On Mon, May 28, 2012 at 7:57 PM, Justin Deoliveira <[email protected]> wrote:
> Given that I have not heard anyone complain about this I feel stating that
> it makes the GUI "unusable" is an overstatement. That code has been in place
> for years. Although admittedly i don't monitor the user list, irc, and jira
> as closely as others.
I had to go through 25 shapefile layers to do manual changes on some HTTP
headers setup, each save took its own 5 seconds, during which the GUI
could not be used in other tabs also due to the lock protecting the GUI
from concurrent changes (which means you cannot do anything in another
tab either).
I'm quite sensitive to slowdowns and delay, so this makes the GUI unusable
for me (personal feeling, I understand it).
> Well i am happy to try to help come up with the patch. I don't know the
> referencing system very well but my idea was just a simple fixed sized
> thread safe set that kept recently looked up CRS objects around. Then in
> CRS.lookupEpsgCode when the fast path fails scan through the second level
> cache and do the comparison. If that fails fall back to the full scan. If
> that sound sane I will proceed. One question i have is whether the second
> level cache should be used when fullScan = false?
Actually, why not go through the cache first?
I was actually wondering if the cache should not be better placed in
the GeoServer own configuration subsystem, and automatically filled
on startup with the associations that the admin already made in the
existing config, that would kill also the first lookup most of the time
Ah, another bit, the cache in GT would need to be wiped out when the admin
does a reset/reload anyways as part of the CRS.reset("all") call, one
in GeoServer
may not have to abide to the same issues, or at least could be refilled by the
existing associations during the reload).
Cheers
Andrea
--
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 962313
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http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
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http://twitter.com/geowolf
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