<div dir="ltr">How?  We're pulling our hair trying to get this resolve.  I don't see how our app can execute the basicAck more than once considering I only submitted one message to the queue and the consumer is only consuming that one message.<div>
<br></div><div>We are only seeing this when we have created the second consumer subscription.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Feb 25, 2014 at 3:09 PM, Michael Klishin <span dir="ltr"><<a href="mailto:michael.s.klishin@gmail.com" target="_blank">michael.s.klishin@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">2014-02-25 23:44 GMT+04:00 cw storm <span dir="ltr"><<a href="mailto:cwstorm@gmail.com" target="_blank">cwstorm@gmail.com</a>></span>:<div class="">
<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">

So, it's hard to understand how it's "double ack/reject" on the same delivery.</blockquote></div></div><br>Your app can call Channel#basicAck more than once with the same delivery tag.<br><br clear="all">
<div>

Use protocol tracer to see if that's the case:</div><div><a href="http://www.rabbitmq.com/java-tools.html" target="_blank">http://www.rabbitmq.com/java-tools.html</a><span class="HOEnZb"><font color="#888888"><br></font></span></div>
<span class="HOEnZb"><font color="#888888">-- <br>MK<br><br><a href="http://github.com/michaelklishin" target="_blank">http://github.com/michaelklishin</a><br>

<a href="http://twitter.com/michaelklishin" target="_blank">http://twitter.com/michaelklishin</a><br>
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