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<div class="moz-cite-prefix">On 06/30/2014 07:49 PM, COCHE Sébastien
wrote:<br>
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<p class="MsoNormal"><span lang="EN-US">Hello<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have a question
regarding concurrent write.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">How are manage those
writes ? Is there a risk of data corruption ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there a lock
mechanism, against corruption ? If yes, how it work ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I already had a look to
forum and documents but I did not found a deep dive
explanation.</span></p>
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For plain distribute volumes there exists only one file in the
volume with the data. All the operations on the file happen just
like they happen on normal filesystem. For replicated/distributed
replicated volumes there are internal locks taken by replication
feature to avoid any in-consistencies.<br>
Please check
<a class="moz-txt-link-freetext" href="https://github.com/gluster/glusterfs/blob/master/doc/features/afr-v1.md">https://github.com/gluster/glusterfs/blob/master/doc/features/afr-v1.md</a>
to know more about it.<br>
<br>
Pranith<br>
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<p class="MsoNormal"><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank for your feedback<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Sorry for my poor
english ;-)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Sebastien<o:p></o:p></p>
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