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I have below log from HA Proxy<br />
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<pre><code id="code-10-29069238-1">Nov 17 09:15:41 lb1_server haproxy[14520]: 10.22.148.53:2102 [17/Nov/2017:09:15:40.191] lb in/batch31 0/0/0/1472/1473 503 5569 - - ---- 2106/2106/2098/79/0 0/0 &quot;GET /my_url HTTP/1.1&quot;</code></pre>
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Here I would like to understand what is <br />
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<pre><code id="code-10-29069238-2"> 0/0/0/1472/1473 </code></pre>
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and also using above log can I see how many requested were 'queued' as backend was not available ?
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I have below log from HA Proxy

(CODE)

Here I would like to understand what is 

(CODE)

and also using above log can I see how many requested were 'queued' as backend was not available ?

How to get the queue size in HA Proxy

The Apache HTTP Server is a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards. Typically Apache is run on a Unix-like operating system, but it is available for a wide variety of operating systems, including Linux, Novell NetWare, Mac OS-X and Windows. Released under the Apache License, Apache is open-source software.