Hi, A few remarks about the current NGP prototype:
java.nio.ByteBuffer (FileJournal / MediumRecord) Just curious, did you run some tests, is it faster than using RandomAccessFile.read? FileChannel.map My experience with memory mapped files is: it is fast, but problematic. The biggest problem (for me) is: there is no way to unmap a file. That means it is not possible to truncate, rename, or delete a file that was once mapped. See: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4724038 Journal: "A record is never modified or removed once it has been added to a journal.". I agree, if there is a mechanism to removing old journal files. Thomas
