GWicke has uploaded a new change for review. (
https://gerrit.wikimedia.org/r/353056 )
Change subject: Better error handling for math render errors
......................................................................
Better error handling for math render errors
So far, rare render errors caused by blips in the network or the mathoid
service produce a big red warning in the page, and cause a tracking
category to be added. The rendered content along with the error message
is cached normally, which means that temporary errors are persisted
indefinitely.
As a consequence, editors need to periodically perform null edits to
remove temporary render errors from caches. T136812 documents a history
of this.
This patch aims to improve error handling through two changes:
1) Limit caching of rendered content to 10 minutes. As a consequence,
temporary render errors should clear themselves up fairly quickly,
eliminating the need for manual follow-up. The 10 minute timeout was
chose as a compromise between relatively timely cleanup, and limited
load from re-renders after math trouble.
2) Track render errors in a dedicated category. This avoids mixing
syntax errors with temporary render errors, which should make cleanup
efforts a lot simpler.
Change-Id: If7537ed9117fb736a09f4396b7d55d774ce9674f
---
M Math.hooks.php
1 file changed, 5 insertions(+), 1 deletion(-)
git pull ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/Math
refs/changes/56/353056/1
diff --git a/Math.hooks.php b/Math.hooks.php
index 2950b66..223b80e 100644
--- a/Math.hooks.php
+++ b/Math.hooks.php
@@ -229,7 +229,11 @@
} else {
LoggerFactory::getInstance( 'Math' )->warning(
"Rendering failed. Printing error message." );
- $parser->addTrackingCategory(
'math-tracking-category-error' );
+ // Set a short parser cache time (10 minutes) after
encountering
+ // render issues, but not syntax issues.
+ $parser->getOutput()->updateCacheExpiry( 600 );
+ // Add a tracking category specialized on render errors.
+ $parser->addTrackingCategory(
'math-tracking-category-render-error' );
return $renderer->getLastError();
}
Hooks::run( 'MathFormulaPostRender',
--
To view, visit https://gerrit.wikimedia.org/r/353056
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: If7537ed9117fb736a09f4396b7d55d774ce9674f
Gerrit-PatchSet: 1
Gerrit-Project: mediawiki/extensions/Math
Gerrit-Branch: master
Gerrit-Owner: GWicke <gwi...@wikimedia.org>
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