<div dir="ltr"><div><span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">This recently added document talks about some of the technicalities of the feature:</span><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><a href="https://docs.gluster.org/en/latest/Administrator%20Guide/Thin-Arbiter-Volumes/">https://docs.gluster.org/en/latest/Administrator%20Guide/Thin-Arbiter-Volumes/</a></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">Please go through and see if it answers your questions.</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">-Amar</div><br><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 1, 2018 at 11:09 PM, wkmail <span dir="ltr"><<a href="mailto:wkmail@bneit.com" target="_blank">wkmail@bneit.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I see mentions of thin arbiter in the 4.x notes and I am intrigued.<br>
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As I understand it, the thin arbiter volume is<br>
<br>
a) receives its data on an async basis (thus it can be on a slower link). Thus gluster isn't waiting around to verify if it actually got the data.<br>
<br>
b) is only consulted in situations where Gluster needs that third vote, otherwise it is not consulted.<br>
<br>
c) Performance should therefore be better because Gluster is only seriously talking to 2 nodes instead of 3 nodes (as in normal arbiter or rep 3)<br>
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Am I correct?<br>
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If so, is thin arbiter ready for production or at least use on non-critical workloads?<br>
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How safe is it for VMs images (and/or VMs with sharding)?<br>
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How much faster is thin arbiter setup over a normal arbiter given that the normal data only really sees the metadata?<br>
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In a degraded situation (i.e. loss of one real node), would having a thin arbiter on a slow link be problematic until everything is healed and returned to normal?<br>
<br>
Sincerely,<br>
<br>
-wk<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Amar Tumballi (amarts)<br></div></div></div></div></div>
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