Acknowledgements missing

[madhudeva]

Hi Team,

To day we had to repair mysqld and restart nagios because we dont see any hosts and services in Nagios XI Gui.
We had done this many times but we never lost acknowledgements.
But today we had lost all acknowledgements. Is ther any way to get back the acknowledgements?

Regards,
Madhu

[scottwilkerson]

Acknowledgements aren't stored in the DB but in the status.dat and retention.dat file.

Did someone change any settings in the nagios.cfg that would have turned off

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retain_state_information

or any of the

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retain_*_attribute_mask

settings?

http://nagios.sourceforge.net/docs/3_0/ ... nformation

[madhudeva]

We didnt change anything in nagios.cfg file. Below is the out put.
/usr/local/nagios/etc# cat nagios.cfg | grep -i retain
retained_contact_host_attribute_mask=0
retained_contact_service_attribute_mask=0
retained_host_attribute_mask=0
retained_process_host_attribute_mask=0
retained_process_service_attribute_mask=0
retained_service_attribute_mask=0
retain_state_information=1
use_retained_program_state=1
use_retained_scheduling_info=0

What could be the problem ?

[scottwilkerson]

Could you post the output of

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cat /usr/local/nagios/etc/nagios.cfg|grep retention

Does the file listed in state_retention_file exist, and if so what are the permissions?

Do you happen to have a RAM DISK setup on this server?

[madhudeva]

/usr/local/nagios/var/archives# cat /usr/local/nagios/etc/nagios.cfg|grep retention
retention_update_interval=60
state_retention_file=/usr/local/nagios/var/retention.dat

/usr/local/nagios/var/archives# ls -ld /usr/local/nagios/var/retention.dat
-rw------- 1 nagios nagios 1069164 Mar 31 14:06 /usr/local/nagios/var/retention.dat

We have not ran any RAM DISK program sometimes we will clear cache using below command..
echo 3 > /proc/sys/vm/drop_caches
will this command cause any trouble?

[abrist]

For the most part, dropping the cache should have little effect. In fact most of the time, it just hurts performance. Just out of curiosity, is the following set on any objects?

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retain_nonstatus_information 0

http://tracker.nagios.org/view.php?id=417

[madhudeva]

we have retain_nonstatus_information defined in the following templates only..

/usr/local/nagios/etc# grep -i retain_nonstatus_information *
hosttemplates.cfg: retain_nonstatus_information 1
hosttemplates.cfg: retain_nonstatus_information 1
servicetemplates.cfg: retain_nonstatus_information 1
servicetemplates.cfg: retain_nonstatus_information 1
servicetemplates.cfg: retain_nonstatus_information 1

[sreinhardt]

OK, that should be fine, that it is only defined there. When the acknowledgments disappeared, was the system rebooted, nagios service restarted, an apply config performed, or anything of that nature? Also how many nagios processes do you have running?

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ps -ef | grep bin/nag

[madhudeva]

After doing mysql repair we resarted nagios service and the acknowledgements disappeared.. and I do see that there are lot of nagios processes running..
i used killall nagios and restarted the nagios service.. we have over 14 acknowledgements and all are gone.. ( apply config not performed )

[abrist]

If you stop the nagios process, does the retention.dat file persist?

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service nagios stop
ls -la /usr/local/nagios/var/retention.dat
service nagios start