[wp-trac] [WordPress Trac] #11585: WordPress should cache failed feed fetches so as to avoid overloading feed sources

[WordPress Trac]

#11585: WordPress should cache failed feed fetches so as to avoid overloading feed
sources
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 Reporter:  Denis-de-Bernardy  |       Owner:             
     Type:  enhancement        |      Status:  new        
 Priority:  normal             |   Milestone:  3.0        
Component:  Performance        |     Version:  2.9        
 Severity:  normal             |    Keywords:  needs-patch
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 Following up on #11219, which fixed the cause of that particular error,
 but not the one that related to caching of feed errors.

 When SimplePie fails to fetch or parse a feed, it should not hammer
 whichever server the feed came from on every page load. This is bad for
 two reasons: it disturbs the originating server, and it tremendously slows
 down page loads when the feed is in an RSS widget on the front end.

 Instead, we should cache the error for a reasonably long amount of time
 (15 minutes? An hour? More?) and bypass SimplePie until that duration
 expires.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11585>
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