Blank Screen

This support forum board is for support questions relating to Nagios XI, our flagship commercial network monitoring solution.
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rentsys
Posts: 98
Joined: Wed Oct 16, 2013 11:57 am

Blank Screen

Post by rentsys »

Nagios goes into a blank white screen once I click Access Nagios XI from the welcome page. How do I fix this?
slansing
Posts: 7698
Joined: Mon Apr 23, 2012 4:28 pm
Location: Travelling through time and space...

Re: Blank Screen

Post by slansing »

It may be that postgres or mysql are not started. Can you tail the error log and access log and show the output? Try to access the web interface, and then immediately after, run the following and show the output:

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tail - 50 /var/log/httpd/error_log

tail - 50 /var/log/httpd/access_log

service postgresql restart

service mysqld restart
rmfaria
Posts: 19
Joined: Tue Aug 27, 2013 12:38 pm

Re: Blank Screen

Post by rmfaria »

I got the same error but my customer turned off machine on vmware botton "turn off" direct.

If you run service mysql status that return the stoped status.

You can remove file /var/lib/mysql/mysql.sock and execute command service mysql start,

After you can check again the web access.

Thanks :-)
slansing
Posts: 7698
Joined: Mon Apr 23, 2012 4:28 pm
Location: Travelling through time and space...

Re: Blank Screen

Post by slansing »

Ah, a stuck sock file, this was likely due to someone shutting down the system improperly, be sure they issue:

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shutdown -h now
So the server has time to gracefully exit out the processes, and shut down services. You may want to check for table corruption now:

http://assets.nagios.com/downloads/nagi ... tabase.pdf
rentsys
Posts: 98
Joined: Wed Oct 16, 2013 11:57 am

Re: Blank Screen

Post by rentsys »

Thanks, this can be closed.
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