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Re: Log Files running out disk space

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On Tue, Aug 17, 2010 at 17:03, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote:
>
> Nyamul Hassan wrote:
>>
>> Hi,
>>
>> One of proxies died down today, because the log files were overwhelming:
>>
>> -rw-r----- 1 squid squid       61440 Aug 17 16:01 access.log
>> -rw-r----- 1 squid squid   523366451 Aug 17 02:59 access.log.0
>> -rw-r----- 1 squid squid   771658231 Aug 17 00:00 access.log.1
>> -rw-r----- 1 squid squid   562853886 Aug 16 21:00 access.log.2
>> -rw-r----- 1 squid squid   618221433 Aug 16 18:00 access.log.3
>> -rw-r----- 1 squid squid   572403480 Aug 16 15:00 access.log.4
>> -rw-r----- 1 squid squid   379977665 Aug 16 12:00 access.log.5
>> -rw-r----- 1 squid squid   348474013 Aug 16 09:00 access.log.6
>> -rw-r----- 1 squid squid   367307983 Aug 16 06:00 access.log.7
>> -rw-r----- 1 squid squid   663904388 Aug 16 03:00 access.log.8
>> -rw-r----- 1 squid squid   735110835 Aug 16 00:00 access.log.9
>> -rw-r----- 1 squid squid 36715761664 Aug 17 16:01 cache.log
>> -rw-r----- 1 squid squid 14262776941 Aug 17 03:00 cache.log.0
>> -rw-r----- 1 squid squid      955445 Aug 17 00:00 cache.log.1
>> -rw-r----- 1 squid squid      748262 Aug 16 21:00 cache.log.2
>> -rw-r----- 1 squid squid     1069482 Aug 16 18:00 cache.log.3
>> -rw-r----- 1 squid squid      698758 Aug 16 15:00 cache.log.4
>> -rw-r----- 1 squid squid      497547 Aug 16 11:59 cache.log.5
>> -rw-r----- 1 squid squid      271153 Aug 16 08:59 cache.log.6
>> -rw-r----- 1 squid squid      355351 Aug 16 05:59 cache.log.7
>> -rw-r----- 1 squid squid      759748 Aug 16 02:59 cache.log.8
>> -rw-r----- 1 squid squid     1037802 Aug 15 23:59 cache.log.9
>>
>> As you can see, those "HUGE" cache log files were filled up in less
>> than 12 hours.  Opening them up, I find they were filled with the
>> following lines, repeated over and over again:
>>
>> 2010/08/17 02:33:11| comm_accept: FD 28: (22) Invalid argument
>> 2010/08/17 02:33:11| httpAccept: FD 28: accept failure: (22) Invalid argument
>> 2010/08/17 02:33:11| comm_accept: FD 28: (22) Invalid argument
>> 2010/08/17 02:33:11| httpAccept: FD 28: accept failure: (22) Invalid argument
>> 2010/08/17 02:33:11| comm_accept: FD 28: (22) Invalid argument
>> 2010/08/17 02:33:11| httpAccept: FD 28: accept failure: (22) Invalid argument
>>
>> And, that is the time from when it started.  Is there any way to
>> determine what is causing this?
>
> Start with the Squid version and what settings your http_port are configured with.
>
> Then we check for what it means. Google locates several requests, strangely around August each year for the last few.
>
> Someone describes it thus: "The problem is however elsewhere, since it somewhere fails to obtain a socket (or has its socket destroyed by the kernel somehow) so that when it calls accept(2) on the socket it's not a socket any more."
>
> Might be a SYN-flood DoS by that description. But your OS security should be catching such a thing before it gets near any internal software like Squid.
>
> Amos
> --
> Please be using
>  Current Stable Squid 2.7.STABLE9 or 3.1.6
>  Beta testers wanted for 3.2.0.1

Squid 2.7STABLE9
http_port 3128 transparent

iptables is running, but no rules are there.

Regards
HASSAN



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