Carlo, Thanks for the advice. We had already enabled USE_JAI_IMAGEREAD and installed native JAI (something I should have mentioned). Attached is a getCapabilities snippet of the layer in question and here is an example URL which causes Tomcat to spiral out of memory: http://localhost:8080/geoserver/Satellite/wms?service=WMS&version=1.1.0&request=GetMap&layers=Satellite:GOES-East_NA_IR&styles=&bbox=-180.0,-90.0,180.0,90.0&width=660&height=330&srs=EPSG:404000&format=application/openlayers&time=2013-10-14T19:45:51Z
Using eclipse as a remote debugger I can examine the Query and FeatureVisitor objects being passed into ContentFeatureSource.accepts(). The visitor object contains the time, but the query object only appears to specify the layer name and a bounding box. As far as I can tell, JDBCFeatureStore attempts to "handleVisitor" which fails due to the requested time not being present in the DB. Processing returns to ContentFeatureSource which then gets a FeatureReader based solely on the query (which as noted above does not include the requested time filter). We then enter a while loop iterating over each feature returned from the query and creating a FutureTask to load each image. Once here the web request hangs while GeoServer loads each image only to result in an OutOfMemory error. FYI, we're running GeoServer 2.3.0 in Tomcat 7.0.42. Thanks, Kevin M. Weiss Software Engineer HARRIS IT Services 1408 Fort Crook Road South Bellevue, NE 68005 kweis...@harris.com ________________________________________ From: geo.ccancelli...@gmail.com [geo.ccancelli...@gmail.com] on behalf of carlo cancellieri [carlo.cancelli...@geo-solutions.it] Sent: Tuesday, October 15, 2013 3:54 AM To: Weiss, Kevin Cc: geoserver-users@lists.sourceforge.net Subject: Re: [Geoserver-users] ImageMosaic out of memory issue Kevin, first of all I would suggest to set USE_JAI_IMAGEREAD to true anyhow as far as I remember the ImageMosaic may work as following: The search is performed filtering over the DB without opening rasters at all, then the ImageMosaic may iterate over the selected granules using the ContentFeatureSource but if no time is matching in the db the content source should be empty and a blank image is produced. Could you provide the query you are using and the relevant piece of getcapabilities? Cheers, Carlo 2013/10/14 Weiss, Kevin <kweis...@harris.com<mailto:kweis...@harris.com>> Hello All, I've been troubleshooting a Java heap space error with temporal ImageMosaic datastores. We originally followed the tutorials here (http://docs.geoserver.org/latest/en/user/tutorials/imagemosaic_timeseries/imagemosaic_timeseries.html) to setup a temporally enabled raster data store. After that we designed a system which would download new imagery and update the underlying DB table. The system works as expected until a request for an invalid timestamp is made. It appears that the GeoServer/GeoTools code begins to loop over each image in the directory loading it into memory. When we only had 10-15 images in the directory this was unnoticeable, however now that our collection has grown to 1500+ images it quickly runs us out of heap space. The code in question appears to be in ContentFeatureSource.java. In the accepts(Query, FeatureVisitor, ProgressListener) method I found the following comment: "//subclass could not handle, resort to manually walkign through" This comment is just above the while loop that iterates over all the imagery in the directory which makes me wonder if this is the intended behavior. Has anyone else experienced this issue? Am I configuring something incorrectly? I realize the simple solution is to not make invalid temporal requests, but I don't control the external clients and this seems to be a pretty big flaw in my opinion. No external entity should be able to take down my server with a simple request. Thanks, Kevin M. Weiss Software Engineer HARRIS IT Services ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net<mailto:Geoserver-users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/geoserver-users -- == Our support, Your Success! Visit http://opensdi.geo-solutions.it for more information. == Dott. Carlo Cancellieri @cancellieric Software Engineer GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313<tel:%2B39%200584%20962313> mobile: +39 3371094494<tel:%2B39%203371094494> fax: +39 0584 1660272<tel:%2B39%200584%201660272> http://www.geo-solutions.it<http://www.geo-solutions.it/> http://twitter.com/geosolutions_it ------------------------------------------------------- ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
