Frequently Getting alerts

[Mani.Murugesan]

Hello Team,

one windows server we are getting alerts frequently and the alert is showing the error " WARNING:No data was received from host!"
That server is a backup server but backup scheduling time and alert time is not matching . sometimes alerts time is matched with backup time .

Every alternative days we are getting alerts frequently .
For example today I received alerts for H drive and after sometime it's started working and tomorrow I will receive alerts for I drive.

Could you please help me to resolve it ?

[lmiltchev]

Can you show us how the "failing" services are configured? What is the version of the NSClient++ agent that you are using on the Windows machines? Have you tried restarting the NSClient++ service to see if this is going to resolve the issue? Can you check the nsclient.log for any warnings or errors pertaining to these checks?

[Mani.Murugesan]

Hello,

PFB Screen shot for the service configuration and state history report for failing services.

As per nagios recommendations for all the failing services we have set the Check interval - 5, retry interval -1, max check attempts -5.

Yes we have already tried restarting nsclient++ service but issue not resolved

nsclient version:0.3.9.328

[lmiltchev]

Maybe your Windows server gets really busy, especially during backups, and your check is timing out. Try the following:

1. Increase the "default" value of 30 for the timeout under the [/settings/default] section in the nsclient.ini file on the Windows machine:

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timeout = 60

Save, exit, and restart the nsclient++ service.

2. Modify your "Drive H: Disk Usage" check by adding a timeout to it.

Example:

/usr/local/nagios/libexec/check_nt -H x.x.x.x -s "password" -p 12489 -t 59 -v USEDDISKSPACE -l H -w 80 -c 90

Note: I used a timeout of 59 seconds as the default service timeout is set at 60 in the nagios.cfg file anyway.

Code: Select all

service_check_timeout=60

Let us know if increasing the timeout helps.

Note: If 60 seconds is still not enough, you may need to increase it even more, but you would need to change the service_check_timeout value in the nagios.cfg file too.

[Mani.Murugesan]

Hello,

Now that server is working fine since few days. so we will keep it in under observation . if any issue will come I will try to increase the timeout and check it out.

[lmiltchev]

Sounds good! Let us know if you want us to keep the topic open for the time being. Thank you!

[Mani.Murugesan]

yes...keep the topic open for the time being . let you know once it's resolved completely

[lmiltchev]

Noted.