Nagios 5.7.1 - BPI Inaccessible after apply config changes

dariusz.nalazek · Post by **dariusz.nalazek** » Thu Jun 25, 2020 4:47 am

After migration to 5.7.1, we find out some strange behavior of Nagios and particularly BPI monitoring.

After apply new changes in configuration (host/service or so), Nagios shows 0 hosts and 0 services for some period of time, Nagios performs config’s refresh/reload or so....
During the time BPI starts sending alerts because essential hosts are unavailable, so all the big bosses concern about quality of their business services.

Is there any way to speed up data reload or change settings in BPI to recognize the data reload state?
For now, as workaround, we extend timeouts inside BPI and particular services, but in this way we slow down information flow for critical services

It's new behavior to 5.7.x (as we watch the graphs of availability), apply configuration changes in 5.6.x was transparent to BPI monitoring.

Darek.

Post by **cdienger** » Thu Jun 25, 2020 4:31 pm

This will be addressed in the 5.7.2 release expected asap(mid next weekish unnamed sources have said). In the meantime you can continue with the work around or you can revert the ndo install to work like it did previously.

The steps for reverting to the old ndo process on a Cent/RHEL 7 machine are:

Code: Select all

systemctl stop nagios
cd /tmp
rm -rf /tmp/nagiosxi
wget https://assets.nagios.com/downloads/nagiosxi/5/xi-5.6.14.tar.gz
tar zxf xi-5.6.14.tar.gz
cd /tmp/nagiosxi/subcomponents/ndoutils
./install
systemctl enable ndo2db
systemctl start ndo2db

Then edit your /usr/local/nagios/etc/nagios.cfg and make sure this line is uncommented:

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broker_module=/usr/local/nagios/bin/ndomod.o config_file=/usr/local/nagios/etc/ndomod.cfg

Make sure this line is commented:

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#broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg

Then start the nagios service:

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systemctl start nagios

or on a Cent/RHEL 6 machine:

Code: Select all

service nagios stop
cd /tmp
rm -rf /tmp/nagiosxi
wget https://assets.nagios.com/downloads/nagiosxi/5/xi-5.6.14.tar.gz
tar zxf xi-5.6.14.tar.gz
cd /tmp/nagiosxi/subcomponents/ndoutils
./install
service ndo2db start

Then edit your /usr/local/nagios/etc/nagios.cfg and make sure this line is uncommented:

Code: Select all

broker_module=/usr/local/nagios/bin/ndomod.o config_file=/usr/local/nagios/etc/ndomod.cfg

Make sure this line is commented:

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#broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg

Then start the nagios service:

Code: Select all

service nagios start

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Nagios 5.7.1 - BPI Inaccessible after apply config changes

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