[IO-266] FileUtils.copyFile() throws IOException when copying large files to a shared directory (on Windows)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.1
• Fix Version/s: 2.1

Environment

Windows 2003 Server 64-bit

• Assignee: Unassigned
• Reporter: Igor Smereka
• Created: 18/Mar/11 18:58
• Updated: 10/Oct/11 15:49
• Resolved: 09/May/11 17:29

Description

java.io.IOException: Insufficient system resources exist to complete the requested service
at sun.nio.ch.FileDispatcher.pwrite0(Native Method)
at sun.nio.ch.FileDispatcher.pwrite(Unknown Source)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(Unknown Source)
at sun.nio.ch.IOUtil.write(Unknown Source)
at sun.nio.ch.FileChannelImpl.write(Unknown Source)
at sun.nio.ch.FileChannelImpl.transferFromFileChannel(Unknown Source)
at sun.nio.ch.FileChannelImpl.transferFrom(Unknown Source)
at org.apache.commons.io.FileUtils.doCopyFile(FileUtils.java:813)
at org.apache.commons.io.FileUtils.copyFile(FileUtils.java:783)
at org.test.igor.TestFileUtils.main(TestFileUtils.java:55)

NOTE: the issue is cased by the function doCopyFile(File srcFile, File destFile, boolean preserveFileDate) using hardcoded data chunks of FIFTY_MB in the transferFrom() call.
Reducing this chunk from 50M to 31M solves the issue for my situation (32M still fails).

Here is a test program to reproduce the issue:

package org.test.igor;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

public class TestFileUtils {

public static void main(String[] args){

File src = new File("D:\\2011.1-dev\\test
test");
File dest = new File("\\\\ismerek1
Shared");

String filename = "jdk-6u19-windows-x64.exe";

File file = new File(src, filename);
File toFile = new File(dest, filename);

try

{ FileUtils.copyFile(file, toFile, true); System.out.println("Successful copy"); }

catch (IOException e1)

{ e1.printStackTrace(); }

}
}