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Set maxSerializedEntitySize to 3000
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Description

Back in 2015 we set the max entity size based on the largest revision at the time.
https://github.com/wikimedia/operations-mediawiki-config/commit/968516d4638448a1992498ca173c3ba92dcf1994
This was due to us having severe UI issues at the time.

Now we want to Set maxSerializedEntitySize to 3000, to allow slightly larger entities, as some are again reaching the limit that we set 4 years ago (T215380)

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alaa_wmde set the point value for this task to 1.Mar 12 2019, 4:01 PM

Change 496161 had a related patch set uploaded (by Mahveotm; owner: Mahveotm):
[operations/mediawiki-config@master] Increased maxSerializedEntitySize from 2500 to 3000

https://gerrit.wikimedia.org/r/496161

Added this to tomorrows (19th March) Mid-day SWAT

Change 496161 merged by jenkins-bot:
[operations/mediawiki-config@master] Increased maxSerializedEntitySize from 2500 to 3000

https://gerrit.wikimedia.org/r/496161

Mentioned in SAL (#wikimedia-operations) [2019-03-20T11:16:15Z] <ladsgroup@deploy1001> Synchronized wmf-config/InitialiseSettings.php: SWAT: [[gerrit:496161|Increased maxSerializedEntitySize from 2500 to 3000 (T217739)]] (duration: 01m 47s)

If this was something that more people were aware we are going to do, then it deserves an announcement so that they know that they can store slightly bigger entities than the previous limit.

I think we agreed not to bother announcing this and instead just let entities to grow at a natural rate, rather than give people a target of reaching the new limit.