Re: Help: Squid performance bombs when many sites are unreachable

From: Thilo Manske <Thilo.Manske@dont-contact.us>
Date: Tue, 27 Apr 1999 14:46:17 +0200

On Tue, Apr 27, 1999 at 12:29:35PM +0100, Simon Rainey wrote:
> Apr 27 11:07:17 adder squid[142]: WARNING: All redirector processes are busy.
> Apr 27 11:07:17 adder squid[142]: WARNING: 8 pending requests queued
> Apr 27 11:07:17 adder squid[142]: WARNING: All dnsserver processes are busy.
> Apr 27 11:07:17 adder squid[142]: WARNING: 5 pending requests queued
> Apr 27 11:17:17 adder squid[142]: WARNING: All redirector processes are busy.
> Apr 27 11:17:17 adder squid[142]: WARNING: 1762 pending requests queued
> Apr 27 11:17:20 adder squid[142]: Too many queued redirector requests
> Apr 27 11:17:20 adder squid[142]: Too many queued redirector requests
> Apr 27 11:17:23 adder squid[285]: Starting Squid Cache version 2.1.RELEASE
> for i686-pc-linux-gnu...
> Apr 27 11:17:28 adder squid[285]: WARNING: All redirector processes are busy.
> Apr 27 11:17:28 adder squid[285]: WARNING: 8 pending requests queued
> Apr 27 11:17:39 adder squid[285]: WARNING: All dnsserver processes are busy.
> Apr 27 11:17:39 adder squid[285]: WARNING: 5 pending requests queued
Well, I'd increase the # of dnssservers and redirectors, so when some
are busy to deal with those unreachable sites there are still servers
available for other requests.

I don't know much about redirectors (I don't use any) but if possible you
should decrease timeout parameters so that they don't block for so long.

BTW: Do you cache errors? This may help...

-- 
Dies ist Thilos Unix Signature! Viel Spass damit.
Received on Tue Apr 27 1999 - 07:00:33 MDT

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