*Hi Chris,*
Thanks for suggestions and webgis application feedback on *vote.mapview.in*.
On SLD of this webapplication, we did lot of work to provide beautiful maps
view to indian citizens/ general public. After this application launch,
observed map serving performance of geoserver and have decided to continue
with Geoserver forever for all applications which are enterprise
level/country based data serving applications. but still lot of study and
observation is on the way.
currently we have data for one state of India (Kerala), we are planning to
for entire India soon. That is the reason we are taking experts (in my
view, experts will be actual users who are encountering problems everyday
and resolving by their own knowledge and with help of similar kind of users
knowledge base, one of the supprt people/forums is *
[email protected]*).
As you suggested, we are already using GWC, internally for many applications
which are in development and accessing layers with* IP address:Port
number/geowebcache/service/wms*. When we are seeding layers, if it take much
time, if we cancel operation, observed that geoserver referring to
geowebcache is also going down. need to study a lot on this process. once it
is done, we can implement GWC for all applications launched for public.
*Hi Andrea,*
As usual, Thankyou for useful insights to increase performance& reliability,
applications availability. Could you please guide/advise me on below points.
Just followed the link and got an exception stating that rendering the map
would have used 80MB and the limit was 25MB.
*
*
Yes, it was happening sometime (How can we manage this kind of memory
issues). From default 16 MB, i have increased to 25 MB. Is it really more
than 25 MB of wms image that has been rendering in web page ? how can be the
maximum size...
Geoserver is serving layers for other applications also, but there are no
satellite images/rasters. The total GIS layers on disk space may be around
35 MB maximum, stored in oracle tables( i have conveyed only map data and
there are other tables for election results and candidates/constituency
profiles which are not GIS layers).
Wow, you must have used a ton of FeatureTypeStyle declarations in your
style, I was just using a 15" notebook, the request couldn't have been
larger than 900*900.
Could you please explain, how to implement this?
Doing a style with a ton of FeatureTypeStyle elements will require either
a lot of passes over the data or (what GS does) allocating many rendering
surfaces in parallel. Better rework the SLD to use a small number of
FeatureTypeStyle in it: consider this, how many Z levels do you actually
need for a specific layer? That's the number of FeatureTypeStyle
elements you actually need.
Its true that Road SLD xml file is having more than 3000 lines description(i
need to redefine it, will do asap), we have a large road dataset, which i
will devide into national highway, state highway, DMR (district major
roads), streets (5 types). I will add it as group layer, and access in web
applications.
Thanks,
Hari.
On Fri, May 13, 2011 at 12:08 AM, Chris Holmes <[email protected]> wrote:
> Hey Hari, vote.mapview.in looks cool. Have you considered using
> GeoWebCache for it? Looks like you're doing large, single tile requests.
> If you stick GWC in front of it then you could put a lot less of a load on
> the server, since most places that people look at would get cached.
>
> C
>
> On Wed, May 11, 2011 at 7:52 AM, Harikumar Reddy <[email protected]>wrote:
>
>> Hi Ben,
>>
>> Below i am providing answers for your questions (apart from that i have
>> some doubts also written).
>>
>> Did you observed any limitations (*known or unknown limitations* like
>> howmuch maximum data it can support or maximum number of
>> workspaces/datastore we can able to create (raster& vectors)/how many gis
>> layers can be configured in one geoserver) for geoserver version 2.0.2 &
>> other newer versions ?
>>
>> We have deployed a webgis application a month before (vote.mapview.in),
>> which was working very fine and didnt have any issues till now with
>> Geoserver (but it has very less gis data layers).
>>
>> Please find below required information to analyse problem.
>>
>> - What Java implementation (and version) are you using? What JVM options?
>>
>> *"java version "1.6.0_23"*
>> *Java(TM) SE Runtime Environment (build 1.6.0_23-b05)*
>> *Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)"*
>>
>> - What servlet container? Tomcat?
>>
>> *We are using Tomcat 6 servlet container in spring source tc server
>> cloud environment*
>>
>>
>> - Are you using Apache HTTPD in front of Tomcat?
>>
>> *Not using Apache HTTPD infront of Tomcat.*
>>
>>
>> - What are the symptoms of "going down"? Do you get any response? From
>> Apache? Tomcat?
>>
>> *Geoserver log file piled up and occupied 250 MB disk space.* *So i have
>> carefully extracted log of may 11th for geoserver (ver 2.0.1) and sending as
>> an attachment.*
>>
>> - Do you get anything in the logs (Apache, Tomcat or GeoServer)?
>>
>> *Yes, attached logs of tomcat & geoserver.*
>>
>>
>> - Do you see heap errors in the logs?
>> *Heap we have increased, so now a days we are not getting.*
>>
>>
>> - Do you get any mysterious database errors (ORA-something) or hangs?
>>
>> *Not exactly ORA-xxxxx errors, but i suspect db related issues might also
>> happen.
>> *
>>
>> - Is there a firewall between GeoServer and Oracle? from the app-schema
>> manual but relevant to all users:
>> <http://docs.geoserver.org/latest/en/user/data/app-schema/data-stores.html#jndi>
>> *There is no firewall between Geoserver & Oracle, because of testing &
>> connection problems, removed firewall as of now.*
>>
>>
>> - Have you tried turning on VERBOSE logging in GeoServer to diagnose the
>> problem?
>>
>> *Yes, VERBOSE logging has been already set.* *It is become easier to
>> analyse logs after this setting change.*
>>
>>
>> Thanks,
>> Hari.
>>
>>
>> On Wed, May 11, 2011 at 1:14 PM, Harikumar Reddy <[email protected]>wrote:
>>
>>> Hi Ben Caradoc-Davies, christian.mueller
>>>
>>> Thanks for the very quick responses.
>>>
>>> As per my observations, Most of the times, in Geoserver errors of heap
>>> memory present. I didnot check logs of the tomcat (we are using
>>> tomcat 6 & tcserver).
>>>
>>> I will provide required details & logs by contacting system admin team.
>>>
>>> Thankyou verymuch.
>>>
>>> Hari.
>>>
>>>
>>> On Wed, May 11, 2011 at 12:04 PM, <[email protected]> wrote:
>>>
>>>> Can you check if you have http sessions. You should have not.
>>>>
>>>> Look here
>>>> http://jira.codehaus.org/browse/GEOS-4477
>>>>
>>>> This was fixed with geoserver 2.1 RC5
>>>>
>>>>
>>>> Quoting Harikumar Reddy <[email protected]>:
>>>>
>>>> Hi All,
>>>>>
>>>>> We are using Geoserver 2.0.2 (recently migrated from 2.0.1) and using
>>>>> Geoserver since version 1.7. we are happy by its map rendering results
>>>>> but
>>>>> it is going down very often. we are restarting geoserver at least once
>>>>> in
>>>>> two days, after that it works for 24 hours very well. We are using
>>>>> oracle
>>>>> spatial 11g database as datastore for gis layers (vector & raster). It
>>>>> is
>>>>> actually for one state we are using and facing these problems. Any
>>>>> memory
>>>>> leakage or any other configurations to be done. The total data is
>>>>> around 80
>>>>> GB ( 78 gb of satellite images & 2 gb gis layers)
>>>>>
>>>>> I am sorry for asking very basic questions of memory management &
>>>>> geoserver
>>>>> connections related to systems side as i am pure GIS professional.
>>>>>
>>>>> Now we are going to implement project for entire country (India) with
>>>>> 25 gis
>>>>> layers and satellite images for 100 cities. If we need to restart
>>>>> Geoserver
>>>>> once in two days may not be good idea. Any special
>>>>> configarations/settings
>>>>> is required (hardware side, software side). The production Geoserver
>>>>> will be
>>>>> having the given below linux environment.
>>>>>
>>>>> Linux CentOS version 5
>>>>> Geoserver version 2.0.2
>>>>> Open layers 2.9
>>>>> Oracle spatial 11 g R2
>>>>>
>>>>> we are also thinking of alterante map servers because this kind of
>>>>> issues.
>>>>> If anyone knows, please suggest. For country level applications, which
>>>>> will
>>>>> be having an approximate user base of 50,000 day can be handled well by
>>>>> geoserver for the vector layers & satellite images ?
>>>>>
>>>>> I have seen many posts by andrea & others, guiding users with good
>>>>> insights.
>>>>>
>>>>> Many Many Thanks in advance for any guidance, suggestions & help.
>>>>>
>>>>> Regards,
>>>>> Hari.
>>>>>
>>>>>
>>>>
>>>>
>>>> ----------------------------------------------------------------
>>>> This message was sent using IMP, the Internet Messaging Program.
>>>>
>>>>
>>>>
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> Achieve unprecedented app performance and reliability
>> What every C/C++ and Fortran developer should know.
>> Learn how Intel has extended the reach of its next-generation tools
>> to help boost performance applications - inlcuding clusters.
>> http://p.sf.net/sfu/intel-dev2devmay
>> _______________________________________________
>> Geoserver-users mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>>
>>
>
------------------------------------------------------------------------------
Achieve unprecedented app performance and reliability
What every C/C++ and Fortran developer should know.
Learn how Intel has extended the reach of its next-generation tools
to help boost performance applications - inlcuding clusters.
http://p.sf.net/sfu/intel-dev2devmay
_______________________________________________
Geoserver-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-users
