NEWS for rsync 2.6.1 (UNRELEASED)
-Protocol: 27 (unchanged)
+Protocol: 28 (changed)
Changes since 2.6.0:
ENHANCEMENTS:
+ * Lower memory use and more optimal transfer of data over
+ the socket (see the INTERNAL section for details).
+
* The RSYNC_PROXY environment variable can now contain a
"USER:PASS@" prefix before the "HOST:PORT" information.
(Bardur Arantsson)
+ * The --progress output now mentions how far along in the
+ transfer we are, including both a count of files transferred
+ and a percentage of the total file-count that we've processed.
+ It also shows better current-rate-of-transfer and remaining-
+ transfer-time values.
+
+ * The configure script now accepts --with-rsyncd-conf=PATH
+ to override the default value of the /etc/rsyncd.conf file.
+
+ * Added a couple extra diffs in the "patches" dir, removed the
+ ones that got applied, and rebuilt the rest.
+
BUG FIXES:
+ * When -x (--one-file-system) is combined with -L (--copy-links)
+ or --copy-unsafe-links, no symlinked files are skipped, even
+ if the referant file is on a different filesystem.
+
* The --link-dest code now works properly for a non-root user
- when the UIDs of the source and destination differ and -u was
- specified, and when the group of the source can't be used on
- the destination and -g was specified. (Wayne Davison)
+ when (1) the UIDs of the source and destination differ and -o
+ was specified, or (2) when the group of the source can't be
+ used on the destination and -g was specified.
* Fixed a bug in the handling of -H (hard-links) that might
cause the expanded PATH/NAME value of the current item to
get overwritten (due to an expanded-name caching bug).
- (Wayne Davison)
- * Keep per-file track of the sending of literal data with
- --partial so that an interrupted transfer doesn't keep a
- shorter temp file when no new data has been transfered over
- the wire.
+ * We now reset the "new data has been sent" flag at the start
+ of each file we send. This makes sure that an interrupted
+ transfer with the --partial option set doesn't keep a shorter
+ temp file than the current basis file when no new data has been
+ transfered over the wire for that file.
* Fixed a byte-order problem in --batch-mode on big-endian
machines. (Jay Fenlason)
- INTERNAL:
+ * Fixed configure bug when running "./configure --disable-ipv6".
- * Most of the I/O is now buffered, which results in a pretty
- large speedup when running under MS Windows. (Craig Barratt)
+ * Fixed "make test" bug when build dir is not the source dir.
- * Optimizations to the name-handling/comparing code have made
- some significant reductions in user CPU time for large file
- sets. (Wayne Davison)
+ * When using --cvs-exclude, the exclude items we get from a
+ directory's .cvsignore file once again only affect that one
+ directory (and not all following directories too).
- * Some variable-type cleanup that makes the code more consistent.
- (Wayne Davison)
-
-\f
-NEWS for rsync 2.6.0 (1 Jan 2004)
-Protocol: 27 (changed)
-Changes since 2.5.7:
-
- ENHANCEMENTS:
+ * When specifying the USER@HOST: prefix for a file, the USER
+ part can now contain an '@', if needed (i.e. the last '@'
+ is used to find the HOST, not the first).
- * "ssh" is now the default remote shell for rsync. If you want to
- change this, configure like this: "./configure --with-rsh=rsh".
+ * Fixed some bugs in the handling of group IDs for non-root
+ users: (1) It properly handles a group that the sender didn't
+ have a name for (it would previously skip changing the group
+ on any files in that group). (2) If --numeric-ids is used,
+ rsync no longer attempts to set groups that the user doesn't
+ have the permission to set.
- * Added --files-from, --no-relative, --no-implied-dirs, and --from0.
- Note that --from0 affects the line-ending character for all the
- files read by the --*-from options. (Wayne Davison)
+ * Fixed the "refuse options" setting in the rsyncd.conf file.
- * Length of csum2 is now per-file starting with protocol version
- 27. (J.W. Schultz)
+ * Improved the -x (--one-file-system) flag's handling of any
+ mount-point directories we encounter. It is both more optimal
+ (in that it no longer does a useless scan of the contents of
+ the mount-point dirs) and also fixes a bug where a remaped
+ mount of the original filesystem could get discovered on a
+ disk we should be ignoring.
- * Per-file dynamic block size is now sqrt(file length). The
- per-file checksum size is determined according to an algorithm
- provided by Donovan Baarda which reduces the probability of rsync
- algorithm corrupting data and falling back using the whole md4
- checksums. (J.W. Schultz, Donovan Baarda)
+ * Rsync no longer discards a double-slash at the start of a filename
+ when trying to open the file. It also no longer constructs names
+ that start with a double slash (unless the user supplied them).
- * The --stats option no longer includes the (debug) malloc summary
- unless the verbose option was specified at least twice.
-
- * Added a new error/warning code for when files vanish from the
- sending side. Made vanished source files not interfere with the
- file-deletion pass when --delete-after was specified.
-
- * Various trailing-info sections are now preceded by a newline.
-
- BUG FIXES:
+ * Fixed compilation problem on Tru64 Unix (having to do with
+ sockaddr.sa_len and sockaddr.sin_len).
- * Fixed several exclude/include matching bugs when using wild-cards.
- This has a several user-visible effects, all of which make the
- matching more consistent and intuitive. This should hopefully not
- cause anyone problems since it makes the matching work more like
- what people are expecting. (Wayne Davison)
+ * Fixed a compatibility problem interacting with older rsync
+ versions that might send us an empty suffix without telling us
+ about the backup-dir.
- - A pattern with a "**" no longer causes a "*" to match slashes.
- For example, with "/*/foo/**", "foo" must be 2 levels deep.
- [If your string has BOTH "*" and "**" wildcards, changing the
- "*" wildcards to "**" will provide the old behavior in all
- versions.]
+ * The "hosts allow" option for a daemon-over-remote-shell
+ process now has improved support for IPv6 addresses and a fix
+ for systems that have a length field in their socket structs.
- - "**/foo" now matches at the base of the transfer (like /foo
- does). [Use "/**/foo" to get the old behavior in all versions.]
-
- - A non-anchored wildcard term floats to match beyond the base of
- the transfer. E.g. "CVS/R*" matches at the end of the path,
- just like the non-wildcard term "CVS/Root" does. [Use "/CVS/R*"
- to get the old behavior in all versions.]
-
- - Including a "**" in the match term causes it to be matched
- against the entire path, not just the name portion, even if
- there aren't any interior slashes in the term. E.g. "foo**bar"
- would exclude "/path/foo-bar" (just like before) as well as
- "/foo-path/baz-bar" (unlike before). [Use "foo*bar" to get the
- old behavior in all versions.]
-
- * The exclude list specified in the daemon's config file is now
- properly applied to the pulled items no matter how deep the
- user's file-args are in the source tree. (Wayne Davison)
-
- * For protocol version >= 27, mdfour_tail() is called when the
- block size (including checksum_seed) is a multiple of 64.
- Previously it was not called, giving the wrong MD4 checksum.
- (Craig Barratt)
-
- * For protocol version >= 27, a 64 bit bit counter is used in
- mdfour.c as required by the RFC. Previously only a 32 bit bit
- counter was used, causing incorrect MD4 file checksums for
- file sizes >= 512MB - 4. (Craig Barratt)
-
- * Fixed a crash bug when interacting with older rsync versions and
- multiple files of the same name are destined for the same dir.
- (Wayne Davison)
-
- * Keep tmp names from overflowing MAXPATHLEN.
-
- * Make --link-dest honor the absence of -p, -o, and -g.
-
- * Made rsync treat a trailing slash in the destination in a more
- consistent manner.
-
- * Fixed file I/O error detection. (John Van Essen)
+ INTERNAL:
- * Fixed bogus "malformed address {hostname}" message in rsyncd log
- when checking IP address against hostnames from "hosts allow"
- and "hosts deny" parameters in config file.
+ * Most of the I/O is now buffered, which results in a pretty
+ large speedup when running under MS Windows. (Craig Barratt)
- * Print heap statistics when verbose >= 2 instead of when >= 1.
+ * Optimizations to the name-handling/comparing code have made
+ some significant reductions in user-CPU time for large file
+ sets.
- * Fixed a compression (-z) bug when syncing a mostly-matching file
- that contains already-compressed data. (Yasuoka Masahiko and
- Wayne Davison)
+ * Some variable-type cleanup that makes the code more consistent.
- * Fixed a bug in the --backup code that could cause deleted files
- to not get backed up.
+ * Reduced memory requirements of hard link preservation.
+ (J.W. Schultz)
- * When the backup code makes new directories, create them with mode
- 0700 instead of 0755 (since the directory permissions in the
- backup tree are not yet copied from the main tree).
+ * Implemented a new algorithm for hard-link handling that speeds
+ up the code significantly. (J.W. Schultz and Wayne Davison)
- * Call setgroups() in a more portable manner.
+ * The --hard-link option now uses the first existing file in the
+ group of linked files as the basis for the transfer. This
+ prevents the sub-optimal transfer of a file's data when a new
+ hardlink is added on the sending side and it sorts alphabetically
+ earlier in the list than the files that are already present on the
+ receiving side.
- * Improved file-related error messages to better indicate exactly
- what pathname failed. (Wayne Davison)
+ * Dropped support for protocol versions less than 20
+ (2.3.0 released 15 Mar 1999) and activated warnings for
+ protocols less than 25 (2.5.0 released 23 Aug 2001)
+ (Wayne Davison and J.W. Schultz, severally)
- * Fixed some bugs in the handling of --delete and --exclude when
- using the --relative (-R) option. (Wayne Davison)
+ * More optimal data transmission for --hard-links (protocol 28).
- * Fixed bug that prevented regular files from replacing
- special files and caused a directory in --link-dest or
- --compare-dest to block the creation of a file with the
- same path. A directory still cannot be replaced by a
- regular file unless --delete specified. (J.W. Schultz)
+ * More optimal data transmission for --checksum (protocol 28).
- * Detect and report when open or opendir succeed but read and
- readdir fail caused by network filesystem issues and truncated
- files. (David Norwood, Michael Brown, J.W. Schultz)
+ * Less memory is used when --checksum is specified.
- * Added a fix that should give ssh time to restore the tty settings
- if the user presses Ctrl-C at an ssh password prompt.
+ * Less memory is used in the file list (a per-file savings).
- INTERNAL:
+ * The generator is now better about not modifying the file list
+ during the transfer in order to avoid a copy-on-write memory
+ bifurcation (on systems where fork() uses shared memory).
+ Previously, rsync's shared memory would slowly become unshared,
+ resulting in real memory usage nearly doubling on the receiving
+ side by the end of the transfer. Now, as long as permissions
+ are being preserved, the shared memory should remain that way
+ for the entire transfer.
- * Eliminated vestigial support for old versions that we stopped
- supporting. (J.W. Schultz)
+ * Changed hardlink info and file_struct + strings to use
+ allocation pools. This reduces memory use for large
+ filesets and permits freeing memory to the OS. (J.W. Schultz)
- * Simplified some of the option-parsing code. (Wayne Davison)
+ * The 2 pipes used between the receiver and generator processes
+ (which are forked on the same machine) were reduced to 1 pipe
+ and the protocol improved so that (1) it is now impossible to
+ have the "redo" pipe fill up and hang rsync, and (2) trailing
+ messages from the receiver don't get lost on their way through
+ the generator over to the sender (the latter mainly affected
+ hard-link messages and verbose --stats output).
- * Some cleanup made to the exclude code, as well as some new
- defines added to enhance readability. (Wayne Davison)
+ * The reading & writing of the file-list in batch-mode is now
+ handled by the same code that sends & receives the list over
+ the wire. This makes it much easier to maintain.
- * Changed the protocol-version code so that it can interact at a
- lower protocol level than the maximum supported by both sides.
- Added an undocumented option, --protocol=N, to force the value
- we advertise to the other side (primarily for testing purposes).
- (Wayne Davison)
+ * Improved the internal uid/gid code to be more portable and
+ a little more optimized.