Nagios 'could not connect' to MySQL database

Werner Flamme werner.flamme at ufz.de
Tue Aug 16 13:58:53 CEST 2005


Richard.Luys at vanderlet.nl schrieb am 16.08.2005 12:57:
> I know, this sounds like a newbie question, but unfortunately it seems a
> bit more complex...
> 
---snip---
> When I check the nagios.log I get the following errors:
> [1123752497] Finished daemonizing... (New PID=26747) 
> [1123752497] Error: Could not connect to MySQL database 'nagios' on host
> 'localhost' using username 'nagios' and password 'removed'.  Status data
> will not be saved!
> 
> As I said, the provided host, database, username and password are
> correct. I can use them with the mysql-client to connect to the
> database, and use SELECT and INSERT statements succesfully.
> 
> It looks like nagios cannot find the database; the MySQL-logging does
> not show any connection attempts from the Nagios-process... Port (3306)
> is used, and telnet localhost 3306 works fine.

Yes, AFAIk there is an issue when you use localhost - the connection will
be made via socket instead of port 3306.

Try your machine's name or IP address (as you find in /etc/hosts) instead
of 'localhost' in the config - same error then?

> 
> Who helps me out?
Dunno yet ;-)
>  
> 
> Thanks in advance and best regards,
> VANDERLET B.V.  
> 
> R. (Richard) Luys 
> 

HTH
Werner

-- 
Werner Flamme, Abt. WKDV
UFZ Umweltforschungszentrum Leipzig-Halle GmbH,
Permoserstr. 15, 04318 Leipzig - http://www.ufz.de
eMail: werner.flamme at ufz.de, Tel.: (0341) 235-2500







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