conf file. And I suspect the node where this is failing is the one that has the bad ocfs2.conf file. Compare the config files from all the nodes and ensure it is the same. Or you could simply replace the one on the failing node from another node. The file should be the same everywhere. Remember to restart the cluster on that node.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Feb 9, 2015 at 2:27 PM, Danijel Krmar <span dir="ltr"><<a href="mailto:danijel.krmar@activecollab.com" target="_blank">danijel.krmar@activecollab.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><span class=""><div style="font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto"><div style="line-height:19.5px;margin:0px">No, nothing there:</div><div style="line-height:19.5px;margin:0px"><div style="margin:0px">$ ps aux | grep o2hb</div><div style="margin:0px">root 5724 0.0 0.0 8320 888 pts/0 S+ <a href="http://airmail.calendar/2015-02-09%2022:30:00%20GMT+1" target="_blank">22:30</a> <a href="http://airmail.calendar/2015-02-09%2000:00:00%20GMT+1" target="_blank">0:00</a> grep --color o2hb</div></div><div style="line-height:19.5px"><div style="font-family:helvetica,arial"><br></div><div>Still the same error if i try to mount the iSCSI disk:</div><div>o2hb_check_own_slot:590 ERROR: Heartbeat generation mismatch on device (sdb): expected(2:0x2f32486d4c54730a, 0x54d926d7), ondisk(2:0xb016e6a72676a791, 0x54d926d7)</div><div><br></div><div>As said, there are no such problems on other machines, just this one. I can’t get my head around this "Heartbeat generation mismatch” error message. </div></div></div> <br> </span><span class=""><div><div style="font-family:helvetica,arial;font-size:13px">-- <br>Danijel Krmar</div><div style="font-family:helvetica,arial;font-size:13px"><div style="font-family:Helvetica,Arial;line-height:normal"><font face="helvetica, arial">A51 D.O.O.</font></div><div style="font-family:Helvetica,Arial;line-height:normal"><font face="helvetica, arial">Novi Sad</font></div><div style="font-family:Helvetica,Arial;line-height:normal"><font face="helvetica, arial"><a href="https://www.activecollab.com/" target="_blank">https://www.activecollab.com/</a></font></div></div></div> <br></span><span class=""><p style="color:#000">On February 9, 2015 at 8:09:06 PM, Sunil Mushran (<a href="mailto:sunil.mushran@gmail.com" target="_blank">sunil.mushran@gmail.com</a>) wrote:</p> </span><div><div class="h5"><blockquote type="cite"><span><div><div></div><div>
<div dir="ltr">On node 2, do:
<div>ps aux | grep o2hb</div>
<div><br></div>
<div>I suspect you have multiple o2hb threads running. If so,
restart the o2cb cluster on that node.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Feb 9, 2015 at 10:08 AM, Danijel
Krmar <span dir="ltr"><<a href="mailto:danijel.krmar@activecollab.com" target="_blank">danijel.krmar@activecollab.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">
<div style="font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto">
<div style="margin:0px 5px 5px 0px;padding:0px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;word-wrap:break-word;width:660px;line-height:17.8048000335693px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;background-repeat:initial initial">
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;clear:both;background:transparent">
As said in the title, when I want to mount a iSCSI target on one
machine I get the following error:</p>
<pre style="margin-top:0px;margin-bottom:10px;padding:5px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;overflow:auto;width:auto;max-height:600px;word-wrap:normal;background-color:rgb(238,238,238);background-repeat:initial initial"><code style="margin:0px;padding:0px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;white-space:inherit;background-repeat:initial initial">(o2hb-3F92114867,7826,3):o2hb_check_own_slot:590 ERROR: Heartbeat generation mismatch on device (sdb): expected(2:0xa0cf28215b4b1ed3, 0x54d8a036), ondisk(2:0xb016e6a72676a791, 0x54d8a037)
</code>
</pre>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;clear:both;background:transparent">
The same iSCSI target is working on other machines.</p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:13.6960000991821px;vertical-align:baseline;clear:both;background:transparent">
Any idea what this error means? </p>
</div>
</div>
<span><font color="#888888"><br></font></span>
<div>
<div style="font-family:helvetica,arial;font-size:13px">
<span><font color="#888888">-- <br>
Danijel Krmar</font></span></div>
<div style="font-family:helvetica,arial;font-size:13px">
<div style="font-family:Helvetica,Arial;line-height:normal">
<span><font color="#888888"><font face="helvetica, arial">A51 D.O.O.</font></font></span></div>
<div style="font-family:Helvetica,Arial;line-height:normal">
<span><font color="#888888"><font face="helvetica, arial">Novi Sad</font></font></span></div>
<div style="font-family:Helvetica,Arial;line-height:normal">
<span><font color="#888888"><a href="https://www.activecollab.com/" target="_blank"><font face="helvetica, arial">https://www.activecollab.com/</font></a></font></span></div>
</div>
</div>
</div>
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</div></div></span></blockquote></div></div></div></blockquote></div><br></div>