Last modified: 2014-10-24 14:20:10 UTC

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Bug 57583 - Make deployment prep have continuous replication lag
Make deployment prep have continuous replication lag
Status: NEW
Product: Wikimedia Labs
Classification: Unclassified
deployment-prep (beta) (Other open bugs)
unspecified
All All
: Lowest enhancement
: ---
Assigned To: Nobody - You can work on this!
:
Depends on: 60058
Blocks: db-repl-track 51494
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Reported: 2013-11-26 11:05 UTC by Siebrand Mazeland
Modified: 2014-10-24 14:20 UTC (History)
5 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---

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Description Siebrand Mazeland 2013-11-26 11:05:00 UTC 
Replication lag in production can cause weird issues that are very hard to debug. Now that we run automated integration tests, always having a replication lag in our deployment environment may surface issues that developers usually are not aware of, and help us create better code.
Comment 1 Sam Reed (reedy) 2014-04-28 16:02:27 UTC 
(In reply to Siebrand Mazeland from comment #0)
> Replication lag in production can cause weird issues that are very hard to
> debug. Now that we run automated integration tests, always having a
> replication lag in our deployment environment may surface issues that
> developers usually are not aware of, and help us create better code.

From bug 60058

(In reply to Erik Bernhardson from comment #1)
> setting the lag is fairly trivial,  percona makes a tool for it called
> pt-slave-delay.


That, and we need to have slaves setup first...
Comment 2 Antoine "hashar" Musso (WMF) 2014-10-24 14:20:10 UTC 
Marking to lowest priority since nobody is sponsoring this for now.
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