error.log file size is increasing

[sneha.irali]

Hi Team,

As checked I see the below errors been captured on the error.log file under /var/log/httpd/ path.

[Tue Apr 20 01:42:13.237109 2021] [:error] [pid 39680] [client 10.160.113.208:61211] PHP Notice: Undefined variable: allow_html in /usr/local/nagiosxi/html/includes/utils-status.inc.php on line 235, referer: http://10.x.x.x/nagiosxi/includes/compo ... l&host=abc
[Tue Apr 20 01:42:13.237145 2021] [:error] [pid 39680] [client 10.160.113.208:61211] PHP Notice: Undefined index: problem_acknowledged in /usr/local/nagiosxi/html/includes/utils-status.inc.php on line 183, referer: http://10.x.x.x/nagiosxi/includes/compo ... l&host=abc

What would be the reason and how do we mitigate it.

[vtrac]

Hi,
I have just asked development team was told that you can actually disable php notices in the php.ini file

I also got the following KB from my boss:

This page has some examples for turning these off.
https://www.php.net/manual/en/function. ... orting.php

// Report all errors except E_NOTICE
error_reporting(E_ALL & ~E_NOTICE);

I have tried it on "/etc/php.ini".

I changed my from:

Code: Select all

error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT

To:

Code: Select all

error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT  & ~E_NOTICE

Then restart httpd:

Code: Select all

systemctl restart httpd

Best Regards,
Vinh

[sneha.irali]

I'm little confused here as the Link you sahred me says as below:

// Reporting E_NOTICE can be good too (to report uninitialized
// variables or catch variable name misspellings ...)
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);

Then what's the pointing is adding E_NOTICE, isnt its just one level of log we are adding. Correct me if my understanding is wrong.

[vtrac]

Hi,
I asked our developers why they do not defined those variable before using them, so that we don't see those errors in the "error_log" file.

Here's the reply I received:

You can actually disable php notices in the php.ini file as well, we don't do it by default

will look at those though as well

I have test by adding the "~E_NOTICE" to the "error_reporting" inside the "/etc/php.ini" file and looks like it did work.


Best Regards,
Vinh

[sneha.irali]

Thanks for the info.

However I just want you to know that we have enabled a external REST API Integration to poll the information from Nagios. Can I know if there is any known impact with such kind of integrations additionally I do not find any best practices with REST API Integration, can you help me with it if we have any.

[sneha.irali]

Also can you confirm if the file size grows post making the below changes:

I have test by adding the "~E_NOTICE" to the "error_reporting" inside the "/etc/php.ini" file and looks like it did work.

and explain me what E_NOTICE mean.

[vtrac]

Hi,
We as support tech work on technical issues, but not programming related. We will try our best to help ...

Since we work on one issue per ticket, please open another forum ticket for API issue(s).

As to "E_NOTICE", I am NOT a PHP programmer, so I checked with development team regarding the error you have posted in the "error_log" file and was told to add E_NOTICE to the php.ini to turn that off.

I google and found:

Code: Select all

In PHP, a variable that doesn't exist will return null rather than causing an error.

Best Regards,
Vinh