Upgrade FAN 2.2 to FAN 2.3

Take a Backup

The next thing to do is to take a backup of your database. Because if you want go back, you’ll need to restore the database.
(FAN Standalone or Database)

# mysqldump centreon2 | gzip > centreon2-backup.sql.gz
# mysqldump centreon2_storage | gzip > centreon2_storage-backup.sql.gz
# mysqldump nagios | gzip > nagios-backup.sql.gz

Backup your nagvis maps (FAN Standalone or Central)

# tar czf nagvis-maps-backup.tar.gz /etc/nagvis

Backup Centreon config :

tar czf centreon-config.tar.gz /etc/centreon

Pre-requisites : update YUM

Make you sure, FAN 2.2 is updated and all packages CentOS. FAN repository is http://lkco.gezen.fr/FAN/repository/2.2/$basearch/
(FAN Standalone, Central or Database)
Is not case, modify the file /etc/yum.repos.d/FAN.repo :

[FAN]
name=FAN2.2
baseurl=http://lkco.gezen.fr/FAN/repository/2.2/$basearch/
gpgkey=http://lkco.gezen.fr/FAN/repository/RPM-GPG-KEY-FAN-1
enabled=1
priority=5

Run :

# yum clean all
# yum update

Check that you have installed the latest version of Centreon provided by FAN 2.2.

# rpm -qa | grep centreon-
centreon-plugins-2.2.2-fan.2
centreon-trap-2.2.2-fan.2
centreon-www-2.2.2-fan.2
centreon-storage-2.2.2-fan.2
pear-centreon-0.1-fan.15
centreon-core-2.2.2-fan.2
centreon-database-2.2.2-fan.2

Upgrade FAN 2.3

FAN Standalone, Central or Database

Modify the file /etc/yum.repos.d/FAN.repo (FAN Standalone, Central or Database) :

[FAN]
name=FAN2.3
baseurl=http://www.fullyautomatednagios.org/FAN/repository/2.3/$basearch/
gpgkey=http://www.fullyautomatednagios.org/FAN/repository/RPM-GPG-KEY-FAN-1
enabled=1
priority=5

Create the file /etc/yum.repos.d/graphviz.repo  (FAN Standalone or Central) :

[Graphviz]
name=graphviz
gpgcheck=1
baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el5/$basearch/os/
enabled=0
gpgcheck=0

Clear yum cache :

# yum clean all

On FAN Standalone or Central, run :

# yum remove rrdtool-php
# yum --enablerepo=Graphviz update

On FAN Database, run

# yum update

FAN-poller

Modify the file /etc/yum.repos.d/FAN.repo

[FAN]
name=FAN2.3
baseurl=http://www.fullyautomatednagios.org/FAN/repository/2.3/$basearch/
gpgkey=http://www.fullyautomatednagios.org/FAN/repository/RPM-GPG-KEY-FAN-1
enabled=1
priority=5

Clear yum cache :

# yum clean all
# yum install centreon-trap
# yum update

Update centreon 2.2.2 to centreon 2.3.3

Now, connect to interface Centreon and follow the steps to update the database.

(FAN Standalone or Central)

Go to http://FAN-SERVER/centreon/

Reconfigure rrdtool version :

In Centreon, go to Administration > Options > RRDTool set : “1.3″ to RRDTool Version

Finally, reboot the server

# reboot

Postupgrade Distributed mode

On FAN-central, you need to reconfigure fan-database, run :

# system-config-distributed-monitoring configdatabase-createuser

Second, you need to reconfigure all poller who are active

# system-config-distributed-monitoring poller-configtrap

Select a poller to need to reconfigure.

Troubleshooting

Nagios :

If you use check_centreon_snmp_remote_storage plugin maybe, you met this error :

ERROR:  Received noSuchName(2) error-status at error-index 4.

Delete all files /tmp/remote_storage_cache_*

# rm  /tmp/remote_storage_cache_*

Nagvis :

If you met this error :

Invalid JSON response: Not Found The requested URL /nagvis/frontend/nagvis-js/index.php&_t=1334583708000 was not found on this server.

Solution :

1. Clear the cache of your browser

2. Remove  all files in /var/lib/nagvis/tmpl/cache and /var/lib/nagvis/tmpl/compile