<div dir="ltr"><br><div>This happens to us, too, using a shared MySQL backend for our lease/reservation DBs.</div><div><br></div><div>I put Monit up on our Kea backends to automatically restart when it detects that the process isn't running, and with a bit of tweaking, it's been pretty bulletproof, with a bonus of handling other, unrelated crashes (although I haven't really seen any of those).</div><div><br></div><div>cheers,</div><div>Klaus</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 18, 2018 at 8:34 AM, <span dir="ltr"><<a href="mailto:mike+kea@willitsonline.com" target="_blank">mike+kea@willitsonline.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 06/18/2018 05:03 AM, Satish Patel wrote:<br>
> Thanks you for comments, I told you half story, full story is we have two kea instance for HA and they are pointed to galera DB cluster for centralize Shared DB. <br>
><br>
> Both node active and inserting records in cluster DB and everything works but every few hour node-2 kea is dying with mentioned error, everything same node dying. Node-1 never had any issue. <br>
><br>
> Do you think this is clustering issue they both trying to do same thing and one of node dying? I have check network and every possible thing but nothing wrong there, also I have increase max_packet_size in db but no luck :(<br>
><br>
<br>
</span>I have galera cluster too and also observe routine cases of 'server has<br>
gone away' across sql apps, which is being dealt with by application<br>
layer checks to 'reconnect' to the db. Have not investigated the<br>
underlying cause other than tcpdump but I think this is squarely a<br>
galera / mysql issue.<br>
<br>
MIke-<br>
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