cacti Poller not running , no graph appears

[mo8a]

Hi,

i am new to use cacti
i have just installed cacti on ubuntu server 20.04 LTS
cacti : v 1.2.18
spine : 1.2.18

i have no graph on my cacti ,

the sudo ls -l /var/www/html/cacti/ give this result :

ubuntu@ubuntu:~$ sudo ls -l /var/www/html/cacti/
[sudo] password for ubuntu:
total 2764
-rwxr-xr-x 1 www-data www-data 237017 Jul 4 21:29 CHANGELOG
-rwxr-xr-x 1 www-data www-data 15171 Jul 4 21:29 LICENSE
-rwxr-xr-x 1 www-data www-data 11317 Jul 4 21:29 README.md
-rwxr-xr-x 1 www-data www-data 4341 Jul 4 21:29 about.php
-rwxr-xr-x 1 www-data www-data 62971 Jul 4 21:29 aggregate_graphs.php
-rwxr-xr-x 1 www-data www-data 18515 Jul 4 21:29 aggregate_items.php
-rwxr-xr-x 1 www-data www-data 25705 Jul 4 21:29 aggregate_templates.php
-rwxr-xr-x 1 www-data www-data 14674 Jul 4 21:29 auth_changepassword.php
-rwxr-xr-x 1 www-data www-data 30295 Jul 4 21:29 auth_login.php
-rwxr-xr-x 1 www-data www-data 18903 Jul 4 21:29 auth_profile.php
-rwxr-xr-x 1 www-data www-data 24203 Jul 4 21:29 automation_devices.php
-rwxr-xr-x 1 www-data www-data 36742 Jul 4 21:29 automation_graph_rules.php
-rwxr-xr-x 1 www-data www-data 42897 Jul 4 21:29 automation_networks.php
-rwxr-xr-x 1 www-data www-data 31517 Jul 4 21:29 automation_snmp.php
-rwxr-xr-x 1 www-data www-data 18771 Jul 4 21:29 automation_templates.php
-rwxr-xr-x 1 www-data www-data 38723 Jul 4 21:29 automation_tree_rules.php
-rwxr-xr-x 1 www-data www-data 2959 Jul 4 21:29 boost_rrdupdate.php
drwxr-xr-x 6 www-data www-data 4096 Jul 4 21:29 cache
-rw-r--r-- 1 www-data www-data 112204 Jul 5 01:28 cacti-spine-1.2.18.tar.gz
-rwxr-xr-x 1 www-data www-data 125565 Jul 4 21:29 cacti.sql
-rwxr-xr-x 1 www-data www-data 7302 Jul 4 21:29 cactid.php
-rwxr-xr-x 1 www-data www-data 29268 Jul 4 21:29 cdef.php
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 cli
-rwxr-xr-x 1 www-data www-data 1934 Jul 4 21:29 clog.php
-rwxr-xr-x 1 www-data www-data 1940 Jul 4 21:29 clog_user.php
-rwxr-xr-x 1 www-data www-data 30872 Jul 4 21:29 cmd.php
-rwxr-xr-x 1 www-data www-data 8843 Jul 4 21:29 cmd_realtime.php
-rwxr-xr-x 1 www-data www-data 24290 Jul 4 21:29 color.php
-rwxr-xr-x 1 www-data www-data 24859 Jul 4 21:29 color_templates.php
-rwxr-xr-x 1 www-data www-data 13259 Jul 4 21:29 color_templates_items.php
-rwxr-xr-x 1 www-data www-data 34390 Jul 4 21:29 data_debug.php
-rwxr-xr-x 1 www-data www-data 35478 Jul 4 21:29 data_input.php
-rwxr-xr-x 1 www-data www-data 49787 Jul 4 21:29 data_queries.php
-rwxr-xr-x 1 www-data www-data 36236 Jul 4 21:29 data_source_profiles.php
-rwxr-xr-x 1 www-data www-data 67127 Jul 4 21:29 data_sources.php
-rwxr-xr-x 1 www-data www-data 44122 Jul 4 21:29 data_templates.php
drwxr-xr-x 3 www-data www-data 4096 Jul 4 21:30 docs
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 formats
-rwxr-xr-x 1 www-data www-data 14317 Jul 4 21:29 gprint_presets.php
-rwxr-xr-x 1 www-data www-data 21985 Jul 4 21:29 graph.php
-rwxr-xr-x 1 www-data www-data 5764 Jul 4 21:29 graph_image.php
-rwxr-xr-x 1 www-data www-data 9136 Jul 4 21:29 graph_json.php
-rwxr-xr-x 1 www-data www-data 17544 Jul 4 21:29 graph_realtime.php
-rwxr-xr-x 1 www-data www-data 38698 Jul 4 21:29 graph_templates.php
-rwxr-xr-x 1 www-data www-data 9524 Jul 4 21:29 graph_templates_inputs.php
-rwxr-xr-x 1 www-data www-data 26042 Jul 4 21:29 graph_templates_items.php
-rwxr-xr-x 1 www-data www-data 31964 Jul 4 21:29 graph_view.php
-rwxr-xr-x 1 www-data www-data 12267 Jul 4 21:29 graph_xport.php
-rwxr-xr-x 1 www-data www-data 88384 Jul 4 21:29 graphs.php
-rwxr-xr-x 1 www-data www-data 26907 Jul 4 21:29 graphs_items.php
-rwxr-xr-x 1 www-data www-data 32811 Jul 4 21:29 graphs_new.php
-rwxr-xr-x 1 www-data www-data 65137 Jul 4 21:29 host.php
-rwxr-xr-x 1 www-data www-data 30239 Jul 4 21:29 host_templates.php
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 images
drwxr-xr-x 8 www-data www-data 4096 Aug 19 12:32 include
-rwxr-xr-x 1 www-data www-data 5721 Jul 4 21:29 index.php
drwxr-xr-x 4 www-data www-data 4096 Jul 4 21:29 install
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 lib
-rwxr-xr-x 1 www-data www-data 3495 Jul 4 21:29 link.php
-rwxr-xr-x 1 www-data www-data 21883 Jul 4 21:29 links.php
drwxr-xr-x 4 www-data www-data 4096 Jul 4 21:29 locales
drwxr-xr-x 2 www-data www-data 4096 Aug 19 12:42 log
-rwxr-xr-x 1 www-data www-data 4666 Jul 4 21:29 logout.php
-rwxr-xr-x 1 www-data www-data 38080 Jul 4 21:29 managers.php
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 mibs
-rwxr-xr-x 1 www-data www-data 3411 Jul 4 21:29 permission_denied.php
drwxr-xr-x 8 www-data www-data 4096 Aug 19 12:36 plugins
-rwxr-xr-x 1 www-data www-data 24647 Jul 4 21:29 plugins.php
-rwxr-xr-x 1 www-data www-data 33750 Jul 4 21:29 poller.php
-rwxr-xr-x 1 www-data www-data 38479 Jul 4 21:29 poller_automation.php
-rwxr-xr-x 1 www-data www-data 35597 Jul 4 21:29 poller_boost.php
-rwxr-xr-x 1 www-data www-data 7095 Jul 4 21:29 poller_commands.php
-rwxr-xr-x 1 www-data www-data 8340 Jul 4 21:29 poller_dsstats.php
-rwxr-xr-x 1 www-data www-data 20172 Jul 4 21:29 poller_maintenance.php
-rwxr-xr-x 1 www-data www-data 9882 Jul 4 21:29 poller_realtime.php
-rwxr-xr-x 1 www-data www-data 8830 Jul 4 21:29 poller_recovery.php
-rwxr-xr-x 1 www-data www-data 5720 Jul 4 21:29 poller_reports.php
-rwxr-xr-x 1 www-data www-data 8381 Jul 4 21:29 poller_spikekill.php
-rwxr-xr-x 1 www-data www-data 38522 Jul 4 21:29 pollers.php
-rwxr-xr-x 1 www-data www-data 14552 Jul 4 21:29 remote_agent.php
-rwxr-xr-x 1 www-data www-data 3345 Jul 4 21:29 reports_admin.php
-rwxr-xr-x 1 www-data www-data 3246 Jul 4 21:29 reports_user.php
drwxr-xr-x 5 www-data www-data 4096 Jul 4 21:29 resource
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 rra
-rwxr-xr-x 1 www-data www-data 20178 Jul 4 21:29 rrdcleaner.php
-rwxr-xr-x 1 www-data www-data 11950 Jul 4 21:29 script_server.php
drwxr-xr-x 2 www-data www-data 4096 Aug 19 12:42 scripts
drwxr-xr-x 2 www-data www-data 4096 Jul 4 21:29 service
-rwxr-xr-x 1 www-data www-data 40948 Jul 4 21:29 settings.php
-rwxr-xr-x 1 www-data www-data 20567 Jul 4 21:29 sites.php
-rwxr-xr-x 1 www-data www-data 2414 Jul 4 21:29 snmpagent_mibcache.php
-rwxr-xr-x 1 www-data www-data 3688 Jul 4 21:29 snmpagent_mibcachechild.php
-rwxr-xr-x 1 www-data www-data 5510 Jul 4 21:29 snmpagent_persist.php
-rwxr-xr-x 1 www-data www-data 3969 Jul 4 21:29 spikekill.php
drwxrwxr-x 7 www-data www-data 4096 Aug 19 12:38 spine
-rwxr-xr-x 1 www-data www-data 6597 Jul 4 21:29 templates_export.php
-rwxr-xr-x 1 www-data www-data 6072 Jul 4 21:29 templates_import.php
-rwxr-xr-x 1 www-data www-data 64921 Jul 4 21:29 tree.php
-rwxr-xr-x 1 www-data www-data 103532 Jul 4 21:29 user_admin.php
-rwxr-xr-x 1 www-data www-data 29656 Jul 4 21:29 user_domains.php
-rwxr-xr-x 1 www-data www-data 87764 Jul 4 21:29 user_group_admin.php
-rwxr-xr-x 1 www-data www-data 99996 Jul 4 21:29 utilities.php
-rwxr-xr-x 1 www-data www-data 28883 Jul 4 21:29 vdef.php

my Cron entry:

*/5 * * * * www-data php /var/www/html/cacti/poller.php &>/dev/null

my troubleshooting :



i don't know how resolve this probleme,
thanks for help me

[mo8a]

i had restart my server, i have this result :

[mo8a]

for the troubleshooting i have this result :

[macan]

maybe issue with your cron, there isn't path to php:
*/5 * * * * www-data php /var/www/html/cacti/poller.php &>/dev/null

Try:
type php

Output will be something like this:
php is /any/path/to/php

Change your cron:
*/5 * * * * www-data /path/to/php /var/www/html/cacti/poller.php &>/dev/null

[mo8a]

maybe issue with your cron, there isn't path to php:
*/5 * * * * www-data php /var/www/html/cacti/poller.php &>/dev/null

Try:
type php

Output will be something like this:
php is /any/path/to/php

Change your cron:
*/5 * * * * www-data /path/to/php /var/www/html/cacti/poller.php &>/dev/null

thank you