Nagios did not exit in timely manner

[pradeepanan]

Sure. I will look into it. This was the setup since the server was deployed and it was yeard ago. Its kinda weird why its happening all of a done.

[tgriep]

Try that and post back your results.

[pradeepanan]

Sure will do

[pradeepanan]

I was about to make changes that you have recommended above. Before that i was see logs where i found messages like below,

Error: max retries exceeded sending message to queue. Kernel queue parameters may neeed to be tuned

nms ndo2db: Message sent to queue.
nms ndo2db: Warning: queue send error, retrying...

I am not sure whether ndoutils got lots of queue messages or stuck somewhere. So i stopped ndo2b service. After that, i can see next check was wroking like a charm with no issue. I kept this in trend for 2 days and so far no issues (touch wood).

So i think there is some issue in ndoutils or it piled of queue messages.

[tgriep]

There are some entries you can edit on your server to help out in the ndoutils and the kernel message queue errors.
Open /etc/sysctl.conf with a text editor. Edit the file to match the following values:

Code: Select all

# Controls the maximum size of a message, in bytes
kernel.msgmnb = 131072000
# Controls the default maxmimum size of a mesage queue
kernel.msgmax = 131072000
# Controls the maximum shared segment size, in bytes
kernel.shmmax = 4294967295
# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 268435456
## The maximum number of messages allowed in any one message queue
kernel.msgmni = 256000

Note: If you don't have these entries in the "/etc/sysctl.conf" file, just add them to the end of the file.
After these settings are saved to the file, run:

Code: Select all

sysctl -p

So the system will load the changes. Try that and see if that helps.

[pradeepanan]

I have increased it and looks good now. Thanks a lot for spending hours of your precious time.

[tgriep]

Your welcome. Let us know if we can mark this post as solved so we can close and lock it up.

[pradeepanan]

Sure. This issue was solved and can be closed. Thanks again