Hello everyone, i’ve followed the poller installation one by one, and checked the link for troubleshooting why a poller might be doing, which is:
and these are the results from following those steps:
Check 1: Network connections
from poller netstat -plant | egrep '5556|5669'
tcp 0 0 0.0.0.0:5556 0.0.0.0:* LISTEN 6152/perl
tcp 0 0 10.99.8.214:5556 10.99.8.118:60702 ESTABLISHED 6152/perl
from central: netstat -plant | egrep '5669|5556'
tcp 0 0 0.0.0.0:5669 0.0.0.0:* LISTEN 18458/cbd
tcp 0 0 127.0.0.1:46150 127.0.0.1:5669 ESTABLISHED 18446/centengine
tcp 0 0 10.99.8.118:60702 10.99.8.214:5556 ESTABLISHED 18510/gorgone-proxy
tcp 0 0 127.0.0.1:5669 127.0.0.1:46150 ESTABLISHED 18458/cbd
for the firewall i got:
systemctl status firewalld:

on both poller and central.
Check 2: centreon-engine process:
the results:
systemctl status centengine
centengine.service - Centreon Engine
Loaded: loaded (/usr/lib/systemd/system/centengine.service; enabled; preset: disabled)
Active: active (running) since Tue 2025-05-27 17:07:45 CEST; 17h ago
Process: 7929 ExecReload=/bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Main PID: 6509 (centengine)
Tasks: 21 (limit: 35773)
Memory: 4.3M
CPU: 1min 10.498s
CGroup: /system.slice/centengine.service
└─6509 /usr/sbin/centengine /etc/centreon-engine/centengine.cfg
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/commectors.cfg'
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/meta_timeperiod.c'
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/meta_host.cfg'
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/meta_services.cfg'
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/tags.cfg'
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Processing object config file '/etc/centreon-engine/severities.cfg'
May 28 00:00:17 poller2 systemd[1]: Reloading Centreon Engine.
May 27 17:07:45 poller2 centengine[6509]: [2025-05-27T17:07:45.404+02:00] [config] [info] Reading resource file '/etc/centreon-engine/resource.cfg'
May 28 00:00:17 poller2 systemd[1]: Reloaded Centreon Engine.Check 3: centreon-gorgone process:
on the poller:
```
systemctl status gorgoned
```
```
gorgoned.service - Centreon Gorgone
Loaded: loaded (/etc/systemd/system/gorgoned.service; enabled; preset: disabled)
Active: active (running) since Tue 2025-05-27 16:15:15 CEST; 18h ago
Main PID: 6152 (perl)
Tasks: 15 (limit: 35773)
Memory: 60.3M
CPU: 17.158s
CGroup: /system.slice/gorgoned.service
├─6152 /usr/bin/perl /usr/bin/gorgoned --config=/etc/centreon-gorgone/config.yaml --logfile=/var/log/centreon-gorgone/gorgoned.log --severity-debug
├─6155 gorgone-engine
├─6156 gorgone-action
├─6157 gorgone-audit
└─6158 gorgone-dbcleaner
May 27 16:15:15 poller2 systemd[1]: Started Centreon Gorgone.
May 27 17:07:38 poller2 sudo[6468]: centreon-gorgone: PWD=/; USER=root; COMMAND=/usr/sbin/service centengine reload
May 27 17:07:38 poller2 sudo[6467]: centreon-gorgone: PWD=/; USER=root; COMMAND=/bin/systemctl restart centreon_vmware.service
May 27 17:07:43 poller2 sudo[6498]: centreon-gorgone: PWD=/; USER=root; COMMAND=/bin/systemctl restart centreon_vmware.service
May 27 17:07:43 poller2 sudo[6502]: centreon-gorgone: PWD=/; USER=root; COMMAND=/usr/sbin/service centengine restart
```on the centreon central server:
```
systemctl status gorgoned
```
```
gorgoned.service - Centreon Gorgone
Loaded: loaded (/etc/systemd/system/gorgoned.service; enabled; preset: disabled)
Active: active (running) since Tue 2025-05-27 17:06:14 CEST; 17h ago
Main PID: 18448 (perl)
Tasks: 48 (limit: 48675)
Memory: 148.2M
CPU: 43.898s
CGroup: /system.slice/gorgoned.service
├─18448 /usr/bin/perl /usr/bin/gorgoned --config=/etc/centreon-gorgone/config.yaml --logfile=/var/log/centreon-gorgone/gorgoned.log --severity-deb>
├─18509 gorgone-httpserver
├─18510 gorgone-proxy
├─18511 gorgone-proxy
├─18512 gorgone-proxy
├─18513 gorgone-proxy
├─18514 gorgone-proxy
├─18515 gorgone-engine
├─18516 gorgone-dbcleaner
├─18517 gorgone-statistics
├─18518 gorgone-cron
├─18519 gorgon-action
├─18520 gorgone-autodiscovery
├─18521 gorgon-audit
├─18522 gorgone-nodes
└─18523 gorgon-legacycmd
May 27 17:06:14 centreon systemd[1]: Started Centreon Gorgone.
```Check 4: centreon-broker process:
on the central and on the poller: they’ are the same
rpm -qa | grep cbmod
centreon-broker-cbmod-24.10.6-1.e19.x86_64
ddddd
```
systemctl status cbd
```
```
cbd.service - Centreon Broker watchdog
Loaded: loaded (/usr/lib/systemd/system/cbd.service; enabled; preset: disabled)
Active: active (running) since Tue 2025-05-27 17:06:14 CEST; 17h ago
Process: 18593 ExecReload=/bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Main PID: 18445 (cbwd)
Tasks: 37 (limit: 48675)
Memory: 7.9M
CPU: 5min 10.222s
CGroup: /system.slice/cbd.service
├─18445 /usr/sbin/cbwd /etc/centreon-broker/watchdog.json
├─18458 /usr/sbin/cbd /etc/centreon-broker/central-broker.json
└─18459 /usr/sbin/cbd /etc/centreon-broker/central-rrd.json
May 27 17:06:14 centreon cbwd[18458]: [2025-05-27T17:06:14.141+02:00] [core] [info] Centreon Broker 24.10.6
May 27 17:06:14 centreon cbwd[18458]: [2025-05-27T17:06:14.141+02:00] [core] [info] Copyright 2009-2021 Centreon
May 27 17:06:14 centreon cbwd[18458]: [2025-05-27T17:06:14.141+02:00] [core] [info] License ASL 2.0 <http://www.apache.org/licenses/LICENSE-2.0>
May 27 17:06:14 centreon cbwd[18459]: [2025-05-27T17:06:14.143+02:00] [core] [info] Centreon Broker 24.10.6
May 27 17:06:14 centreon cbwd[18459]: [2025-05-27T17:06:14.143+02:00] [core] [info] Copyright 2009-2021 Centreon
May 27 17:06:14 centreon cbwd[18459]: [2025-05-27T17:06:14.143+02:00] [core] [info] License ASL 2.0 <http://www.apache.org/licenses/LICENSE-2.0>
May 27 17:06:36 centreon systemd[1]: Reloading Centreon Broker watchdog.
May 27 17:06:36 centreon systemd[1]: Reloaded Centreon Broker watchdog.
May 27 17:06:39 centreon systemd[1]: Reloaded Centreon Broker watchdog.
May 27 17:06:39 centreon systemd[1]: Reloaded Centreon Broker watchdog.
```Check the logs: they’re located in the /var/log/centreon-broker directory. On the Central, look for the central-broker-master.log file; on the poller, look for the module-poller.log file:
I see no errors in those files as for poller:

I don’t see any file for it.
as for:
grep -i cbmod.so /var/log/centreon-engine/centengine.log I got:
[2025-05-28T10:35:56.911+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:36:11.914+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:36:26.917+02:00 ] [processing] [error] [6509] failover: global error: 2025-05-28T10:36:41.920+02:00] [processing] [error] [6509] failover: global error: [
[2025-05-28T10:36:56.923+02:00] [processing] [error] [6509] failover: global error: [2025-05-28T10:37:11.926+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:37:26.929+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:37:41.932+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:37:56.935+02:00] [processing] [error] [6509] failover: global error: [2025-05-28T10:38:11.938+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:38:26.940+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:38:41.943+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:38:56.946+02:00] [processing] [error] [6509] failover: global error:
[2025-05-28T10:39:11.949+02:00] [processing] [error] [6509] failover: global error:
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.
failover: 'central-module-master-output' cannot connect endpoint.dd



