MySQL Errors

I keep getting these errors sent to my technical contact:

Database error in vBulletin :

Link-ID == false, connect failed
mysql error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

mysql error number: 2002

Date: Wednesday 22nd of January 2003 05:51:46 PM
Script: /forums/index.php
Referer:

Can anyone tell me what this is coming from?

[NTLDR]

vB cannot conect to your MySQL server, hence the error emails.

[joelrotunda85]

so is this something just caused by the database being unavailable or down?

[Xenon]

yes

[joelrotunda85]

thanks for the help Xenon!

[Steve Machol]

This error means either MySQL crashed, it's not running or it can't find the socket. You need to contact your host about this. Here is more info on this error:

http://www.mysql.com/doc/C/a/Can_not...to_server.html

[joelrotunda85]

Thanks for that as well Steve. I will defintely be in touch with my hosting company.