What follows is probably answered somewhere, so forgive me for asking if it is...<div><br></div><div>RabbitMQ 1.7.2</div><div>Windows 7 X64</div><div><br></div><div>Observing a test using the MulticastMain client, one producer and one receiver, with the following parameters:</div>
<div><ul><li>MulticastMain -y 0 -s 128 -e e -t fanout -r 1100 -f persistent</li><li>MulticastMain -x 0 -e e -t fanout -y 1 -n 500 -q 1000</li></ul></div><div>I see that the size of the log varies tremendously, as does the frequency with which it is 'rolled'.�</div>
<div>The size is presumably determined by the number of messages pending, i.e., not yet acknowledged?</div><div><br></div><div><span class="Apple-style-span" style="font-family: helvetica, arial; font-size: 12px; "><table style="border-collapse: collapse; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: solid; border-top-color: black; border-right-color: black; border-bottom-color: black; border-left-color: black; ">
<thead><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th class="pxname" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; width: 125px; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(160, 0, 32); color: rgb(255, 255, 64); background-position: initial initial; background-repeat: initial initial; ">
<span class="Apple-style-span" style="font-size: x-small;">Queues</span></th></tr></thead></table><table style="border-collapse: collapse; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: solid; border-top-color: black; border-right-color: black; border-bottom-color: black; border-left-color: black; ">
<thead><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th colspan="4" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Overview</span></th><th colspan="3" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Messages</span></th><th colspan="2" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Transactions</span></th><th colspan="3" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Parameters</span></th></tr><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Vhost</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Name</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Consumers</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Memory</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Count</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Msg ready</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Msg unack</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Count</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Acks uncommited</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Durable</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Auto delete</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Arguments</span></th></tr></thead><tbody><tr><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">/</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">amq.gen-EIK8rQQfEX9IBiqLwF6h7Q==</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">1</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">0MB</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">227</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">0</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">227</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">1</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">227</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">false</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">true</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">[]</span></td></tr></tbody></table>The log file at the above moment in time is 128KB. (I paused the producer long enough for the receiver to catch up.)</span></div>
<div></div><div><span class="Apple-style-span" style="font-size: x-small;"><br><span class="Apple-style-span" style="font-family: helvetica, arial; font-size: 12px; "><table style="border-collapse: collapse; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: solid; border-top-color: black; border-right-color: black; border-bottom-color: black; border-left-color: black; ">
<thead><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th class="pxname" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; width: 125px; background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(160, 0, 32); color: rgb(255, 255, 64); background-position: initial initial; background-repeat: initial initial; ">
<span class="Apple-style-span" style="font-size: x-small;">Queues</span></th></tr></thead></table><table style="border-collapse: collapse; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: none; border-right-style: none; border-bottom-style: none; border-left-style: solid; border-top-color: black; border-right-color: black; border-bottom-color: black; border-left-color: black; ">
<thead><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th colspan="4" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Overview</span></th><th colspan="3" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Messages</span></th><th colspan="2" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Transactions</span></th><th colspan="3" style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Parameters</span></th></tr><tr class="titre" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(30, 176, 176); color: rgb(0, 0, 0); font-weight: bold; background-position: initial initial; background-repeat: initial initial; ">
<th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Vhost</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Name</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Consumers</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Memory</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Count</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Msg ready</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Msg unack</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Count</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Acks uncommited</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Durable</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Auto delete</span></th><th style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: center; ">
<span class="Apple-style-span" style="font-size: x-small;">Arguments</span></th></tr></thead><tbody><tr><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">/</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">amq.gen-EIK8rQQfEX9IBiqLwF6h7Q==</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">1</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">105MB</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">249343</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">248343</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">1000</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">1</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">58</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">false</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">true</span></td><td style="border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: gray; border-right-color: gray; border-bottom-color: gray; border-left-color: gray; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px; text-align: right; ">
<span class="Apple-style-span" style="font-size: x-small;">[]</span></td></tr></tbody></table></span></span></div><div><div style="text-align: left;"><span class="Apple-style-span" style="font-size: x-small; "><br></span></div>
<div style="text-align: left;">The log file at the above moment is some 111,529KB, the rolled over log file about the same size.</div><div style="text-align: left;"><br></div><div style="text-align: left;">What I am wondering about is</div>
<div style="text-align: left;"><ol><li>when does the roll-over take place?�</li><li>what role does the�dump_log_write_threshold parameter play here? (It is set to 1,000 in these tests)</li><li>why is the previous version deleted before the current one is rolled over? (GFS would appear to be the algorithm which should be used in order not to lose anything)</li>
<li>the new version of the log file is created with a very small initial allocation? Is there a way to influence this size? �(yes, I know, modern file systems should be able to happily expand very fast, and I have asked this question before. However, the time taken to 'rename' the current to previous and create a new log causes quite significant waves on the client side. These are noticeable even to the human eye.)</li>
<li>The severe delay is only experienced by the receiver. Here are a few samples:</li></ol><ol></ol><ul><ul><li>recving rate: 507 msg/s</li><li>recving rate: 506 msg/s</li><li>recving rate: 475 msg/s</li><li>recving rate: 377 msg/s</li>
<li><b><span class="Apple-style-span" style="background-color: rgb(255, 255, 102);">recving rate: 5 msg/s</span></b></li><li>recving rate: 591 msg/s</li><li>recving rate: 490 msg/s</li></ul></ul><ol></ol><ol></ol><ol></ol>
<ol></ol><ol></ol><ol></ol></div></div><div>---</div><div>John Apps<br>(49) 171 869 1813<br>
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