On Sat, May 14, 2011 at 1:03 AM, Justin Deoliveira <[email protected]> wrote: > Hi folks, > I have run into a situation in which a system is exhausting the limit on the > number of open files per process and I want to confirm my understanding of > why it is happening. Yes, the system is configured with the default on linux > which is 1024 which is way too little for geoserver, and yes I do intend to > up the limit but I wanted to bring up the issue for discussion anyways in > case there is a better solution. > For reference the system configuration is linux, running tomcat with a max > heap of 2G, again with the default of 1024 open file handles per process. I > have a layer that is a geotiff and i more or less just bombard it with > requests. While I do that I watch the output of lsof and grep for that file. > And slowly the number of file handles open for that file grows until the > system starts to complain about too many open files and requests start > failing. > Looking at how file streams are managed it looks like the stream is > opened/created when the jai imageread operation is created. And then the > stream is not closed until its finalizer is invoked. Is my understanding > correct?
Well, sort of. In theory the stream should get closed once someone disposes the jai operation chain that uses the image read operation. GeoServer does this after each request, is the application you're talking about custom built on top of GeoTools, but not GeoServer? 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 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ------------------------------------------------------- ------------------------------------------------------------------------------ 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 _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
