Problem uploading large file

[sergez]

Hi community!

I have spent much time trying to figure out the problem I get with large file uploading.
I use the UploadItem control to upload the file >300M into the database. I use datasource for the database table binding. That works perfectly for small and medium files, I've tested it for files about 45M. But for files more than 300M I get the following error in the log:

=== 2010-07-14 13:20:48,468 [l0-4] ERROR IDACall - Top-level servlet error: 
java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Unknown Source)
	at java.io.ByteArrayOutputStream.write(Unknown Source)
	at java.io.FilterOutputStream.write(Unknown Source)
	at com.isomorphic.io.ByteCountingOutputStream.write(ByteCountingOutputStream.java:45)
	at java.io.FilterOutputStream.write(Unknown Source)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:101)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:64)
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:362)
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:310)
	at com.isomorphic.servlet.ISCHttpServletRequest.parseRequest(ISCHttpServletRequest.java:217)
	at com.isomorphic.servlet.ISCHttpServletRequest.getFileParams(ISCHttpServletRequest.java:146)
	at com.isomorphic.servlet.ISCHttpServletRequest.getUploadedFile(ISCHttpServletRequest.java:246)
	at com.isomorphic.datasource.DSRequest.parseUploadedFiles(DSRequest.java:401)
	at com.isomorphic.datasource.DSRequest.<init>(DSRequest.java:352)
	at com.isomorphic.rpc.RPCManager.parseRequest(RPCManager.java:1283)
	at com.isomorphic.rpc.RPCManager.<init>(RPCManager.java:250)
	at com.isomorphic.servlet.IDACall.processRequest(IDACall.java:90)
	at com.isomorphic.servlet.IDACall.doPost(IDACall.java:54)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at com.isomorphic.servlet.BaseServlet.service(BaseServlet.java:152)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1097)
	at com.isomorphic.servlet.CompressionFilter.doFilter(CompressionFilter.java:259)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1088)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)

I've tried to increase the JVM heap size with -DXmx1024M but think that's not a good idea to increase the heap size ad infinitum. Anyway even 1024M heap size didn't help.

Possible it is not a problem of smartGWT and I should to realize my custom servlet for uploading but maybe are there any ways to solve it?

any suggests will be very much appreciated

[sergez]

The problem was solved!
The following keys combination helps:
-Xmx1024M -Xms500m -XX:MaxPermSize=256m

[kaloon]

The problem was solved!
The following keys combination helps:
-Xmx1024M -Xms500m -XX:MaxPermSize=256m

Which file to add this in ?