Re: fastcgi+php=lots of 500 errors ?

On Monday, February 28, 2005 9:17 PM CET,
Simon <[email protected]> wrote:

> Is that the only error you see in your error log? when you see 200req
> a sec is that all PHP? is it 200req/sec per server or on all 3?
>

excepted the normal info messages from fastcgi such as:
[Mon Feb 28 21:20:09 2005] [warn] FastCGI: (dynamic) server 
"/usr/local/bin/php-fcgi/php.fcgi" (pid 31004) terminated by calling exit 
with status '0'

or

[Mon Feb 28 21:20:09 2005] [warn] FastCGI: (dynamic) server 
"/usr/local/bin/php-fcgi/php.fcgi" (pid 31417) termination signaled


or even

[Mon Feb 28 21:20:09 2005] [warn] FastCGI: (dynamic) server 
"/usr/local/bin/php-fcgi/php.fcgi" (uid 522, gid 100) started (pid 31533)

which are normal info message about fastcgi activity, yes , this is the only 
real errors.

The servers are 3 pentium 4 3.2Ghz and it is 200req/s on all 3. If they 
weren't 500's , the configuration was clean : lesser than load average of 1, 
and a maximum of 400req/s capacity on all 3 servers (benchmark results, and 
a load not higher than 5).

No other debugging information... I think i'll become crazy soon...

BTW: i tested with the "stable" fastcgi version (2.4.2), and it produces the 
same result.

-- 
Gabriel Barazer <gabriel-G2fI/[email protected]>
REAGI

>
> On Mon, 28 Feb 2005 19:26:06 +0100, Gabriel Barazer wrote:
>
>> Hi,
>>
>> When using php with mod_fastcgi , i get a HUGE number of 500 errors
>> and this line in the error log:
>> FastCGI: incomplete headers (0 bytes) received from server
>> "/usr/local/bin/php-fcgi/php.fcgi"
>>
>> I have a moderated traffic (~200req per second on 3 servers), and
>> these 500's occurs 2-3 times per second on each server.
>>
>> My actual config is the same on both servers:
>> ---
>> FastCgiWrapper On
>> FastCgiConfig -gainValue 0.8 -killInterval 5 -listen-queue-depth
>> 512 -maxClassProcesses 96 -maxProcesses 192 -multiThreshold
>> 60 -singleThreshold 1 -startDelay 1 -updateInterval 5
>> ScriptAlias /fcgi-bin/ "/usr/local/bin/php-fcgi/"
>> <Location /fcgi-bin/>
>>        Options ExecCGI
>>        SetHandler fastcgi-script
>> </Location>
>>
>> AddHandler php-script .php .inc .pinc .phtml .php3 .php4
>> Action php-script /fcgi-bin/php.fcgi
>> ---
>>
>> It appears that if i raise the killinterval AND updateinterval, the
>> number of errors decrease after a restart of apache, but as the
>> uptime grows, the number of errors grows too...
>>
>> i haven't succeed to reproduce this bug as it seems to be very
>> random (but it happens very more often when the traffic increases)
>>
>> Anyone have an idea about this *very* annoying effect ?
>>
>> Oh, i forgot to mention the software versions:
>> apache 2.0.53
>> php 4.3.10
>> mod_fastcgi-snap-0404142202
>>
>> --
>> Gabriel Barazer <gabriel-G2fI/[email protected]>
>> REAGI 

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