Media Wiki Troubleshooting: Difference between revisions
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=Internal= | =Internal= | ||
* [[Media_Wiki_Operations#Troubleshooting|Media Wiki Operations]] | |||
* [[ | |||
=Debugging= | =Debugging= | ||
==PHP Info== | |||
Add: | Add a file called <code>info.php</code> in <code>/var/www/mediawiki-*</code>, with the following content, and serve it through the web server: | ||
<pre> | <pre> | ||
<?php phpinfo() ?> | |||
</pre> | </pre> | ||
==PHP Errors== | |||
Add the following to the second line from the top (right below the <?php) of <code>[[Media_Wiki_Concepts#LocalSettings.php|LocalSettings.php]]</code>: | |||
<syntaxhighlight lang='php'> | |||
error_reporting( -1 ); | |||
ini_set( 'display_errors', 1 ); | |||
$wgDebugToolbar = true; | |||
$wgShowExceptionDetails = true; | |||
$wgDevelopmentWarnings = true; | |||
$wgShowDebug = true; | |||
</syntaxhighlight> | |||
This will configure MediaWiki to show the errors in page. | |||
= | Also add in <code>[[Media_Wiki_Concepts#index.php|index.php]]</code>: | ||
<syntaxhighlight lang='php'> | |||
error_reporting( -1 ); | |||
ini_set( 'display_startup_errors', 1 ); | |||
ini_set( 'display_errors', 1 ); | |||
</syntaxhighlight> | |||
Add | ==SQL Errors== | ||
Add in [[Media_Wiki_Concepts#LocalSettings.php|LocalSettings.php]]: | |||
< | <syntaxhighlight lang='php'> | ||
$wgShowSQLErrors = true; | |||
</ | $wgDebugDumpSql = true; | ||
</syntaxhighlight> | |||
=Log Locations= | =Log Locations= | ||
=Common Errors= | |||
==Fails to upload images with 'Fatal exception of type "MWException"'== | |||
Apache error log shows: | |||
<font size=-2> | |||
[...] PHP Warning: failed to mkdir "/var/www/mediawiki-1.26.2/images/lockdir" mode 0777 [...] | |||
</font> | |||
This is caused by [[selinux]] preventing write on the images directory <code>/var/www/mediawiki/images</code>. Fix: [[Media_Wiki_Installation#Enable_File_Uploads|Media Wiki Installation | Enable File Uploads]]. | |||
For more details, see [[Selinux#Permission_Denied_when_Trying_to_Write_in_a_Directory|selinux | Permission Denied when Trying to Write in a Directory]] | |||
==Fails to upload images with "Could not open lock file for "mwstore://local-backend/local-public/..." message in console== | |||
<font size=-2> | |||
Could not open lock file for "mwstore://local-backend/local-public/3/37/Something.png". Make sure your upload directory is configured correctly and your web server has permission to write to that directory. See https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:$wgUploadDirectory for more information. | |||
</font> | |||
SELinux issue, it happened because the <code>images</code> directory did not have the <code>httpd_user_rw_content_t</code> SELinux context type. | |||
==The Header and Footer Contain Deprecation Warnings== | |||
Example: | |||
<font size=-2> | |||
Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /opt/brew/var/www/mediawiki-1.35.14/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 32 | |||
</font> | |||
Configure PHP production error reporting, as shown here: {{Internal|PHP#Error_Reporting|PHP Error Reporting}} | |||
Latest revision as of 19:52, 30 December 2023
External
Internal
Debugging
PHP Info
Add a file called info.php in /var/www/mediawiki-*, with the following content, and serve it through the web server:
<?php phpinfo() ?>
PHP Errors
Add the following to the second line from the top (right below the <?php) of LocalSettings.php:
error_reporting( -1 );
ini_set( 'display_errors', 1 );
$wgDebugToolbar = true;
$wgShowExceptionDetails = true;
$wgDevelopmentWarnings = true;
$wgShowDebug = true;
This will configure MediaWiki to show the errors in page.
Also add in index.php:
error_reporting( -1 );
ini_set( 'display_startup_errors', 1 );
ini_set( 'display_errors', 1 );
SQL Errors
Add in LocalSettings.php:
$wgShowSQLErrors = true;
$wgDebugDumpSql = true;
Log Locations
Common Errors
Fails to upload images with 'Fatal exception of type "MWException"'
Apache error log shows:
[...] PHP Warning: failed to mkdir "/var/www/mediawiki-1.26.2/images/lockdir" mode 0777 [...]
This is caused by selinux preventing write on the images directory /var/www/mediawiki/images. Fix: Media Wiki Installation | Enable File Uploads.
For more details, see selinux | Permission Denied when Trying to Write in a Directory
Fails to upload images with "Could not open lock file for "mwstore://local-backend/local-public/..." message in console
Could not open lock file for "mwstore://local-backend/local-public/3/37/Something.png". Make sure your upload directory is configured correctly and your web server has permission to write to that directory. See https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:$wgUploadDirectory for more information.
SELinux issue, it happened because the images directory did not have the httpd_user_rw_content_t SELinux context type.
Example:
Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /opt/brew/var/www/mediawiki-1.35.14/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 32
Configure PHP production error reporting, as shown here: