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> Replication lag on toolserver enwiki mirror, When will it end?
Replication lag on enwiki's toolserver database mirror
How long until it clears?
Days [ 0 ] ** [0.00%]
Weeks [ 2 ] ** [28.57%]
Months [ 4 ] ** [57.14%]
Years [ 1 ] ** [14.29%]
Is adding a hash for revision text worth this?
No [ 6 ] ** [85.71%]
Yes [ 1 ] ** [14.29%]
Total Votes: 14
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jsalsman
post Tue 10th April 2012, 9:59pm
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For details see MNT-1225
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jsalsman
post Fri 11th May 2012, 7:19pm
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So much for weeks.
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Retrospect
post Mon 14th May 2012, 12:00pm
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QUOTE(jsalsman @ Fri 11th May 2012, 8:19pm) *

So much for weeks.

If the developers would just get on with it instead of tossing each other it would get done. Maybe, so much for months.
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Emperor
post Mon 14th May 2012, 6:53pm
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Would anyone care to dumb this down a bit?
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Tarc
post Mon 14th May 2012, 7:42pm
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QUOTE(Emperor @ Mon 14th May 2012, 2:53pm) *

Would anyone care to dumb this down a bit?


Looks like they're adding a field to the en.wiki db; every entry in there has to be touched, and it is taking longer than initially anticipated.

If I followed the breadcrumbs correctly, it may have to do with this;

https://svn.wikimedia.org/viewvc/mediawiki?...revision=109565

This post has been edited by Tarc: Mon 14th May 2012, 7:43pm
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jsalsman
post Sun 20th May 2012, 5:38am
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QUOTE(Tarc @ Mon 14th May 2012, 1:42pm) *
Looks like they're adding a field to the en.wiki db; every entry in there has to be touched, and it is taking longer than initially anticipated.


Yes, the new field is a hash value for every revision of every page, which will help check whether a series of edits actually made any change. I don't see any evidence that such a check could ever happen often enough that an ordinary string comparison of the page text is insufficiently fast.

In the mean time a whole lot of toolserver scripts, queries, and bots are broken or buggy, including some that are very important for behind the scenes maintenance.
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