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On 07/07/2015 12:14 PM, Ulrich Windl wrote:<br>
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<pre wrap="">Muhammad Sharfuddin <a class="moz-txt-link-rfc2396E" href="mailto:M.Sharfuddin@nds.com.pk"><M.Sharfuddin@nds.com.pk></a> schrieb am 06.07.2015 um 12:14 in
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<pre wrap="">Nachricht <a class="moz-txt-link-rfc2396E" href="mailto:559A550A.8010906@nds.com.pk"><559A550A.8010906@nds.com.pk></a>:
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<pre wrap="">Ok, so reducing the sbd timeout(or msgwait) would provide the
uninterrupted access to the ocfs2 file system on the surviving/online node ?
or would it just minimize the downtime ?
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It will reduce the time between "writing the reset message for a node" and "the cluster believes the node is down". So you can guess what happens if you set it to some very short time like 1 second...
Regards,
Ulrich
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<font size="1">now msgwait timeout is set to 10s and a
delay/inaccessibility of 15 seconds was observed. If a
service(App, DB, file server) is installed and running from the
ocfs2 file system via the surviving/online node, then <br>
wouldn't that service get crashed or become offline due to the
inaccessibility of the file system(event though its ocfs2) while a
member node goes down ?<br>
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<br>
If cluster is configured to run the two independent services, and
starts one on node1 and ther on node2, while both the service
shared the same file system, /sharedata(ocfs2), then in case of a
failure of one node, the other/online wont be able to <br>
keep running the particular service because the file system
holding the binaries/configuration/service is not available for
around at least 15 seconds.<br>
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I don't understand the advantage of Ocfs2 file system in such a
setup. <br>
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-- <br>
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<font size="2">Regards,<br>
<br>
Muhammad Sharfuddin</font><font size="1"><br>
<a href="http://www.nds.com.pk"></a></font>
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