Reconcile Parsoid memory usage w/ legacy parser and mediawiki core
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	cscott
	Jun 4 2020, 6:58 PM

Description

This is a tracking bug for a number of memory-related issues that block parsoid from fully replacing the legacy parser (T55784: [EPIC] Use Parsoid HTML for all page views).

Some of these are PHP environment configurations which differ between Parsoid and the core mediawiki cluster.

Others address the resource limits put on wikitext, which would cause pages which render in the legacy parser not to render in Parsoid, or vice versa.

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Status	Assigned	Task
Open	None	T84936 Release VisualEditor-MediaWiki as "1.0"
Open	None	T50429 [Epic] Support editing parts of a page in VisualEditor-MediaWiki
Open	None	T54365 Explore performance gains from progressive (JIT?) de-alienation in VisualEditor
Open	None	T174303 Copy-pasting linked ISBN numbers from view mode HTML into VisualEditor inserts wikitext links to Special:BookSources (it should turn them into magic links?)
Open	None	T54091 The read HTML should have hinting to allow full DOM copying (as opposed to just rich copying) from read mode into VE surfaces
Open	None	T55784 [EPIC] Use Parsoid HTML for all page views
Open	None	T258836 [EPIC] Ensure Parsoid meets performance criteria for serving read views on the Parsoid cluster
Open	None	T254508 Reconcile Parsoid memory usage w/ legacy parser and mediawiki core
Open	None	T254509 Turn on garbage collection for Parsoid cluster
Open	None	T230861 PHP 7.2 is very slow on an allocation-intensive benchmark
Declined	None	T257462 Parsoid should not disable GC unless a config var is set
Open	None	T254519 Remove array cast workaround from Parsoid
Open	None	T254523 Lint wikitext against Parsoid and legacy parser wikitext metrics
Open	None	T254522 Set appropriate wikitext limits for Parsoid to ensure it doesn't OOM
Open	None	T254521 Collect data and correlate Parsoid memory usage with legacy parser memory usage

Event Timeline

cscott created this task.Jun 4 2020, 6:58 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJun 4 2020, 6:58 PM

cscott added a subtask: T254509: Turn on garbage collection for Parsoid cluster.Jun 4 2020, 7:12 PM

ssastry triaged this task as Medium priority.Jun 4 2020, 8:05 PM

ssastry moved this task from Needs Triage to Missing Functionality on the Parsoid board.Jun 4 2020, 8:12 PM

cscott added a subtask: T254519: Remove array cast workaround from Parsoid.Jun 4 2020, 8:28 PM

cscott added subtasks: T254522: Set appropriate wikitext limits for Parsoid to ensure it doesn't OOM, T254523: Lint wikitext against Parsoid and legacy parser wikitext metrics.Jun 4 2020, 8:57 PM

cscott added a parent task: T55784: [EPIC] Use Parsoid HTML for all page views.Jun 4 2020, 9:09 PM

ssastry mentioned this in T256459: Increased "Allowed memory size exhausted" exceptions from MediaWiki since 2020-06-25 ~16:00.Jun 29 2020, 3:32 PM

ssastry added a project: Parsoid-Rendering.Jul 15 2020, 3:25 AM

MBinder_WMF moved this task from Missing Functionality to Current & Upcoming Work on the Parsoid board.Jul 16 2020, 6:19 PM

ssastry edited parent tasks, added: T258836: [EPIC] Ensure Parsoid meets performance criteria for serving read views on the Parsoid cluster; removed: T55784: [EPIC] Use Parsoid HTML for all page views.Jul 24 2020, 9:23 PM

ssastry renamed this task from [EPIC] Reconcile Parsoid memory usage w/ legacy parser and mediawiki core to Reconcile Parsoid memory usage w/ legacy parser and mediawiki core.Jul 24 2020, 9:37 PM

ssastry removed a subtask: T254522: Set appropriate wikitext limits for Parsoid to ensure it doesn't OOM.Jul 24 2020, 9:42 PM

ssastry moved this task from Current & Upcoming Work to Following Quarter on the Parsoid board.Nov 16 2020, 5:53 PM

Reconcile Parsoid memory usage w/ legacy parser and mediawiki coreOpen, MediumPublicActions

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Reconcile Parsoid memory usage w/ legacy parser and mediawiki core
Open, MediumPublic
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