Http error 500

crltzn07 · 28 March 2019 03:51

Hi all,

I am always having HTTP ERROR 500 on may librenms server.

And when I ran the ./validate.php

Below [FIX] always shows on the logs

====================================

Component	Version
LibreNMS	1.49-115-g4e4ceff
DB Schema	2019_02_10_220000_add_dates_to_fdb (132)
PHP	7.2.15-1+ubuntu16.04.1+deb.sury.org+1
MySQL	10.0.36-MariaDB-0ubuntu0.16.04.1
RRDTool	1.5.5
SNMP	NET-SNMP 5.7.3
====================================

[OK] Composer Version: 1.8.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[FAIL] The poller (librenms) has not completed within the last 5 minutes, check the cron job.
[FAIL] Some folders have incorrect file permissions, this may cause issues.
[FIX]:
sudo chown -R librenms:librenms /opt/librenms
sudo setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
sudo chmod -R ug=rwX /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
Files:
/opt/librenms/bootstrap/cache/packages.php

Thanks in Advance

Chas · 28 March 2019 08:18

Did you try run those fixes ?

Did you configure apache to disable old php module(s) and load php 7.2 on your Ubuntu 16.04?

e.g https://www.liquidweb.com/kb/install-php-7-2-ubuntu-16-04/

crltzn07 · 29 March 2019 01:32

hi chas,

Yeah i already run the chown and chmod command, but whenever i run the validate.php it always show the “Some folders have incorrect file permissions”

What is the fixes here?
[FAIL] The poller (librenms) has not completed within the last 5 minutes, check the cron job.

Did you configure apache to disable old php module(s) and load php 7.2 on your Ubuntu 16.04?
-Yes i already disabled it

Thanks

spencerbutler · 29 March 2019 01:45

@crltzn07 did you check your php-fpm socket paths are in the correct spot for php7.2? and php-fpm is running?

crltzn07 · 29 March 2019 01:58

hi spencerbutler

Yes it is running.

crltzn07 · 1 April 2019 10:38

Hi all,

Any luck to fix the issue?

Thanks

TheGreatDoc · 1 April 2019 13:10

Did you pointed your apache/nginx config to the new php7.2 fpm sock?

What shows your webserver error log?

crltzn07 · 2 April 2019 06:29

hi,

Yes it is pointed,

Below is the logs on apache error log

Thanks

TheGreatDoc · 2 April 2019 07:00

You forgot to change PHP memory limit.

Increase It

crltzn07 · 2 April 2019 07:46

Hi,

How many memory_limit will i put? I have 4gb ram.

Thanks

Chas · 2 April 2019 08:29

That depends on how much memory you have available.

In your config.php in librenms you can use $config['php_memory_limit'] = 256;

Start with 256 , if the error keeps occuring in your logfile, up to 512, 1024 etc.

crltzn07 · 3 April 2019 02:47

hi,

http 500 is now fixed. but on validate.php below error still occurs

Thanks

TheGreatDoc · 3 April 2019 07:07

Dont care about that specific file.

About the cron…check and make sure it is in cron and run correctly. It may be an old poller so you just need to remove it from the pollers /pollers/tab=pollers/

crltzn07 · 3 April 2019 09:25

hi,

Below are the cronjobs

Thanks

TheGreatDoc · 3 April 2019 11:22

And how many pollers do you have in /pollers/tab=pollers/??

crltzn07 · 4 April 2019 01:24

hi,

Where can i find it?

Thanks

TheGreatDoc · 4 April 2019 04:46

In http://yourlibrenms/pollers/tab=pollers/

crltzn07 · 4 April 2019 04:50

hi @TheGreatDoc

TheGreatDoc · 4 April 2019 06:14

Thats it.

Maybe you renamed your host from librenms to backbone?

Just remove the librenms poller and you are good to go

crltzn07 · 4 April 2019 07:56

Hi,

Thanks to all… All are now fixed.