commit 74c5e4cce42ae601c07b447e100f097c15ebf9d2
Author: Evan Prodromou <evan@status.net>
Date: Thu Oct 20 12:48:52 2011 -0400
Add back in some optimization indices lost in schema conversion
commit ef5c2acfcd123b25910a1c8bb4ae01a3f9608e5e
Author: Evan Prodromou <evan@status.net>
Date: Thu Oct 20 12:29:57 2011 -0400
restore some of the lost optimized indices on notice table
commit fb1dfa9e98ded23fb5bdebae6465424a8cb8acd6
Author: Evan Prodromou <evan@status.net>
Date: Thu Oct 20 10:40:07 2011 -0400
Use popular notice stream for favorited page
commit e1d409ff738e39061ad35589d546ce9bed456975
Author: Evan Prodromou <evan@status.net>
Date: Thu Oct 20 10:32:23 2011 -0400
Use a caching stream for popular notice section
Instead of a big cached query, we now use a caching notice stream for
the popular notice section. It uses a single-table query at the
bottom, then scopes the notices and filters for silenced users. This
should be much nicer to our database servers.
Also clears the popular cache when someone favors or disfavors
something. A nice optimization would be to save the last weights and
re-calculate them at invalidation time, adding the new notice (or not)
depending on its own score. That will have to wait for another day,
though.
commit e9b7ab4c26c95e755adaff53c3957dcfca31c16b
Author: Evan Prodromou <evan@status.net>
Date: Thu Oct 20 10:31:14 2011 -0400
Let CachingNoticeStream users skip the ';last' optimization
This should resolve the issues darkip was reporting with user_im_prefs entries returning null immediately after insertion (seen with memcached off, so it was happening even with the built-in in-process cache in the Cache base class).
What was happening was that the initial pkeyGet() would end up saving a negative cache entry under the form with the fields sorted in the key, as via multicacheKey():
'statusnet:blaguette:user_im_prefs:screenname,transport:brionv,sms' => 'N;'
then we'd do an insert() on the new entry, saving cache entries for the non-sorted key names returned by _allCacheKeys():
'statusnet:blaguette:user_im_prefs:transport,screenname:sms,brionv' => 'O...'
'statusnet:blaguette:user_im_prefs:user_id,transport:1234,sms' => 'O...'
but the next query via pkeyGet() still saw the negative lookup cache from before, and came back with null.
Now, _allCacheKeys() sorts the fields in the keys by using the same key-builder function, and queries pick up the same thing you just inserted. :)
Memcached_DataObject doesn't quite fully understand unique indexes, and can't properly build cache keys for compound unique or primary keys.
Managed_DataObject has more information in its schema data, so we can build a proper list.
Evan Prodromou
Evan Prodromou
Siebrand Mazeland
Michele macno Azzolari
Brion Vibber
Zach Copley