[Wikitech-l] Parser cache corruption - FlaggedRevs vs DumpHTML

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Just a quick note -- we encountered an interesting bit of cache pollution today, where an article on de.wikipedia.org was reported as having bogus article links URLs in the form used by the DumpHTML static dumps. This was unexpected, as DumpHTML disables $wgEnableParserCache while it's working; it thus shouldn't save anything to the parser cache. This may have been caused by some overaggressive parser-cache work in FlaggedRevisions, which Aaron has fixed by adding a $wgEnableParserCache check to FlaggedRevs::updatePageCache(). It's possible some bad pages remain in cache; they can be flushed with an ?action=purge or null edit. (If it's safe to do an epoch update or something to force them all out, we could try to do that just in case, but we've had only one report of a bad entry so far.) - -- brion