[phpa] Re: Apache Error log messages

Time for a downgrade then perhaps :-)

The good news is that PHPA may cope with this problem ok. Generally it'll
detect the crashed processes, and particularly if PHP crashes during
execution (as it's doing here) rather than when PHPA is doing things itself,
it should tidy up resources that the dead process was using - i.e. the
scripts it was executing - and all should be well.

But clearly you should get to the bottom of the segfaults.

Good luck!

nick

> 
> Here are the results after 24 hours with PHPA turned off in the php.ini
> file and apache restarted.
> 
> [Thu Apr  4 10:25:21 2002] [notice] child pid 23167 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:25:48 2002] [notice] child pid 23278 exit signal
> Segmentation fault (11)
> PHP Warning:  Supplied argument is not a valid MySQL result resource in
> /usr/local/apache/sites/disboards.com/htdocs/admin/db_mysql.php on line
> 154 [Thu Apr  4 10:45:01 2002] [notice] child pid 24432 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:45:38 2002] [notice] child pid 24295 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:46:06 2002] [notice] child pid 24457 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:46:21 2002] [notice] child pid 24461 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:46:51 2002] [notice] child pid 2025 exit signal
> Segmentation fault (11)
> [Thu Apr  4 10:49:03 2002] [notice] child pid 24568 exit signal
> Segmentation fault (11)
> [Thu Apr  4 11:55:10 2002] [notice] child pid 27657 exit signal
> Segmentation fault (11)
> [Thu Apr  4 11:55:50 2002] [notice] child pid 18755 exit signal
> Segmentation fault (11)
> [Thu Apr  4 11:56:09 2002] [notice] child pid 27083 exit signal
> Segmentation fault (11)
> [Thu Apr  4 11:58:21 2002] [notice] child pid 25305 exit signal
> Segmentation fault (11)
> [Thu Apr  4 12:16:32 2002] [notice] child pid 28118 exit signal
> Segmentation fault (11)
> [Thu Apr  4 12:16:41 2002] [notice] child pid 28064 exit signal
> Segmentation fault (11)
> [Thu Apr  4 12:17:39 2002] [notice] child pid 28068 exit signal
> Segmentation fault (11)
> [Thu Apr  4 12:19:17 2002] [notice] child pid 28290 exit signal
> Segmentation fault (11)
> [Thu Apr  4 13:12:29 2002] [notice] child pid 30956 exit signal
> Segmentation fault (11)
> [Thu Apr  4 13:12:40 2002] [notice] child pid 30955 exit signal
> Segmentation fault (11)
> PHP Warning:  Supplied argument is not a valid MySQL result resource in
> /usr/local/apache/sites/disboards.com/htdocs/admin/db_mysql.php on line
> 154 [Thu Apr  4 17:14:08 2002] [error] [client 217.0.36.131] File does
> not exist:
> /usr/local/apache/htdocs/scripts/..%5c..%5cwinnt/system32/cmd.exe [Thu
> Apr  4 17:59:14 2002] [notice] child pid 31996 exit signal Segmentation
> fault (11)
> [Thu Apr  4 17:59:14 2002] [notice] child pid 31973 exit signal
> Segmentation fault (11)
> [Thu Apr  4 17:59:15 2002] [notice] child pid 31915 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:23:32 2002] [notice] child pid 307 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:24:23 2002] [notice] child pid 31464 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:26:12 2002] [notice] child pid 31537 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:26:15 2002] [notice] child pid 897 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:26:15 2002] [notice] child pid 31546 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:49:21 2002] [notice] child pid 1695 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:49:45 2002] [notice] child pid 1655 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:49:50 2002] [notice] child pid 1645 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:50:05 2002] [notice] child pid 1611 exit signal
> Segmentation fault (11)
> [Thu Apr  4 18:51:10 2002] [notice] child pid 1204 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:02:47 2002] [notice] child pid 2165 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:03:46 2002] [notice] child pid 2220 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:03:47 2002] [notice] child pid 1919 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:04:24 2002] [notice] child pid 2219 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:05:15 2002] [notice] child pid 2193 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:05:15 2002] [notice] child pid 32285 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:05:28 2002] [notice] child pid 1317 exit signal
> Segmentation fault (11)
> [Thu Apr  4 19:06:18 2002] [notice] child pid 2285 exit signal
> Segmentation fault (11)
> 
> -----Original Message-----
> From: phpa-bounce@xxxxxxxxxxxxx [mailto:phpa-bounce@xxxxxxxxxxxxx]On
> Behalf Of Nick Lindridge
> Sent: Wednesday, April 03, 2002 8:11 PM
> To: phpa@xxxxxxxxxxxxx
> Subject: [phpa] Re: Apache Error log messages
> 
> 
>>
>> Hi,
>>
>> You mentioned that PHP 4.1.2 is unstable used with PHPA.
>> What version of PHP would you recommend then?
> 
> No, PHP 4.1.2 is unstable period - i.e. it's unstable without PHPA as
> well :-) Just as 4.0.6 is/was. Ho hum.
> 
> But, PHP 4.1.2 must be *mostly* ok because many people are surely using
> it without problems - although there are also people who *will* be
> having problems, i.e. segfaults, and just never realise it because they
> don't check their logs thoroughly, if at all. I've sometimes seen that
> when looking at logs that people have sent when investigating possible
> problems with phpa (but they've also been really helpful in pointing
> out confirmed issues with phpa in the past too, so I never mind going
> through logs!).
> 
> 4.0.6 was probably OK for many people too, but it broke for me because
> I used certain array functions, and even then, would only break on the
> 'n'th apache request. e.g. it might take 35 requests after restarting
> apache, but would always be 35 requests, unless I modified my php code
> a bit and then it might always take 20 requests, or 100 requests. The
> bugs just took their time to crash apache.
> 
> I'd say use whatever version of PHP that you have to and see what
> happens. If you get segfaults then it would be worth trying without
> phpa for a day or so to see whether you also see any segfaults. If you
> do then beat up the php folks, although you have to wonder about any
> other plugings that you have too. If you don't then it doesn't mean
> that there's not a bug in PHP, but you can then come and point the
> finger at phpa as well :-)
> 
> Personally I liked 4.0.7RC3 because it appeared to fix the bugs that
> crashed 4.0.6, and I never had segfaults with it. I'm still using that
> on the phpa site.
> 
> If you find a 'golden release' of anything, there's a lot to be said
> for sticking with it until you really need to change. I stuck with the
> 3.22.32 (I think that was it anyway) release of mysql because I never
> had problems with it. Sure it got join ordering wrong so queries were
> often slower than they should be unless I forced the ordering, but then
> so does the much newer 3.23.42, even when you've run an analyze on the
> table and done everything that you're supposed to do. The most recent
> versions may still be lame in that respect, and the newest versions of
> mysql always seem to have problems with this or that not working
> reliably. Of course there's always new stuff that's cool too, but it
> seems that you're really taking a leap of faith in using it.
> 
> nick
> 
> 
> 
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