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<tt>Hi all,<br>
<br>
The name of the feature changed to 'Barrier' in order to avoid the
confusion between the 'Quiesce' translator.<br>
<br>
A much detailed version of the document is updated here
<a class="moz-txt-link-freetext" href="http://www.gluster.org/community/documentation/index.php/Features/Server-side_Barrier_feature">http://www.gluster.org/community/documentation/index.php/Features/Server-side_Barrier_feature</a>.
All comments/suggestions/critics on both document and the feature
is welcome.<br>
<br>
Thanks<br>
Varun Shastry<br>
<br>
</tt>
<div class="moz-cite-prefix">On Friday 31 January 2014 04:57 PM,
Varun Shastry wrote:<br>
</div>
<blockquote cite="mid:52EB8894.8040606@redhat.com" type="cite">
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Hi all,<br>
<br>
Volume snapshot feature snapshots a volume by snapshotting
individual bricks, that are available, using the lvm-snapshot
technology. As part of using lvm-snapshot, the design requires
bricks to be free from modifications. Snapshot feature needs a
mechanism in GlusterFS, where file operations such as write,
mkdir, mkdnod, unlink, truncate etc, that modify the underlying
file system, are ‘quiesced’ until the snapshot of the brick is
taken.<br>
<br>
This mechanism should have the following properties:<br>
• Allow file operations that do not modify the underlying file
system.<br>
• Should keep the ‘quiescing’ transparent to the applications.<br>
<br>
This is where the server-side quiescing of file operations comes
into picture. So the feature page[1] for Server side Quiesce is
created in the gluster.org. Please review the document &
design of the feature and provide your
comments/suggestions/critics.<br>
<br>
[1] <a moz-do-not-send="true"
href="http://www.gluster.org/community/documentation/index.php/Features/Server-side_Quiesce_feature">http://www.gluster.org/community/documentation/index.php/Features/Server-side_Quiesce_feature</a><br>
<br>
Thanks<br>
Varun Shastry<br>
<br>
<br>
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