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Re: too many of orphaned sockets [message #5776 is a reply to message #5753]

Wed, 30 August 2006 13:47

hvdkamer
Messages: 40
Registered: July 2006

Member

Well, despite which kernel, I think your explanation is stille the right one. Because now I know that it is a 1/4 of the barier, I did manage to sqeeuze the maximum out of a very minimal VE Smile

.

First parameter I forgot is tuning the TCP sockets of the proxy Lighttpd server. It uses two for every request. One from him to the visitor and one to the correct, internal miniserver. That one could go to 32 simultanous connections, so I scaled the first to 64 (it was 48).

My next assumption was that probably every concurrent connection in the Apache benchmark could give an orpahed connection. That explains probably why with -c 10 it goes most of the time alriight and with 12 the 1/4 of 48 is reached. And indeed I found out that every increase in the -c parameter must raise the barrier of the proxy VE. With that I could go as high as -c 28 (because that raised the maxheld to 31 Smile

) if I set it to 112:64. That one is illegal according to vzcfgvalidate, but you can still set it.

So the only question remaining is why 1/4? They above experiment suggests 1/2. Anyway, I now know what the warning is about and that it is nothing more than that. Thanks for the explanation. It would be great if more of this knowledge is summearized somewehre in the wiki. I saw something about memory, but not this kind of stuff. May be I must start the page myself Smile

Henk van de Kamer
auteur Het Lab
http://www.hetlab.tk/

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[Message index]

		SOLVED too many of orphaned sockets By: hvdkamer on Tue, 29 August 2006 17:46
		Re: too many of orphaned sockets By: Vasily Tarasov on Wed, 30 August 2006 05:50
		Re: too many of orphaned sockets By: hvdkamer on Wed, 30 August 2006 07:48
		Re: too many of orphaned sockets By: Vasily Tarasov on Wed, 30 August 2006 08:33
		Re: too many of orphaned sockets By: Vasily Tarasov on Wed, 30 August 2006 08:40
		Re: too many of orphaned sockets By: hvdkamer on Wed, 30 August 2006 13:47

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