divijvaidya commented on code in PR #12331: URL: https://github.com/apache/kafka/pull/12331#discussion_r903841247
########## clients/src/main/java/org/apache/kafka/common/record/FileRecords.java: ########## @@ -461,14 +461,15 @@ private static FileChannel openChannel(File file, int initFileSize, boolean preallocate) throws IOException { if (mutable) { - if (fileAlreadyExists || !preallocate) { - return FileChannel.open(file.toPath(), StandardOpenOption.CREATE, StandardOpenOption.READ, - StandardOpenOption.WRITE); - } else { - RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw"); - randomAccessFile.setLength(initFileSize); - return randomAccessFile.getChannel(); + if (preallocate && !fileAlreadyExists) { + try (RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw")) { Review Comment: You don't necessarily need `RandomAccessFile.setLength()` here. Since NIO.2 in JDK 8, you can use `SeekableByteChannel` which should fix your problem with Windows. ``` final OpenOption[] options = { StandardOpenOption.WRITE, StandardOpenOption.CREATE_NEW , StandardOpenOption.SPARSE }; final Path hugeFile = Paths.get("hugefile.txt"); try (final SeekableByteChannel channel = Files.newByteChannel(hugeFile, options);) { channel.position(HUGE_FILE_SIZE); channel.write(buf); } ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org