Nagios Support Forum

Posted: **Tue Jun 10, 2014 2:34 pm**

I presume you have restarted the server so that the new kernel limits are loaded, correct?
run the following command to potentially fix the postgres vacuum issue:

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echo "vacuum;vacuum analyze;vacuum full;"|psql nagiosxi postgres

Posted: **Tue Jun 10, 2014 2:39 pm**

What is the Nagios XI version that you upgraded from?

Posted: **Tue Jun 10, 2014 3:31 pm**

I have run the vacuum and rebooted again.

I upgraded from XI 2012 - 2012R2.9

Thanks

Chris

Posted: **Tue Jun 10, 2014 3:57 pm**

Did you see any errors, while running the vacuum on the postgres? Let us know if the problem resurfaces.

Posted: **Tue Jun 10, 2014 4:07 pm**

No errors at all while running the vacuum commands

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Jun 10 22:04:35 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:35 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:36 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:36 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:37 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:37 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:38 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:38 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:39 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:39 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:40 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:40 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:41 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:41 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:42 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:42 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:43 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:43 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:44 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:44 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:45 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:45 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:46 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:46 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:47 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:47 qualngs ndo2db[2294]: Warning: queue send error, retrying...
Jun 10 22:04:48 qualngs ndo2db[2294]: Message sent to queue.
Jun 10 22:04:48 qualngs ndo2db[2294]: Warning: queue send error, retrying...

Errors are back almost straight away.

What is the maximum Kernel settings I can use does anyone know?

Thanks

Chris

Posted: **Wed Jun 11, 2014 4:22 pm**

Before we keep increasing your kernel message queues, how about we try setting less worker processes. Considering message queues should only be used for inter-process communication, if we limit the number of workers which left to up to core could be as high as 18 ((6 physical cores + 6 hyper-threaded cores) X 1.5 = 18). Plus each worker spawns processes to run the actual checks, thats a whole lot of processes. Try altering the nagios.cfg setting check_workers to check_workers=6. Do a service nagios restart, and see how that gets along.

Posted: **Thu Jun 12, 2014 5:25 am**

Hi,

I have decreased the

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core_workers=6
max_concurrent=20

Still get

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Jun 12 11:24:00 qualngs ndo2db[2321]: Message sent to queue.
Jun 12 11:24:00 qualngs ndo2db[2321]: Warning: queue send error, retrying...
Jun 12 11:24:01 qualngs ndo2db[2321]: Message sent to queue.
Jun 12 11:24:01 qualngs ndo2db[2321]: Warning: queue send error, retrying...

Thanks

Chris

Posted: **Thu Jun 12, 2014 4:58 pm**

It seems like we may need to schedule a remote session to further troubleshoot this issue. You can send us an email at [email protected] to open a new ticket in our ticketing system.

BTW, can you run the following command and show us the output?

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/usr/local/nagios/bin/ndo2db | head -2

Posted: **Fri Jun 13, 2014 3:29 am**

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[root@qualngs ~]# /usr/local/nagios/bin/ndo2db | head -2

NDO2DB 2.0.0
[root@qualngs ~]#

Posted: **Fri Jun 13, 2014 10:21 am**

Is a remote session an option for you?

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