Yep, please proceed and I can review.
On Sun, Mar 29, 2015 at 9:42 AM Andrea Aime <[email protected]>
wrote:
> On Sun, Mar 29, 2015 at 6:29 PM, Jody Garnett <[email protected]>
> wrote:
>
>> I had a patch for the caching getTypeNames() / createTypeNames() which
>> we had to revert to a logic error.
>>
>> Would caching getTypeNames() alleviate this performance issue?
>>
>
> Yes, it would, but would have side effects too, the method would stop
> returning fresh information (and
> we don't have a quick way to determine is something changed in a
> database), and the change
> Ben reverted had issues in the filesystem cases, where it seemed like we
> had a fast way instead so...
> not sure how we can effectively bring it back?
>
> The change I'm proposing has less side effects, createTypeNames() would
> still return fresh values,
> ensureEntry() may be fooled by the cache we setup at the first time we
> cannot find an entry in
> case a table got removed, but the feature source created that way would
> fail at the first data access attempt... so,
> it just ends up failing a bit later down the road.
> And it would not fail in case a table got added, which would instead be
> another failure case for createTypeNames()
> caching.
>
> Cheers
> Andrea
>
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