Hi,

so do you think the database connection is the bottleneck? I would need some 
pointer on where to optimize or at least how to find the bottleneck (or how can 
I do some profiling/benchmarking/debugging to find the bottleneck?)

Or is it just normal that an ECQL-Filter on many IDs is very slow?

Best,
Jens



Von: Nachtigall, Jens (init) [mailto:[email protected]]
Gesendet: Freitag, 31. Juli 2015 16:29
An: [email protected]
Betreff: Re: [Geoserver-users] Performance of ECQL-Filter with up to 5000 IDs

It’s Oracle.


Von: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] Im Auftrag von Andrea Aime
Gesendet: Freitag, 31. Juli 2015 16:11
An: Nachtigall, Jens (init)
Cc: 
[email protected]<mailto:[email protected]>
Betreff: Re: [Geoserver-users] Performance of ECQL-Filter with up to 5000 IDs

On Fri, Jul 31, 2015 at 4:02 PM, Nachtigall, Jens (init) 
<[email protected]<mailto:[email protected]>> wrote:
Hi,

I have a WMS request including a rather long ECQL-Filter that matches on 
feature IDs (as described in 
http://docs.geoserver.org/latest/en/user/tutorials/cql/cql_tutorial.html#id-and-list-comparisons).

The filter is like this:
IN ('mylayer.101453', ...up to 5000 IDs here... ,'mylayer.102486')

If there are only a few hundred IDs the response is at about 500ms, but with up 
to 5000 it becomes 15-30 seconds. Any ideas on how to optimize? 2, 3 seconds 
would sound acceptable but half a minute is a bit too much.

What is the datastore backing the request?

Cheers
Andrea

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