Maniphest T219268

Elasticsearch 6: the classic similarity is deprecated
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	dcausse
	Mar 26 2019, 9:40 AM

Description

We should reindex remaining indices with BM25 and completely remove classic from CirrusSearch code.

Details

	Subject	Repo	Branch	Lines +/-
	Drop classic similarity configs	mediawiki/extensions/CirrusSearch	master	+41 -54
	[cirrus] Use bm25 similarity for all wikis	operations/mediawiki-config	master	+18 -34

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Status	Assigned	Task
Resolved	None	T248925 Make MediaWiki release tarball compatible with PHP 8.0
Resolved	Jdforrester-WMF	T300463 Make PHP 8.0 voting on MW master
Resolved	None	T283275 Make MW master tests pass on PHP 8.0
Resolved	Reedy	T268861 CirrusSearch uses Elastica's Match class
Resolved	Reedy	T268863 Translate uses Elastica's Match class
Resolved	matthiasmullie	T268866 WikibaseMediaInfo uses Elastica's Match class
Invalid	None	T268864 WikibaseCirrusSearch uses Elastica's Match class
Resolved	Reedy	T268865 WikibaseLexemeCirrusSearch uses Elastica's Match class
Resolved	EBernhardson	T271777 Bump rufin/elastica (and related libraries) to versions that support PHP 8.0
Resolved	Gehel	T263142 [EPIC] Upgrade Elasticsearch to version 7.10
Resolved	EBernhardson	T218994 Deprecation warning on elasticsearch 6
Resolved	dcausse	T219268 Elasticsearch 6: the classic similarity is deprecated
Resolved	dcausse	T219533 Reindex space less languages wikis to use BM25
Open	None	T219534 Test MLR models for zhwiki, jawiki and kowiki

Event Timeline

dcausse created this task.Mar 26 2019, 9:40 AM

dcausse mentioned this in T218994: Deprecation warning on elasticsearch 6 .Mar 26 2019, 9:47 AM

dcausse claimed this task.Mar 28 2019, 3:36 PM

dcausse triaged this task as Medium priority.

dcausse moved this task from needs triage to Current work on the Discovery-Search board.

dcausse edited projects, added Discovery-Search (Current work); removed Discovery-Search.

Change 499795 had a related patch set uploaded (by DCausse; owner: DCausse):
[operations/mediawiki-config@master] [cirrus] Use bm25 similarity for all wikis

https://gerrit.wikimedia.org/r/499795

Change 499796 had a related patch set uploaded (by DCausse; owner: DCausse):
[mediawiki/extensions/CirrusSearch@master] Drop classic similarity configs

https://gerrit.wikimedia.org/r/499796

dcausse moved this task from Incoming to Needs review on the Discovery-Search (Current work) board.Mar 28 2019, 4:02 PM

Change 499795 merged by jenkins-bot:
[operations/mediawiki-config@master] [cirrus] Use bm25 similarity for all wikis

https://gerrit.wikimedia.org/r/499795

Mentioned in SAL (#wikimedia-operations) [2019-04-01T18:42:35Z] <dcausse@deploy1001> Synchronized wmf-config/InitialiseSettings.php: T219268: [cirrus] Use bm25 similarity for all wikis (duration: 00m 51s)