RE: Symbolic link needed with mysql and PHP?

["Stormont, Stephen (IMS)" <StormontS@xxxxxxxxxx>]

mysql> status

--------------

mysql  Ver 14.14 Distrib 5.1.61, for redhat-linux-gnu (x86_64) using readline 5.1

 

Connection id:          16

Current database:

Current user:           root@localhost

SSL:                    Not in use

Current pager:          stdout

Using outfile:          ''

Using delimiter:        ;

Server version:         5.1.61 Source distribution

Protocol version:       10

Connection:             Localhost via UNIX socket

Server characterset:    latin1

Db     characterset:    latin1

Client characterset:    latin1

Conn.  characterset:    latin1

UNIX socket:            /var/lib/mysql/mysql.sock

Uptime:                 50 min 29 sec

 

 

From: Jonathan Sundquist [mailto:jsundquist@xxxxxxxxx]
Sent: Friday, October 26, 2012 2:18 PM
To: Stormont, Stephen (IMS)
Cc: php-install@xxxxxxxxxxxxx
Subject: Re: Symbolic link needed with mysql and PHP?

 

When you look at your database configuration where does it say the socket is located?  

On Fri, Oct 26, 2012 at 1:12 PM, Stormont, Stephen (IMS) <StormontS@xxxxxxxxxx> wrote:

                I followed those steps which is what led us to the creation of the symbolic link, but I was attempting to find out why we would even need to do that.  Was there some option that we missed at build time for PHP that would have bypassed this issue?

 

From: Jonathan Sundquist [mailto:jsundquist@xxxxxxxxx]
Sent: Friday, October 26, 2012 2:11 PM
To: Stormont, Stephen (IMS)
Cc: php-install@xxxxxxxxxxxxx
Subject: Re: Symbolic link needed with mysql and PHP?

 

A quick google search turned up a few answers that might help you,

 

http://docs.cacti.net/manual:087:4_help.1_faq#database_setup_seems_to_fail

On Fri, Oct 26, 2012 at 1:03 PM, Stormont, Stephen (IMS) <StormontS@xxxxxxxxxx> wrote:

We have a new CentOS installation using PHP5 and MySQL.  We were having an issue getting Cacti running, but the problem appears to boil down to a PHP issue.

When attempting to access Cacti via the web, we got this error:

FATAL: Cannot connect to MySQL server on 'localhost'. Please make sure you have specified a valid MySQL database name in 'include/config.php'

We checked config.php and everything is configured correctly.

We then looked at "my.cnf" and saw this line:
socket=/var/lib/mysql/mysql.sock

Running "netstat -an | grep mysql" says the following:
unix  2      [ ACC ]     STREAM     LISTENING     11035  /var/lib/mysql/mysql.sock

However, we have to create a symbolic link in /tmp in order to be able to get to the Cacti config screen:
ln -s /var/lib/mysql/mysql.sock mysql.sock

Why do we have to do this though?

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