Hi,
so I've made a few checks and the init time verification seems to be indeed
useless.
I've prepared a pull request to speed up loading a catalog with many layers
(but only one store):
https://github.com/geoserver/geoserver/pull/2008
It has two commits, the first one removes the GWC init checks taking down
the startup time from "too long for my patience, > 30m anyways" to 4 and
a half minute, the second one adds extra optimizations taking the startup
time down to around one minute.
All timings measured from a clear file system cache ("echo 3 >
/proc/sys/vm/drop_caches" under linux).
The residual startup time is surprisingly not much due to IO itself, but to
the creation and usage of millions of
ModificationProxy during startup... I did not have time to investigate
further and decided to take what I have now as a win ;-)
Cheers
Andrea
On Sun, Dec 4, 2016 at 2:50 PM, Andrea Aime <[email protected]>
wrote:
> On Sun, Dec 4, 2016 at 12:08 PM, Ian Turton <[email protected]> wrote:
>
>> Good work on tracking this down Andrea,
>>
>> The only thing I can think of is that it may be possible to create a
>> geometryless cached layer either through the REST API or by modifying the
>> table after creation.
>>
>
> Good point... the same goes for normal caching tile caching however, no
> geometry, nothing to paint, nothing to cache (besides the error you'll
> get).
> I'll need to understand why the in memory caching is different, if any,
> from a normal on disk cache to the point of needing an
> extra level of protection
>
> Cheers
> Andrea
>
> --
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==
GeoServer Professional Services from the experts! Visit
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==
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
Via di Montramito 3/A
55054 Massarosa (LU)
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*
Le informazioni contenute in questo messaggio di posta elettronica e/o
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loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.
The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
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