Archiving process Error - PHP problem

WordPress Plugin
1

Hello,
We have just installed the Matomo plugin in our WebSite. Everything is OK, except the archiving process.
When we manually try to archive reports by clicking on the button (Diagnostics / Trouble Shouting menu), we get the following error message :

‘Got invalid response from API request: ?module=API&method=CoreAdminHome.archiveReports&idSite=1&period=day&date=2023-01-09&format=json&trigger=archivephp. The response was empty. This usually means a server error. A solution to this error is generally to increase the value of ‘memory_limit’ in your php.ini file. For more information and the error message please check in your PHP CLI error log file. As this core:archive command triggers PHP processes over the CLI, you can find where PHP CLI logs are stored by running this command: php -i | grep error_log’
‘Error unserializing the following response from ?module=API&method=CoreAdminHome.archiveReports&idSite=1&period=day&date=2023-01-09&format=json&trigger=archivephp: ‘’’
*

In the php.ini file I have the setting :
memory_limit = 1024M
which is “normally” enough, that’s why we don’t understand this error message.

Thanks a lot for your help,
Best Regards,
Jérôme

2

Hi @Mutuelle403 thanks for reaching out. Can you please provide us a copy of your system check for review: How do I find and copy the system report in Matomo for WordPress?

3

Hello,
Thanks a lot for your reply.
Here the requested report.
Thanks a lot for your help and support,
Best Regards,
Jérôme

Beginning :

WordPress Plugins

MU Plugins

  • ManageWP - Worker Loader: 1.0.0

Plugins

  • Bandeau cookies: 0.1
  • Better Search Replace: 1.4 (Network enabled)
  • Classic Editor: 1.6.2
  • Contact Form 7: 5.4.1
  • Cookiebot CMP by Usercentrics | The reliable, flexible and easy to use consent solution: 4.2.3
  • Font Awesome: 4.3.1
  • ManageWP - Worker: 4.9.16 (Network enabled)
  • Matomo Analytics - Ethical Stats. Powerful Insights.: 4.13.0
  • PHP Compatibility Checker: 1.5.2
  • Popup Builder: 4.0.4
  • Redirection: 5.1.3
  • Simpliest Social Share: 1.1
  • Soil: 3.7.2
  • UpdraftPlus - Backup/Restore: 1.16.63
  • Wordfence Security: 7.5.6 (Network enabled)
  • WordPress Importer: 0.7
  • WPBakery Page Builder: 6.7.0
  • WP Media folders: 1.1.10
  • WP Super Cache: 1.7.4
  • Yoast SEO: 17.4
  • Active Plugins: 17 (worker better-search-replace classic-editor contact-form-7 cookiebot cvw-social-share font-awesome js_composer matomo php-compatibility-checker popup-builder redirection soil updraftplus wordpress-importer wordpress-seo wp-media-folders)
  • Theme: mutuelle403 (mutuelle403)

Server

  • Server Info: Apache
  • Apache AddHandler support: Supported
  • PHP OS: Linux
  • PHP Version: 7.3.31
  • PHP SAPI: fpm-fcgi
  • PHP Binary Name: php-fpm
  • PHP Maxmind DB extension: Not loaded
  • PHP Error Reporting: 0 After bootstrap: 0
  • PHP Found Binary: php -q
  • Timezone: UTC
  • WP timezone: Europe/Paris
  • Locale: fr_FR
  • User Locale: fr_FR
  • Memory Limit: 192M (At least 128MB recommended. Depending on your traffic 256MB or more may be needed.)
  • WP Memory Limit: 128M
  • WP Max Memory Limit: 128M
  • Timezone version: 2020.4
  • Time: 1673940532
  • Max Execution Time: 180
  • Max Post Size: 128M
  • Max Upload Size: 134217728
  • Max Input Vars: 2500
  • Disabled PHP functions: No
  • zlib.output_compression is off: Yes
  • Curl Version: 7.52.1, OpenSSL/1.0.2u
  • Suhosin installed: No
4

End :
PHP cli

  • PHP cli Version: 7.3.31
  • MySQLi support: ok

Database

  • MySQL Version: 8.0.18
  • Mysqli Connect: Yes
  • Force MySQL over Mysqli: No
  • DB Prefix: m403_
  • DB CHARSET: utf8
  • DB COLLATE:
  • SHOW ERRORS: No
  • SUPPRESS ERRORS: No
  • Uses Socket: No
  • Uses IPv6: No
  • Matomo tables found: 81
  • DB tables exist: Yes
  • Matomo users found: 4
  • Matomo sites found: 1
  • Permissions obligatoires: OK

Browser

  • Browser: (Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36)
  • Language: fr,en-us,en
5

Hi @Mutuelle403 this may be related to the memory limit on your server not applying

  • Memory Limit: 192M (At least 128MB recommended. Depending on your traffic 256MB or more may be needed.)

Are you able to ensure this is applied as 256MB or more ?

6

Hello,
Thanks a lot for your reply. Unfortunately I cannot change this parameter because the Web site is hosted on a shared environment.
Nevertheless, we only have around 200 connections per day, so I don’t think that the memory limit is the bottleneck.
Looking on Internet, I have seen that this error message, most of the time, has nothing to do with the memory limit :-(.
Do you have nay other ideas ?
Thanks a lot fro your help and support,
Best Regards,
Jérôme

7

Hi @Mutuelle403 You can disable the archiving asynchronous mode (by adding in your wp-config.php file the following content;

if (!defined(‘MATOMO_SUPPORT_ASYNC_ARCHIVING’)){define(‘MATOMO_SUPPORT_ASYNC_ARCHIVING’, false);}

it solves 90% of the archiving problem.

But if you want to get the origin of the problem, you will need to create a feature request on our issue tracker here:
https://github.com/matomo-org/matomo/issues

This is so we have it noted down for the team to look into when possible.

We’re looking forward to hearing from you or seeing your report on Github,

8

Hi Varun,

Fantastic !! adding this line in wp-config.php has solved the problem.
Now, data are correctly archived.
Thanks a lot for you help and support, I give you 5 stars ! :slight_smile:

Best Regards,
Jérôme

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