<div dir="ltr">Thank you for the explanation. I got the point.<div>But just to be sure, and maybe someone will find this info helpful, wanna clarify this two options behavior.</div><div>From the <a href="http://manpages.ubuntu.com/manpages/saucy/man5/votequorum.5.html">http://manpages.ubuntu.com/manpages/saucy/man5/votequorum.5.html</a> about last_man_standing option:<br>
</div><div><br></div><div><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)"> NOTES: In order for the cluster to downgrade automatically from 2 nodes
to a 1 node cluster, the auto_tie_breaker feature must also be enabled<span style="font-family:inherit">.</span></pre><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)">
<span style="font-family:inherit"> If auto_tie_breaker is not enabled, and one more failure</span></pre><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)">
occurs, the remaining node will not be quorate.</pre><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)">
<br></pre><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)"><span style="font-family:inherit">But this is still a roulette - you can lose only the node which doesn't have the lowest nodeid?</span><br>
</pre><pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)"><span style="font-family:inherit">Am I right?</span></pre>
<pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-size:12px;line-height:16px;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51)"><span style="font-family:inherit"><br></span></pre></div>
</div><div class="gmail_extra"><br clear="all"><div><div dir="ltr">Thank you,<div>Kostya</div></div></div>
<br><br><div class="gmail_quote">On Thu, Jun 12, 2014 at 12:37 PM, Christine Caulfield <span dir="ltr"><<a href="mailto:ccaulfie@redhat.com" target="_blank">ccaulfie@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="">On 12/06/14 00:51, Andrew Beekhof wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Chrissy? Can you shed some light here?<br>
<br>
On 11 Jun 2014, at 11:26 pm, Kostiantyn Ponomarenko <<a href="mailto:konstantin.ponomarenko@gmail.com" target="_blank">konstantin.ponomarenko@gmail.<u></u>com</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi guys,<br>
<br>
I am trying to deal somehow with split brain situation in 2 node cluster using votequorum.<br>
Here is a quorum section in my corosync.conf:<br>
<br>
provider: corosync_votequorum<br>
expected_votes: 2<br>
wait_for_all: 1<br>
last_man_standing: 1<br>
auto_tie_breaker: 1<br>
<br>
My question is about behavior of the remaining node after I shout down node with the lowest nodeid.<br>
My expectation is that after a last_man_standing_window this node should be back working.<br>
<br>
Or in the case of two node cluster it is not a solution?<br>
</blockquote></blockquote>
<br>
<br></div>
If you want symmetric failure handing into a 2 node cluster then the two_node option might be more appropriate. auto_tie_breaker and last_man_standing are more useful for larger clusters where a network split leaves more than one node in a partition.<br>
<br>
Chrissie<div class="HOEnZb"><div class="h5"><br>
<br>
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