Parsoid should not disable GC unless a config var is set
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	cscott
	Jul 8 2020, 2:36 PM

Description

For LTS we should probably protect the code which disables GC with a configuration variable, and set it to true in production but false by default.

Details

	Subject	Repo	Branch	Lines +/-
	Make garbage collection on PHP 7.2 configurable via ParsoidSettings	mediawiki/services/parsoid	master	+14 -1
	Make GC in PHP 7.2 configurable in Parsoid, but don't change production	operations/mediawiki-config	master	+2 -1

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Open		None	T254508 Reconcile Parsoid memory usage w/ legacy parser and mediawiki core
Resolved		• ssastry	T254509 Turn on garbage collection for Parsoid cluster
Declined		None	T257462 Parsoid should not disable GC unless a config var is set

Event Timeline

cscott created this task.Jul 8 2020, 2:36 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJul 8 2020, 2:36 PM

cscott mentioned this in T248343: Uncached VisualEditor w/ Parsoid/PHP (no JS, no RESTBase) for MW 1.35 LTS.Jul 8 2020, 2:38 PM

cscott added a parent task: T254509: Turn on garbage collection for Parsoid cluster.Jul 8 2020, 6:05 PM

Change 610339 had a related patch set uploaded (by C. Scott Ananian; owner: C. Scott Ananian):
[mediawiki/services/parsoid@master] Make garbage collection on PHP 7.2 configurable via ParsoidSettings

https://gerrit.wikimedia.org/r/610339

gerritbot added a project: Patch-For-Review.Jul 8 2020, 6:37 PM

Change 610341 had a related patch set uploaded (by C. Scott Ananian; owner: C. Scott Ananian):
[operations/mediawiki-config@master] Make GC in PHP 7.2 configurable in Parsoid, but don't change production

https://gerrit.wikimedia.org/r/610341

Not entirely sold on this because the code required is a little bit heavyweight, but these are the patches required if we decide to do this.

• ssastry added a project: Parsing-Active-Work.Jul 9 2020, 5:34 PM

I am not convinced yet we need to do this. We can chat in today's meeting.

Change 610341 abandoned by C. Scott Ananian:
[operations/mediawiki-config@master] Make GC in PHP 7.2 configurable in Parsoid, but don't change production

Reason:
We decided we didn't need to make this configurable.

https://gerrit.wikimedia.org/r/610341

Change 610339 abandoned by C. Scott Ananian:
[mediawiki/services/parsoid@master] Make garbage collection on PHP 7.2 configurable via ParsoidSettings