New install on CentOS 7 Apache2; no graphs or poller

Followed the instructons on the libranms site for installing on CentOS 7 and Apache. Seemed to go well.
Added my local server at for the first device. None of the graphs seems to work, wither being blank, ‘error loading graph’, or red.

  • The output of ./validate.php


Component Version
LibreNMS 1.45-34-gd3f5dc6
DB Schema 270
PHP 7.2.11
MySQL 5.5.60-MariaDB
RRDTool 1.4.8


[OK] Composer Version: 1.7.3
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[FAIL] The poller (redacted) has not completed within the last 5 minutes, check the cron job.
[WARN] Some devices have not been polled in the last 5 minutes. You may have performance issues.
Check your poll log and see:
[WARN] Your local git contains modified files, this could prevent automatic updates.
You can fix this with ./scripts/github-remove
Modified Files:

If it’s an issue with the WebUI then please consider including a screenshot and the browser version you are using.

Pastebin pastes:

Please let me know what else I missed.

hrm… things all of the sudden look better. The 'nothing’s been polled in 15 minutes message is gone,and most graphs are just empty; no errors.
Guess i’ll leave it overnight, and see what it says tomorrow.
But if someone can confirm, everything looks alright, that’d be appreciated.

Did you fix all those errors and warns you had also? Also it takes time for the graphs to build.

the warn about modified files, no, I haven’t done anything with that.

As far as polling, I wasn’t sure the cron job was running, at all. I moved it to the root corntab, and that didn’t seem to work either. Then copied again the non-root cron from the install folder to the cron.d folder again, and after leaving it over night seems better. Graphs are in fact filling in. I may look into that 1 min. polling switch though.

thanks for the reply!

Careful with 1 min polling is very taxing on the system.