[wp-trac] [WordPress Trac] #20316: Garbage collect transients

[WordPress Trac]

#20316: Garbage collect transients
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 Reporter:  nacin           |       Owner:
     Type:  task (blessed)  |      Status:  new
 Priority:  normal          |   Milestone:  3.7
Component:  Database        |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  needs-patch     |
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Comment (by knutsp):

 Unexpiring transients, that happens to be stored in the database, may be
 garbage collected every few minutes. When stored in memory, plugin authors
 have absolutely no guarantee they will be there when retrieved, some those
 plugins/sites are broken by their own nature.

 Garbage collecting expired transients should run often. On DB upgrades all
 transients should be flusehd, just like a cache flush may happen whenever
 reasonable to regain storage space, in memory or on disk.

 The point that upgrades should not be blamed, rightfully or not, for
 breaking things, or adding weight to things already broken, is though a
 valid concern. But if that is important, then core should let this be
 plugin territory for now. Either you dare or you don't. Only doing expired
 transients is to have chickened out, at least for 3.7. Punt. Issue a
 warning in the release, that 3.8 will do it, brutally.

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Ticket URL: <http://core.trac.wordpress.org/ticket/20316#comment:56>
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