If it's a table listing check your MySQL settings. How have you set up my.cnf? What does your slow query log tell you? Have you logged into your MySQL server from another machine and ran queries from there? Have you enabled verbose logging for PHP and Apache? Are you tailing all 3 while you run the query from phpadmin? One of them will say something interesting.
I think your issue smells like something in how you compiled PHP or a setting in php.ini itself.
Put a test.php in the doc-root and see what it tells you it's using. (re; mysql & the php version & the location of the php.ini) I've done installs where I had conflicting libs from both PHP and MySQL. Also I get stupid locations for php.ini all the time and have to manaully move that file to the correct location.
[root@altair htdocs]# cat test.php <?php phpinfo(); ?> <? var_dump($GLOBALS['_PHPA']); ?>
I generally compile everything when I do a similar install - and give explicit declarations to where the apxs is for PHP as well as the root mysql libraries. Check that everything is where you think it is.
*from recent installation of vtiger: (for example)
APACHE 2 ==================== --prefix=/data/CRM/apache2 --with-mpm=prefork --enable-ssl --enable-setenvif --enable-proxy --enable-proxy-http --enable-so --disable-charset-lite --disable-include --disable-env --disable-status --disable-autoindex --disable-asis --disable-negotiation --disable-actions --disable-userdir --disable-alias make make install
PHP 5.2.5 ==================== --prefix=/data/CRM/php-5.2.5 --with-zlib-dir=/data/CRM/src/rrdbuild/lb --with-gd --with-png-dir=/data/CRM/src/rrdbuild/lb --with-freetype-dir=/data/CRM/src/rrdbuild/lb --with-jpeg-dir=/data/CRM/src/rrdbuild/lb --with-imap=/data/CRM/src/rrdbuild/lb --with-mysql=/usr/local/include/mysql --with-apxs2=/data/CRM/apache2/bin/apxs make make test make install
=====================================================================
XCACHE (this is the PHP accelerator we're using)
*you'll have to force it to see the non-standard install locations we're using. =============== Make a build directory: mkdir xcache-build cd src/xcache-build/ phpize --clean && phpize env CPPFLAGS="-I/data/CRM/php-5.2.5/include -I/data/CRM/apache2/include" LDFLAGS="-L/data/CRM/php-5.2.5/lib -I/data/CRM/apache2/lib" CFLAGS="-O3 -fPIC" ../xcache-1.2.2/configure --prefix=/data/CRM/ --enable-xcache make make install
*You must re-install each time you upgrade or re-compile PHP make distclean && phpize --clean && phpize (now continue w/ original instructions)
Locate a php.ini and copy it to /data/CRM/php-5.2.5/lib/php.ini Append the xcache options to this file: cd ../xcache-1.2.2 cat xcache.ini >> /etc/php.ini
Edit the php.ini to comply with the vtiger installation notes:
;Your php.ini must configured with the following parameters:
; * safe_mode = Off ; * display_errors = On *this is stupid. Turn it off after you tweak vtiger to how you like it. ; * file_uploads = On ; * register_globals = Off ; * max_execution_time = 600 ; * output_buffering= On ; * memory_limit = 32M *is 128 by default - ignore ; * error_reporting = E_WARNING & ~E_NOTICE ; * allow_call_time_reference = On ; * log_errors = Off *again, stupid - ignore ; * short_open_tag= On *again, why the code is a bit crap in vtiger that we'd need to enable this. ; * extension=php_gd2.dll *ignore - it's for windows ; * extension=php_imap.dll *ignore - it's for windows ; * extension=php_mysql.dll *ignore - it's for windows ; * extension=php_mysqli.dll *ignore - it's for windows
===========================================================
-Peter
2008/6/9 Pro Green European pro_green_european@yahoo.com:
Hi.
Have you tried other protocols? Is it really only http transfers that are slow?
Yes. Ftp works perfectly, and regular http with cgi/perl connections to the same database server works perfectly. Also rendering of standard HTML works as it should. It is only when a scripted site uses PHP/Mysql the connection to the server takes forever.
Have you tried pinging 100 times and see if you get dropped packets?
0% packet loss
Are there any errors from the netcards showing up in log files?
None.
I am really baffeled with this problem. I have no idea what to do next. Have enabled server-status in Apache and when the scripted site is being access the cpu load is around 2.5%.
Regards, /mysteron
--- On Mon, 6/9/08, Bent Terp bent@nagstrup.dk wrote:
From: Bent Terp bent@nagstrup.dk Subject: Re: [CentOS] Help, PHP/Mysql connections are so slow. To: "CentOS mailing list" centos@centos.org Date: Monday, June 9, 2008, 10:42 AM
communicate with MySQL5. On this server, PHP/Mysql
connections are dead
slow and unresponsive. It takes sometimes up to a
minute to list tables
in phpmyadmin for example.
Have you tried other protocols? Is it really only http transfers that are slow?
Have you tried pinging 100 times and see if you get dropped packets?
Are there any errors from the netcards showing up in log files?
BR Bent _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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