Nagios Support Forum

Posted: **Fri Jul 10, 2020 7:36 am**

Hello Team ,

This is regarding Nagios XI . We have upgraded the nagiosxi on 12th june 2020 .After the upgradation it was observed load on worker becomes zero .

On restarting the gearmand and nagios on nagios server . Load gradually increases on worker and checks start going but slowly again checks stop going and again load becomes zero .

On checking the nagios.cfg file this entry was observed .

# Added by NDO 'make install-broker-line' on Fri Jun 12 21:42:35 IST 2020
#broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg

When we comment above line , things become ok and checks starts going from worker .

We also observed below line and observed ndo2db service is also not available after the nagios upgradation

# NDOUtils module
# Commented out by NDO 'make install-broker-line' on Fri Jun 12 21:42:35 IST 2020
#broker_module=/usr/local/nagios/bin/ndomod.o config_file=/usr/local/nagios/etc/ndomod.cfg

Please guide on the above scenario , Is it safe to comment that line .As after uncommenting checks stops going from worker . And what is this new feature .

Please find nagios.cfg file output also .

[root@AHEL-NAGIOS01 etc]# vi nagios.cfg
perfdata_timeout=5
precached_object_file=/usr/local/nagios/var/objects.precache
resource_file=/usr/local/nagios/etc/resource.cfg
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
retention_update_interval=60
service_check_timeout=120
service_freshness_check_interval=60
service_inter_check_delay_method=s
service_interleave_factor=s
soft_state_dependencies=0
state_retention_file=/usr/local/nagios/var/retention.dat
status_file=/var/nagiosramdisk/status.dat
status_update_interval=10
temp_file=/usr/local/nagios/var/nagios.tmp
temp_path=/var/nagiosramdisk/tmp
use_aggressive_host_checking=0
use_regexp_matching=0
use_retained_program_state=1
use_retained_scheduling_info=1
use_syslog=1
use_true_regexp_matching=0

#broker_module=/usr/lib64/mod_gearman/mod_gearman_nagios4.o config=/etc/mod_gearman/module.conf eventhandler=no

broker_module=/usr/lib64/mod_gearman/mod_gearman_nagios4.o config=/etc/mod_gearman/module.conf eventhandler=no

# Added by NDO 'make install-broker-line' on Fri Jun 12 21:42:35 IST 2020
#broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg

Posted: **Fri Jul 10, 2020 3:37 pm**

HI,

Right now there is a known issue with Mod Gearman in 5.7.1 and we should have a maintenance release out very soon (next week) to address this issue. If you are running Cent OS 7, try loading the ndo before the mod-gearman broker module and see if the issue is resolved. Be sure to restart the nagios service when making any changes.

Code: Select all

broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg
broker_module=/usr/lib64/mod_gearman/mod_gearman_nagios4.o config=/etc/mod_gearman/module.conf eventhandler=no

If that doesn't resolve the issue as this is not a test server and you cannot revert back, then re-install ndo2bd following the steps below.

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:

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:

Code: Select all

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

Then start the nagios service:

Code: Select all

systemctl start nagios

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