Hmm, it's hard to debug since I cannot duplicate the issue and it happens 
for so few users.

AFAIK, both of these guys were on Gingerbread.



On Wednesday, March 21, 2012 10:22:11 PM UTC+8, Kostya Vasilyev wrote:
>
> Are you perhaps running multiple instances of this query at the same
> time, causing contention inside SQLite?
>
> From what you've described, it seems possible - since AsyncTask uses a
> pool of more than one thread, and you also mentioned running this
> query on the UI thread as well.
>
> I would try to use AsyncQueryHandler, which processes requests one at
> a time, or some other mechanism to ensure that these queries are
> serialized -- if only for the sake of debugging.
>
> As far as finding an index, two things come to mind.
>
> One is a cache of prior query results (perhaps using a SparseArray or
> something like it) and then looking up indices in this cache.
>
> The other is writing a count(*) type query just to get the index.
>
> Perhaps you've already considered both, given your vast experience, if
> so, my apologies for suggesting something so obvious.
>
> -- K
>
> 21 марта 2012 г. 16:54 пользователь Zsolt Vasvari <[email protected]> 
> написал:
> > But that should effect both the UI thread query and the worker thread 
> query.
> >  But only one runs slow.
>
>

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