<div dir="ltr">Additionally if you require some resources to test this against OpenLab is a great resource - <a href="https://openlabtesting.org">https://openlabtesting.org</a> provides more info - <a href="https://github.com/theopenlab/resource-requests/issues/new">https://github.com/theopenlab/resource-requests/issues/new</a> - is where you can skip having to go through the site to do so<br></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Sep 10, 2018 at 3:19 PM Jay S Bryant <<a href="mailto:jungleboyj@gmail.com">jungleboyj@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
On 9/9/2018 10:58 PM, Adam Spiers wrote:<br>
> Hi James,<br>
><br>
> James Penick <<a href="mailto:jpenick@gmail.com" target="_blank">jpenick@gmail.com</a>> wrote:<br>
>> Hey folks,<br>
>> Does anyone have experience using zookeeper or redis to handle HA <br>
>> failover<br>
>> in cinder clusters?<br>
><br>
> I'm guessing you mean failover of an active/passive cinder-volume<br>
> service?<br>
><br>
>> I know there's docs on pacemaker, however we already<br>
>> have the other two installed and don't want to add yet another <br>
>> component to<br>
>> package and maintain in our clusters.<br>
><br>
> I'm afraid I don't, but if you make any progress on this, please let<br>
> me know as it would be great to document:<br>
><br>
> - how this would work<br>
> - any pros and cons vs. Pacemaker<br>
><br>
> and maybe I can help with that.<br>
><br>
> One particular question: if the node running the service becomes<br>
> unreachable, is it safe to fail it over straight away, or is fencing<br>
> required first? (I'm pretty sure I've asked this same question<br>
> before, but I can't remember the answer - sorry!)<br>
James,<br>
<br>
I echo Adam's input. I have only heard of people implementing with <br>
pacemaker but there is no reason that this couldn't be tried with other <br>
HA solutions.<br>
<br>
If you are able to try it and document it would be great to add <br>
documentation here: [1]<br>
<br>
Also, Gorka Eguileor is a good contact as he has been doing much of the <br>
work on HA Cinder though his focus is on Active/Active HA.<br>
<br>
Let us know if you have any further questions.<br>
<br>
Thanks!<br>
Jay<br>
<br>
<br>
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</blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:small"><div dir="ltr"><div dir="ltr">Kind regards,<br><br>Melvin Hillsman</div><div dir="ltr"><a href="mailto:mrhillsman@gmail.com" style="color:rgb(17,85,204)" target="_blank">mrhillsman@gmail.com</a><br>mobile: (832) 264-2646<br></div></div></div></div></div></div></div></div></div>