oops. didn't mean to take this off the list...
i'm quite skeptical that you could get the FileOutputStream method to
work with Tiles. you might be able extend the VelocityViewServlet to
do something like that though. i'm not sure what the best tactic
there would be.
as for just requesting the particular template and not using Tiles,
that should be simple. the tile being requested is just a template
like any other. the TilesRequestProcessor is just making an internal
servlet request (forward or include). all you need to do is request
the same template of the VVS directly. in other words, get your app
running, enter the URL for the template in question (or one that does
the same thing), rather than the parent template that is requesting it
as a tile ($tile.foo), and see what happens.
On 5/10/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> How would I do that?
>
> I changed the ImportSupport class to use a FileOutputStream, which writes out
> to a temp file. Then the getString() method reads that temp file. What
> happens when I do this, however, is when I get to the page with the 66000 row
> table, it sits there for about 1 minute until it runs out of memory. I'm
> thoroughly confused!
>
> -L
>
> On Tue, May 10, 2005 at 11:31:17AM -0700, Nathan Bubna wrote:
> > hmm. yeah, i don't know what to do then. without some good profiling
> > to see what is hogging the memory, it's hard to say. have you tried
> > just requesting the template in question directly with the VVS rather
> > than trying to hold it in memory as a tile?
> >
> > that might at least narrow down the area with the problem.
> >
> > On 5/10/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > > Ok I tried that, but unfortunately, it didn't do the trick =(. I
> > > verified that getResponseWriter was returning an OutputStreamWriter, but
> > > it didn't help. Maybe I'll have to change TilesTool to return an
> > > FileOutputStream that writes to a temp file.... but would that work? Oh
> > > well, anything is worth trying now!
> > >
> > > -L
> > >
> > > On Tue, May 10, 2005 at 10:44:05AM -0700, Nathan Bubna wrote:
> > > > well, maybe you can just override the VVS's getResponseWriter() method
> > > > somehow to try calling/using getOutputStream() on requests first. but
> > > > i'm not sure that will do the trick. it might, if it's just
> > > > StringWriter that is the problem and the whole of the tile's content
> > > > can be reasonably held in memory with a ByteArrayOutputStream (which
> > > > is what the ImportResponseWrapper uses to hold the tile content if
> > > > getOutputStream() is called instead of getWriter()).
> > > >
> > > > might be worth a shot at least.
> > > >
> > > > On 5/10/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > > > > Hm, thats interesting. Thanks for the info. What would you suggest
> > > > > I do? Can I easily override a method in VelocityViewServlet that
> > > > > fixes this problem?
> > > > >
> > > > > -L
> > > > >
> > > > > On Tue, May 10, 2005 at 10:32:40AM -0700, Nathan Bubna wrote:
> > > > > > if you are using the TilesTool, note that it extends ImportSupport
> > > > > > which uses a custom HttpServletResponseWrapper (an internal class
> > > > > > called ImportResponseWrapper). if the getWriter() method is called
> > > > > > on
> > > > > > that wrapper instead of getOutputStream(), then the wrapper will
> > > > > > use a
> > > > > > StringWriter to hold the content being imported. i believe the
> > > > > > VelocityViewServlet does indeed try to use getWriter() before trying
> > > > > > getOutputStream(). so import requests via the TilesTool that are
> > > > > > mapped to the VVS, will use a StringWriter.
> > > > > >
> > > > > > i'm not sure if this helps, but i seem to recall mention of the
> > > > > > TilesTool early in the thread and that use of a StringWriter seems
> > > > > > to
> > > > > > be the problem.
> > > > > >
> > > > > > On 5/10/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > > > > > > The TufteViewServlet overrides mergeTemplate only to print out
> > > > > > > some various memory statistics. I'll try playing around with
> > > > > > > setBufferSize(), but I'm close to giving up =\.
> > > > > > >
> > > > > > > -L
> > > > > > >
> > > > > > > On Tue, May 10, 2005 at 09:19:33AM +0300, Ilkka Priha wrote:
> > > > > > > > Maybe not the tiles tool, but some other filter or processor
> > > > > > > > along the
> > > > > > > > trace may have wrapped the response with a caching one. And you
> > > > > > > > have
> > > > > > > > TufteViewServlet calling mergeTemplate and actually deciding
> > > > > > > > the writer to
> > > > > > > > apply, not VelocityViewServlet...
> > > > > > > >
> > > > > > > > You can set the buffer size of the response before any output
> > > > > > > > with
> > > > > > > > response.setBufferSize() (or check its current size with
> > > > > > > > response.getBufferSize()). That should set the buffer size for
> > > > > > > > ServletOutputStream correspondingly.
> > > > > > > >
> > > > > > > > -- Ilkka
> > > > > > > >
> > > > > > > > BTW. Are browsers capable of viewing an HTML page of 100-200 MB
> > > > > > > > in size and
> > > > > > > > how long does it take to load such a monster through the net?
> > > > > > > >
> > > > > > > >
> > > > > > > > [EMAIL PROTECTED] wrote:
> > > > > > > > >The stack trace makes it seem like the problem still
> > > > > > > > >originates from the
> > > > > > > > >VelocityViewServlet, and not the TilesTool:
> > > > > > > > >
> > > > > > > > >org.apache.velocity.exception.MethodInvocationException:
> > > > > > > > >Invocation of
> > > > > > > > >method 'get' in class
> > > > > > > > >org.apache.velocity.tools.struts.TilesTool threw
> > > > > > > > >exception class java.lang.OutOfMemoryError : null
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:193)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:175)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:220)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
> > > > > > > > > at org.apache.velocity.Template.merge(Template.java:256)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > tufte.controller.tools.servlet.TufteViewServlet.mergeTemplate(TufteViewServlet.java:106)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(Unknown
> > > > > > > > > Source)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.velocity.tools.view.servlet.VelocityViewServlet.doGet(Unknown
> > > > > > > > > Source)
> > > > > > > > > at
> > > > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> > > > > > > > > at
> > > > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:432)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:356)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1097)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:302)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:278)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:341)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:272)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1187)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:433)
> > > > > > > > > at
> > > > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> > > > > > > > > at
> > > > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:261)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360)
> > > > > > > > > at
> > > > > > > > > org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:604)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:562)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:679)
> > > > > > > > > at
> > > > > > > > >
> > > > > > > > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
> > > > > > > > > at java.lang.Thread.run(Thread.java:534)
> > > > > > > > >
> > > > > > > > >So I suppose the question is, how effecient is
> > > > > > > > >ServletOutputStream? When
> > > > > > > > >I use an FileOutputStream, very little memory is required.
> > > > > > > > >
> > > > > > > > >-L
> > > > > > > > >
> > > > > > > > >On Sat, May 07, 2005 at 11:43:03AM +0300, Ilkka Priha wrote:
> > > > > > > > >
> > > > > > > > >>Maybe you are not referring to this memory eating template
> > > > > > > > >>directly from
> > > > > > > > >>VelocityServlet, but through some tool, #include, etc., which
> > > > > > > > >>uses a
> > > > > > > > >>nested StringWriter and not the servlet's OutputStreamWriter
> > > > > > > > >>directly.
> > > > > > > > >>According to your first post, the original oom exception was
> > > > > > > > >>thrown by
> > > > > > > > >>the Velocity Struts Tiles tool...
> > > > > > > > >>
> > > > > > > > >>-- Ilkka
> > > > > > > > >>
> > > > > > > > >>
> > > > > > > > >>[EMAIL PROTECTED] wrote:
> > > > > > > > >>
> > > > > > > > >>>Ok now I'm confused (suprise, suprise!). I looked at the
> > > > > > > > >>>source for
> > > > > > > > >>>VelocityServlet, and mergeTemplate has:
> > > > > > > > >>>
> > > > > > > > >>>vw = (VelocityWriter) writerPool.get();
> > > > > > > > >>>
> > > > > > > > >>>if (vw == null)
> > > > > > > > >>>{
> > > > > > > > >>> vw = new VelocityWriter(new OutputStreamWriter(output,
> > > > > > > > >>> encoding),4 *
> > > > > > > > >>> 1024, true);
> > > > > > > > >>>}
> > > > > > > > >>>else
> > > > > > > > >>>{
> > > > > > > > >>> vw.recycle(new OutputStreamWriter(output, encoding));
> > > > > > > > >>>}
> > > > > > > > >>>template.merge(context, vw);
> > > > > > > > >>>
> > > > > > > > >>>===
> > > > > > > > >>>
> > > > > > > > >>>So the VelocityServlet DOES use OutputStreamWriter already
> > > > > > > > >>>... so then
> > > > > > > > >>>why does it still utilize so much memory?
> > > > > > > > >>>
> > > > > > > > >>>-L
> > > > > > > > >>>
> > > > > > > > >>>On Fri, May 06, 2005 at 02:02:07PM -0700, [EMAIL PROTECTED]
> > > > > > > > >>>wrote:
> > > > > > > > >>>
> > > > > > > > >>>
> > > > > > > > >>>>Alright, I changed the Writer to be:
> > > > > > > > >>>>
> > > > > > > > >>>>OutputStreamWriter w = new OutputStreamWriter(new
> > > > > > > > >>>>FileOutputStream("test.html"));
> > > > > > > > >>>>
> > > > > > > > >>>>And this fixes the memory problem.
> > > > > > > > >>>>
> > > > > > > > >>>>However, my application is running Velocity as a servlet,
> > > > > > > > >>>>how should I
> > > > > > > > >>>>extend the VelocityServlet to use an OutputStreamWriter
> > > > > > > > >>>>intead of a
> > > > > > > > >>>>StringWriter? Should I post a different email thread about
> > > > > > > > >>>>this?
> > > > > > > > >>>>
> > > > > > > > >>>>-L
> > > > > > > > >>>>
> > > > > > > > >>>>On Fri, May 06, 2005 at 01:59:19PM -0700, David You wrote:
> > > > > > > > >>>>
> > > > > > > > >>>>
> > > > > > > > >>>>>Well, Open a file, use a FileWriter.
> > > > > > > > >>>>>
> > > > > > > > >>>>>David
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>-----Original Message-----
> > > > > > > > >>>>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > > > > > > > >>>>>Sent: Friday, May 06, 2005 1:48 PM
> > > > > > > > >>>>>To: Velocity Users List
> > > > > > > > >>>>>Subject: Re: OutOfMemoryException Processing Velocity
> > > > > > > > >>>>>Template
> > > > > > > > >>>>>
> > > > > > > > >>>>>I printed out the available memory before and after I call
> > > > > > > > >>>>>"mergeTemplate":
> > > > > > > > >>>>>
> > > > > > > > >>>>>Free memory before merge: 217393352
> > > > > > > > >>>>>Free memory after merge: 16271392
> > > > > > > > >>>>>
> > > > > > > > >>>>>so I would assume the StringWriter is approximately 200MB
> > > > > > > > >>>>>after the
> > > > > > > > >>>>>merge. What should I use/do instead?
> > > > > > > > >>>>>
> > > > > > > > >>>>>-Lawrence
> > > > > > > > >>>>>
> > > > > > > > >>>>>On Fri, May 06, 2005 at 01:43:50PM -0700, David You wrote:
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>Why do you use StringWriter? That is cached in the memory.
> > > > > > > > >>>>>>How big is the StringWriter after the merge?
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>David
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>-----Original Message-----
> > > > > > > > >>>>>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > > > > > > > >>>>>>Sent: Friday, May 06, 2005 1:22 PM
> > > > > > > > >>>>>>To: Velocity Users List
> > > > > > > > >>>>>>Subject: Re: OutOfMemoryException Processing Velocity
> > > > > > > > >>>>>>Template
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>Alright, I ran this little piece of code:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>public static void main( String args[] ) throws Exception
> > > > > > > > >>>>>> {
> > > > > > > > >>>>>> /* first, we init the runtime engine. Defaults are
> > > > > > > > >>>>>> fine. */
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> Velocity.init();
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> /* lets make a Context and put data into it */
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> VelocityContext context = new VelocityContext();
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> List results = ReportBean.runLargeReport();
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> context.put("List", results);
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> /* lets render a template */
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> StringWriter w = new StringWriter();
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> Velocity.mergeTemplate("/myfile.vm", context, w );
> > > > > > > > >>>>>> System.out.println(" template : " + w );
> > > > > > > > >>>>>>
> > > > > > > > >>>>>> /* lets make our own string to render */
> > > > > > > > >>>>>> }
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>results is a List of 66000 objects and requires about
> > > > > > > > >>>>>>8megs of memory.
> > > > > > > > >>>>>>The "mergeTemplate" requires at least 230 MB of memory.
> > > > > > > > >>>>>>Any
> > > > > > > > >>>>>>suggestions?
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>-L
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>On Fri, May 06, 2005 at 11:53:30AM -0700, jian chen wrote:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>Hi,
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>I guess the writer Ilkka talked about is when using
> > > > > > > > >>>>>>>Velocity as a
> > > > > > > > >>>>>>>standalone template engine.
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>Right now I don't have a good clue, could you run
> > > > > > > > >>>>>>>Velocity as a
> > > > > > > > >>>>>>>standalone template engine and render the page to see if
> > > > > > > > >>>>>>>there is a
> > > > > > > > >>>>>>>huge memory usage?
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>Cheers,
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>Jian
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>On 5/6/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>>Sorry, I'm not sure what you mean by what "kind of
> > > > > > > > >>>>>>>>writer" I'm
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>using. Where would I find out? How would I change
> > > > > > > > >>>>>>this (to maybe a
> > > > > > > > >>>>>>StringBuffer writer?)
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>Also, each column contains a String that is at most, 200
> > > > > > > > >>>>>
> > > > > > > > >>>>>characters,
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>most are closer to 10-20. There are a total of 10
> > > > > > > > >>>>>>columns.
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>Thanks.
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>-Lawrence
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>On Fri, May 06, 2005 at 09:11:13PM +0300, Ilkka Priha
> > > > > > > > >>>>>>>>wrote:
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>>What kind of writer are you using and how long are the
> > > > > > > > >>>>>>>>>items? 66
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>000 HTML
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>table rows with 5 numeric columns consumes about 32 MB
> > > > > > > > >>>>>>>>>when
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>buffered into a
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>string writer. If the items are longer, it takes much
> > > > > > > > >>>>>>>>>more
> > > > > > > > >>>>>
> > > > > > > > >>>>>memory.
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>>>>-- Ilkka
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>[EMAIL PROTECTED] wrote:
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>>I tried putting static HTML in the #foreach loop,
> > > > > > > > >>>>>>>>>>same problem.
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>Then I
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>tried setting the large list as a "local" varible:
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>#set ($localList = $List)
> > > > > > > > >>>>>>>>>>#foreach($row in $localList)
> > > > > > > > >>>>>>>>>>...
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>but that didnt help either. I don't see why
> > > > > > > > >>>>>>>>>>velocity should
> > > > > > > > >>>>>
> > > > > > > > >>>>>use
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>250+ MB
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>of memory iterating over a list ~8MB in size...
> > > > > > > > >>>>>>>>>>-L
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>On Thu, May 05, 2005 at 02:56:28PM -0700, jian chen
> > > > > > > > >>>>>>>>>>wrote:
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>>>Well, I don't have a good clue now.
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>What about do the debugging step by step, i.e., use
> > > > > > > > >>>>>>>>>>>just
> > > > > > > > >>>>>
> > > > > > > > >>>>>static
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>html
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>in your #foreach loop? Will that blow up the memory?
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>Cheers,
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>Jian
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>On 5/5/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > > > > > > > >>>>>>>>>>>wrote:
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>Thanks for the suggestion. I tried putting that,
> > > > > > > > >>>>>>>>>>>>along with
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>file.resource.loader.cache = true
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>in my velocity.properties file. Both did not
> > > > > > > > >>>>>>>>>>>>work. Any
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>other
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>suggestions?
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>Thanks!
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>-L
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>On Thu, May 05, 2005 at 02:11:28PM -0700, jian chen
> > > > > > > > >>>>>>>>>>>>wrote:
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>Hi,
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>This maybe because you haven't turned on template
> > > > > > > > >>>>>>>>>>>>>caching. I
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>had
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>similar problem before, and even if I only used
> > > > > > > > >>>>>
> > > > > > > > >>>>>evaluate(...)
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>method
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>and load the template using my own java program,
> > > > > > > > >>>>>>>>>>>>>it happened
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>when the
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>for loop is lot of iterations.
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>The bottom line for my problem is I need to turn
> > > > > > > > >>>>>>>>>>>>>on template
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>caching,
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>so, velocity will not try to cache the objects it
> > > > > > > > >>>>>>>>>>>>>parsed
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>during each
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>time of the iteration.
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>I did:
> > > > > > > > >>>>>>>>>>>>>ri.setProperty(RuntimeConstants.FILE_RESOURCE_LOADER_CACHE,
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>"true");
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>where ri is a runtime instance.
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>Will this fix your issue?
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>Cheers,
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>Jian
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>On 5/5/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> > > > > > > > >>>>>
> > > > > > > > >>>>>wrote:
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>>>>>>>>>I am getting an OutOfMemoryException:
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>org.apache.velocity.exception.MethodInvocationException:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>Invocation of
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>method 'get' in class
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>org.apache.velocity.tools.struts.TilesTool
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>threw exception class java.lang.OutOfMemoryError
> > > > > > > > >>>>>>>>>>>>>>: null
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>when I am creating a large velocity file. The vm
> > > > > > > > >>>>>>>>>>>>>>file
> > > > > > > > >>>>>
> > > > > > > > >>>>>itself
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>is
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>fairly small, but this piece of velocity is
> > > > > > > > >>>>>>>>>>>>>>causing the
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>exception:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>#foreach($row in $List)
> > > > > > > > >>>>>>>>>>>>>><tr>
> > > > > > > > >>>>>>>>>>>>>><td height="20" class="tbltxt">$!row.item1</td>
> > > > > > > > >>>>>>>>>>>>>><td class="tbltxt">$!row.item2</td>
> > > > > > > > >>>>>>>>>>>>>><td class="tbltxt">$!row.item3</td>
> > > > > > > > >>>>>>>>>>>>>><td class="tbltxt">$!row.item4</td>
> > > > > > > > >>>>>>>>>>>>>><td class="tbltxt">$!number.format('currency',
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>$!row.item5)</td>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>></tr>
> > > > > > > > >>>>>>>>>>>>>>#end
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>List is a list of relatively small objects (5-6
> > > > > > > > >>>>>>>>>>>>>>Strings, a
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>couple of
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>BigDecimals), but the List itself contains
> > > > > > > > >>>>>>>>>>>>>>approximately
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>66,000
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>entries. Unfortunately, unless I set the tomcat
> > > > > > > > >>>>>>>>>>>>>>JVM to use
> > > > > > > > >>>>>
> > > > > > > > >>>>>a
> > > > > > > > >>>>>
> > > > > > > > >>>>>
> > > > > > > > >>>>>>heap
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>size of at least 256M, this velocity template
> > > > > > > > >>>>>>>>>>>>>>throws an
> > > > > > > > >>>>>>>>>>>>>>OutOfMemoryException when it is being processed.
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>Any suggestions?
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>Thanks.
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>>>>>>-L
> > > > > > > > >>>>>>>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>>-------------------------------------------------------------------
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>--
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>To unsubscribe, e-mail:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>>For additional commands, e-mail:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>--------------------------------------------------------------------
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>-
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>To unsubscribe, e-mail:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>>>>For additional commands, e-mail:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>
> > > > > > > > >>>>>>>>>>>>To unsubscribe, e-mail:
> > > > > > > > >>>>>>
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> > > > > > > > >>>>>>>>>>>>For additional commands, e-mail:
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>>>>>To unsubscribe, e-mail:
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> > > > > > > > >>>>>>>>>>>For additional commands, e-mail:
> > > > > > > > >>>>>>
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> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>
> > > > > > > > >>>>>>>>>>To unsubscribe, e-mail:
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> > > > > > > > >>>>>>
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> > > > > > > > >>>>>>>>>>For additional commands, e-mail:
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> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>>.
> > > > > > > > >>>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>>>>
> > > > > > > > >>>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>>To unsubscribe, e-mail:
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> > > > > > > > >>>>>>
> > > > > > > > >>>>>>[EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>>>To unsubscribe, e-mail:
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> > > > > > > > >>>>>
> > > > > > > > >>>>>
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> > > > > > > > >>>>>>
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> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>---------------------------------------------------------------------
> > > > > > > > >>>>>
> > > > > > > > >>>>>
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> > > > > > > > >>>>>
> > > > > > > > >>>>>>---------------------------------------------------------------------
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> > > > > > > > >>>>>>For additional commands, e-mail: [EMAIL PROTECTED]
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>
> > > > > > > > >>>>>>---------------------------------------------------------------------
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> > > > > > > > >>>>>
> > > > > > > > >>>>>---------------------------------------------------------------------
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> > > > > > > > >>>
> > > > > > > > >>>
> > > > > > > > >>>---------------------------------------------------------------------
> > > > > > > > >>>To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > > > > > > >>>For additional commands, e-mail: [EMAIL PROTECTED]
> > > > > > > > >>>
> > > > > > > > >>>.
> > > > > > > > >>>
> > > > > > > > >>
> > > > > > > > >>
> > > > > > > > >>---------------------------------------------------------------------
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> > > > > > > > >
> > > > > > > > >---------------------------------------------------------------------
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> > > > > > > > >
> > > > > > > > >.
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > ---------------------------------------------------------------------
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> > > > > > >
> > > > > > > ---------------------------------------------------------------------
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> > > > > >
> > > > > > ---------------------------------------------------------------------
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> > > > > ---------------------------------------------------------------------
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> > > > >
> > > >
> > > > ---------------------------------------------------------------------
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> > >
>
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