Nagios Support Forum

Dear Expert

DISK CRITICAL - free space: /var/nagiosramdisk 0 MB (0% inode=99%):

its random behavior, during backup process, we found RAMDISK become 99% utilize and NPCD process got stuck (in the night), morning in our working business hours, we restart , Nagios, NPCD, NDO2DB and the issue get resolve

df -h
tmpfs 50M 23M 28M 45% /var/nagiosramdisk

how to fix it? <<<<<<< needed you valueable advice.
I dont think we have to increase RAMDISK, just trial and error
if we increase to 100M?
will be any bad impact on memory consumption, if increase to 100M?

#free
total used free shared buffers cached
Mem: 24607496 19943908 4663588 46292 181168 17821836
-/+ buffers/cache: 1940904 22666592
Swap: 8388604 120600 8268004

regards

Set it to 512M.

Please PM a copy of your profile as well, you can download it from Admin > System Profile > Download Profile.

Dear ssax

Can you please guide how to increase , some steps or PDF document?
Plz provide maximum info/guide line as this Forum/POST/Thread will remain so long and will benefit many users.

Will solve our problem?

Will be any bad impact on memory usage as we increasing RAM disk?

regards

I'll need the profile to determine what occurred.

Are you running EL7?

If so, you can edit this file and change it to 512:
If on EL6, change it in this file:
Then do this on EL7:
Or this on EL6:
Or you can reboot.

Dear All

I dare and looks its done..........the below steps.....for all....who want to take risk.

its el6 (Centos 6)
cat /etc/redhat-release
CentOS release 6.9 (Final)

i did not find /etc/sysconfig/nagios

as mentioned in the PDF document, I did not find lines matching but its like this as below

vi /etc/init.d/nagios

if test ! -f $NagiosRunFile; then
echo "No lock file found in $NagiosRunFile"
exit 1
fi

i dared and changed the file size as below

df -h
tmpfs 50M 23M 28M 45% /var/nagiosramdisk

free -m
total used free shared buffers cached
Mem: 24030 19708 4322 47 170 17743
-/+ buffers/cache: 1794 22236
Swap: 8191 116 8075

vi /etc/fstab (changed 50m to 200m)
tmpfs /var/nagiosramdisk tmpfs defaults,size=200m 0 0

service nagios stop
service npcd stop
service ndo2db stop
umount /var/nagiosramdisk
mount /var/nagiosramdisk
df -h
tmpfs 200M 0 200M 0% /var/nagiosramdisk <<< when services not running
service ndo2db start
service npcd start
service nagios start

df -h
tmpfs 200M 22M 179M 11% /var/nagiosramdisk

free -m
total used free shared buffers cached
Mem: 24030 19884 4146 47 170 17752
-/+ buffers/cache: 1961 22069
Swap: 8191 116 8075

So it's resolved after increasing the RAMDisk size?

I generally start at 512M but it doesn't really matter as long as it's big enough.

dear ssax....Thanks

yes, resolved.....now only 12% utilization of nagiosRAMdisk

plz close the post/thread.

HI,

plz close the post/thread.

Thanks for the update, we'll close this out.