On 18 October 2013 00:07, Jordan Grant <[email protected]> wrote: > At my company I've recently run into a bug in Commons-IO 2.2 using the > FileUtils.moveFile(File, File) and FileUtils.copyFile(File, File) method in > Java 5. > > The bug causes Java to hang when we attempt to move any >30 MB file across > physical devices on OpenVMS. The process hangs after OpenVMS has allocated > the appropriate file space and never writes any content to the file. The > process will not error and has to be interrupted to exit. > > Upon exit, some cache must get flushed, because exactly 31440673 bytes are > then written to the destination file, as long as the source file is larger > than that. These methods work fine on smaller files (< 30 MB) in the same > environment. I suspect that this is the result of attempting to first rename > the source file to the destination file, which is unsupported across physical > devices on OpenVMS, but the utility falls back on a copy/delete should the > rename fail. Moving small files in the same manner has never caused us an > issue. > > Is there anyone who has run into anything similar or know of any caveats > using Apache Commons in OpenVms for FileUtils? > > In the meantime, we've got a workaround in the format (with better exception > handling): > inStream = FileUtils.openInputStream(srcFile); > outStream = FileUtils.openOutputStream(destFile); > IOUtils.copy(inStream, outStream); > inStream.close() > outStream.close() > srcFile.delete() > > One weird thing is that the internal copy method in FileUtils > (doCopyFile(final File srcFile, final File destFile, final boolean > preserveFileDate)) does something very similar, so I would have expected that > my workaround would have hung as well.
It seems very odd that your code works but not Commons IO. Does copyFile fail in the same way as moveFile or is it only moveFile that fails? Do multiple versions of the source or destination files exist? Could that be the cause of the problem? Is there a version limit? BTW, renames are not allowed across devices on Unix or Windows either; that is a common OS restriction. Allowing multiple versions of files is something that is supported on OpenVMS (but not Unix/Windows) > Thank you, > Jordan Grant > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
