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I have a durable queue which holds persistent messages. The messages arrive into the queue at a rate of about 10 messages per second.</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
The client is unable to fetch those messages at that rate. As a result the queue on the server keeps growing.</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
Each message is less than 1 KB and I have a healthy 2 Mbps line between the server and my machine. Using a network monitoring utility, I found that it is hardly using any of that bandwidth.</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
The client is doing nothing with the messages as of now, just printing them to console so processing time on client is almost 0.</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
Some other details: I am using a java client. I have set the client to prefetch 10000 messages. (also tried with default values) The round trip time is about 290 - 350 ms. Messages are individually acknowledged.</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
The available resources are being underutilized and 10 messages per second is hardly any load in my opinion. How do I speed up things so that messages held up in queue are transferred faster to the client. Possibly using some sort of batching.</p>
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Thanks,</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;background-color:rgb(255,255,255);clear:both;word-wrap:break-word;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
Priyank</p>