Hi, Thank you so much for your help!!! Turns out we are running JDK 1.4 not good enought to use the setChunkedStreamingMode method, but I was able to fix the issue by increasing the JVM heap size to 512 MB. Not sure what kind of risks I may be introducing by allocating more memory there... Thanks!
"Artamonov, Juri" <[EMAIL PROTECTED]> wrote: Hi! This is how I fixed uploading big files in Cargo. Perhaps this is what you are looking for. // When trying to upload large amount of data the internal connection buffer can become // too large and exceed the heap size, leading to a java.lang.OutOfMemoryError. // This was fixed in JDK 1.5 by introducing a new setChunkedStreamingMode() method. // As Cargo should also work with JDK versions lesser than 1.5 we use reflection to call // setChunkedStreamingMode(). If it fails, we assume we're running an older version of // the JDK. In that case the solution for the user is to increase it's heap size. // For reference, see the following discussions about this: // http://www.velocityreviews.com/forums/t149076-leaking-memory-when-writin g-to-url.html // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5026745 // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4212479 try { connection.getClass().getMethod("setChunkedStreamingMode", new Class[] {Integer.TYPE}).invoke(connection, new Object[] {new Integer(0)}); } catch (Exception e) { // We assume we're on an older JDK version, do nothing. getLogger().debug("Not calling setChunkedStreamingMode() method as JVM [" + System.getProperty("java.version") + "] doesn't support it.", getClass().getName()); } Best regards, Juri. -----Original Message----- From: Bibs L [mailto:[EMAIL PROTECTED] Sent: Thursday, April 26, 2007 2:01 AM To: [EMAIL PROTECTED]; commons-user@jakarta.apache.org Subject: java.lang.OutOfMemoryError - IOUtils.copy - When file size larger than 7 MB Hi, I am stuck with a java.lang.OutOfMemoryError when I try to copy a file of about 7 MB from a window server. I am using the org.apache.commons.io.IOUtils, IOUtils.copy(fileIn, response.getOutputStream()) with Survlet response to get the download diaglog to pop up. This is working fine when I run it locally - (download file larger than 7MB), but when I deploy the code to Shaed Environment- (download the SAME file larger than 7MB), it is throwing java.lang.OutOfMemoryError Exception. And evertime it throw the OutOfMemoryError, it creates a heapdump.phd file and a javacore File on the shared environemnt's profile location. Does anyone know what I need to do to fix this issue? The only thing I could think of is that the memory is low on the server, do we need to increase the JVM heap? What's the down side to that? Is it something I am doing wring in my Code below? I could download file size less than 7MB. A few notes about our shared envirnment: - We are running WebSphere 6.0 on Window server - It is a Virtual Machine - 4 GBs on server, but is split to 4 server instance, so we have about 1 GB - The code below is executed on WebSphere, but the file that need to be downloaded is on a different window server - shared server - "//serverName/somedir/file.doc" I would greatly appreciate any help you could offer!!!! THANKS!!!!!!!!!!!!!!!!! Here's my code: FileInputStream fileIn = null; File file = null; URL url = null; URLConnection urlConn = null; InputStream in = null; PrintWriter pw = null; try{ file = new File("\\serverPath\download\documents\test.doc"); if(file.exists() == true){ LOG.debug("file exists..."); //generate URL for file url = file.toURL(); urlConn = url.openConnection(); in = url.openStream(); fileIn = new FileInputStream(file); response.setContentType(urlConn.getContentType()); response.setHeader("Content-Disposition","inline; filename=\"" + file.getName() + "\""); LOG.debug("urlConn.getContentType() = " + urlConn.getContentType()); long startTime = System.currentTimeMillis(); IOUtils.copy(fileIn, response.getOutputStream()); response.setStatus(response.SC_OK); response.flushBuffer(); LOG.debug("Total Time Taken to download: "+(System.currentTimeMillis() - startTime) + " ms"); renderFileFlag = true; }else{ LOG.debug("file not found..."); } } catch (FileNotFoundExceptione) { LOG.error("FileNotFoundExceptione: download - " + e.getMessage(), e); } catch (IOExceptione) { LOG.error("IOException: download - " + e.getMessage(), e); } catch (Exception e) { LOG.error("Exception : download - " + e.getMessage(), e); } finally { if (facesContext != null) facesContext = null; if (fileIn != null) fileIn.close(); if (file != null) file = null; if (url != null) url = null; if (urlConn != null) urlConn = null; if (in != null) in.close(); if (pw != null) pw.close(); } --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check out new cars at Yahoo! Autos. --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos.
