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<div class="moz-cite-prefix">On 12/30/2015 04:20 AM, Kyle Harris
wrote:<br>
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<div style="font-size:13px">Hello All,</div>
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<div style="font-size:13px">Forgive the duplicate but I forgot
to give the first post a title so this corrects that. Anyway,
I recently discovered the new arbiter functionality of the 3.7
branch so I decided to give it a try. First off, I too am
looking forward to the ability to add an arbiter to an already
existing volume as discussed in the following thread: <a
moz-do-not-send="true"
href="https://www.gluster.org/pipermail/gluster-users/2015-August/023030.html"
target="_blank"><a class="moz-txt-link-freetext" href="https://www.gluster.org/pipermail/gluster-users/2015-August/023030.html">https://www.gluster.org/pipermail/gluster-users/2015-August/023030.html</a></a>.</div>
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This is not implemented yet Kyle. We are targetting it for 3.8.<br>
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<div style="font-size:13px">However, my first question for now
is can someone perhaps go into a bit of detail regarding the
difference between using this new arbiter functionality versus
adding a dummy node with regards to helping to eliminate
split-brain? In other words, a bit of information on which is
best and why? </div>
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<br>
See this thread
<a class="moz-txt-link-freetext" href="https://www.gluster.org/pipermail/gluster-users/2015-October/023915.html">https://www.gluster.org/pipermail/gluster-users/2015-October/023915.html</a>
for more information. Client quorum is a better way to avoid
split-brain of files.<br>
Arbiter is a type of replicate volume which uses client quorum (
plus some arbitration logic) to avoid split-brains.<br>
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<div style="font-size:13px"> </div>
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<div style="font-size:13px">Second, I noticed at the following
URL where is discusses this new functionality it says, and I
quote "<i>By default, client quorum (cluster.quorum-type) is
set to auto . . ."</i> which I found to be a bit confusing.
After setting up my new cluster I noticed that none of the
quorum settings including cluster.quorum-type seem to have a
setting?</div>
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The client-quorum is indeed enabled and set to auto; it is just that
the `volume info` output does not display it correctly. It being
fixed (<a class="moz-txt-link-freetext" href="http://review.gluster.org/#/c/11872/">http://review.gluster.org/#/c/11872/</a>).<br>
<br>
-Ravi<br>
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<div style="font-size:13px"><i><br>
</i></div>
<div style="font-size:13px">Arbiter Link</div>
<div style="font-size:13px"><a moz-do-not-send="true"
href="https://github.com/gluster/glusterfs/blob/release-3.7/doc/features/afr-arbiter-volumes.md"
target="_blank">https://github.com/gluster/glusterfs/blob/release-3.7/doc/features/afr-arbiter-volumes.md</a><br>
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<div style="font-size:13px">Thank you.</div>
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