On Fri, Mar 27, 2015 at 11:47 PM, Gavin Montgomery <
[email protected]> wrote:

> To answer the question of requirement, this service is for a national
> mapping application serving thousands of clients concurrently, we very
> shortly realised that the original design was not going to cut it,
> especially as the GWC was consuming a lot of memory as we have complete
> national coverage of high resolution base-mapping data. This clashed with
> the memory allocation for GeoServer and did result in memory issues.
>
>
I'd be interested in knowing more about GWC and its memory usage...
mumble... maybe it's because GWC is loading the
tile fully in memory when serving it back? And yet... most tiles are 20K or
less, even with a thousand concurrent requests
it should not use more than 20MB of heap at a single time.
Do you have any clue as to why GWC was clashing with GeoServer own memory
allocation?

One thing that I've found beneficial when running benchmarks is growing the
young generation since most of the
objects used by GeoServer are short lived.

Oh, one final question if I may, what OS are you deploying on?

Cheers
Andrea

-- 
==
GeoServer Professional Services from the experts! Visit
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==

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
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