osync/CHANGELOG.md

SHORT FUTURE IMPROVEMENTS

• Tree functions execute piped commands (grep, awk) on local system when launched on remote slave which can cause more bandwith usage

FAR FUTURE IMPROVEMENTS

• MultiMaster support
  • Rethink of .osync_workdir/state/* files with PIDs, Host and Task Names to better identify multiple instances on the same fileset
  • Improve Master / Slave schema to Multimaster schema
  • State files should exist per replica for Multimaster schema

KNOWN ISSUES

• RC3 is tested against Linux, FreeBSD and MacOS X. More testing needed in MSYS Windows environment.
• Cannot finish sync if one replica contains a directory and the other replica contains a file named the same way (Unix doesn't allow this)

UNDER WORK

• sync test automation
• See if find command could use -delete instead of exec rm (must check compat for BSD and MacOS)
  • Portability needs find -print0 |xargs -0 -I {} command {} (tested on FreeBSD 10 so far)
• Partial download is still experimental and needs more testing.
• Remote slave helper service that rsyncs a file on master to trigger a sync whenever a file is modified on slave via inotify (should check for locks) =======

RECENT CHANGES

• 01 Avr. 2015: Osync v1.00pre
• Improved and refactored the soft deletion routine by merging conflict backup and soft deletion
  • Reworked soft deletion code to handle a case where a top level directory gets deleted even if the files contained in it are not old enough (this obviously shouldn't happen on most FS)
  • Added more logging
• Merged various fixes from onovy (http://github.com/onovy) Thanks!
  • Lowered sleep time between commands
  • Check if master and slave directories are the same
  • Check script parameters in osync.sh and osync-batch.sh
  • Run sync after timeout in --on-changes mode when no changes are detected (helps propagate slave changes)
  • Fix for locking in --on-changes mode (child should lock/unlock, master process shouldn't unlock)
  • Remote user is now optional in quicksync mode
• Replaced default script execution storage from /dev/shm to /tmp because some rootkit detection software doesn't like this
• Fixed bogus error in DEBUG for quicksync mode where no max execution time is set
• Prevent debug mode to send alert emails
• Fixed an infamous bug introduced with exclude pattern globbing preventing multiple exludes to be processed
• Fixed an issue with empty RSYNC_EXCLUDE_FILES
• Lowered default compression level for email alerts (for low end systems
• Prevent exclude pattern globbing before the pattern reaches the rsync cmd
• Fixed some missing child pids for time control to work
• Prevent creation of a sync-id less log file when DEBUG is set
• Added a sequential run batch script that can rerun failed batches
• Fixed an issue where a failed task never gets resumed after a successfull file replication phase
• Added experimental partial downloads support for rsync so big files can be resumed on slow links
• Added the ability to keep partial downloads that can be resumed on next run (usefull for big files on slow links that reach max execution time)
• Moved msys specific code to Init(Local|Remote)OSSettings
• Added a patch by igngvs to fix some issues with Rsync Exclude files
• Added a patch by Gary Clark to fix some issues with remote deletion
• Minor fixes from obackup codebase
• Added compression method fallback (xz, lzma, pigz and gzip)
• Removed unused code
• Fixed remote OS detection when a banner is used on SSH
• Added a routine that reinjects failed deletions for next run in order to prevent bringing back when deletion failed with permission issues
• Added treat dir symlink as dir parameter
• 27 May 2014: Osync 0.99 RC3
• Additionnal delete fix for *BSD and MSYS (deleted file list not created right)
• Fixed dry mode to use non dry after run treelists to create delete lists
• Added follow symlink parameter
• Minor fixes in parameter list when bandwidth parameter is used
• Added some additionnal checks for *BSD and MacOS environments
• Changed /bin/bash to /usr/bin/env bash for sanity on other systems, also check for bash presence before running
• Changed default behavior for quick sync tasks: Will try to resume failed sync tasks once
• Some code cleanup for state filenames and sync action names
• Fixed deletion propagation (again). Rsync is definitly not designed to delete a list of files / folders. Rsync replaced by rm function which downloads deletion list to remote system.
• Added path detection for exclude list file
• Added a simple init script and an install script
• Fixed an issue with MacOSX using rsync -E differently than other *nix (Thanks to Pierre Clement)
• Multislave asynchronous task support (Thanks to Ulrich Norbisrath)
  • This breaks compat with elder osync runs. Add the SYNC_ID suffix to elder state files to keep deleted file information.
• Added an easier debug setting i.e DEBUG=yes ./osync.sh (Again, thanks to Ulrich Norbisrath)
• Added hardlink preservation (Thanks to Ulrich Norbisrath)
• Added external exclusion file support (Thanks to Pierre Clement)
• Fixed some typos in doc and program itself (Thanks to Pierre Clement)
• More detailled verbose status messages
• More detailled status messages
• Fixed a bug preventing propagation of empty directory deletions
• Fixed a nasty bug preventing writing lock files on remote system as superuser
• Gzipped logs are now deleted once sent
• Fixed some typos (thanks to Pavel Kiryukhin)
• Fixed a bug with double trailing slashes in certain sceanrios
• Sync execution don't fails anymore if files vanish during execution, also vanished files get logged
• Add eventual "comm -23" replacement by "grep -F -x -v -f" to enhance compatibility with other platforms (comm is still much faster than grep, so we keep it)
• Replaced xargs rm with find -exec rm to better handle file names in soft deletion
• Fixed soft deletion not happening with relative paths
• Improved process termination behavior
• More code merging and cleanup
• Fixed a bug preventing deleted files in subdirectories propagation (Thanks to Richard Faasen for pointing that out)
• Some more function merge in sync process
• Dry mode won't create or modifiy state files anymore and will use dry-state files instead
• Improved file monitor mode
• Added possibility to daemonize osync in monitor mode
• Added monitor mode, which will launch a sync task upon file operations on master replica
• Changed conf file default format for ssh uri (old format is still compatible)
• Added ssh uri support for slave replicas
• Improved execution hooks logs
• Various bugfixes introduced with function merge
• Added basic MacOS X support (yet not fully tested)
• Merged tree list functions into one
• Added possibility to quick sync two local directories without any prior configuration
• Added time control on OS detection
• 02 Nov. 2013: Osync 0.99 RC2
• Minor improvement on operating system detection
• Improved RunLocalCommand execution hook
• Minor improvements on permission checks
• Made more portability improvements (mostly for FreeBSD, must be run with bash shell)
• Added local and remote operating system detection
  • Added forced usage of MSYS find on remote MSYS hosts
  • Updated MSYS handling
• Merged MSYS (MinGW minimal system) bash compatibility under Windows from Obackup
  • Added check for /var/log directory
  • Added check for shared memory directory
  • Added alternative way to kill child processes for other OSes and especially for MSYS (which is a very odd way)
  • Added Sendemail.exe support for windows Alerting
  • Replaced which commend by type -p, as it is more portable
  • Added support for ping.exe from windows
  • Forced usage of MSYS find instead of Windows' find.exe on master
    • Added an optionnal remote rsync executable path parameter
• Fixed an issue with CheckConnectivity3rdPartyHosts
• Added an option to stop execution if a local / remote command fails
• Improved forced quit command by killing all child processes
• Before / after commands are now ignored on dryruns
• Improved verbose output
• Fixed various typos
• Enforced CheckConnectivityRemoteHost and CheckConnectivity3rdPartyHosts checks (if one of these fails, osync is stopped)
• 18 Aug. 2013: Osync 0.99 RC1
• Added possibility to change default logfile
• Fixed a possible error upon master replica lock check
• Fixed exclude directorires with spaces in names generate errros on master replica tree functions
• Dryruns won't create after run tree lists and therefore not prevent building real run delete lists
• Softdelete and conflict backup functions are now time controlled
• Added bandwidth limit
• Update and delete functions now run rsync with --stats parameter
• Fixed LoadConfigFile function will not warn on wrong config file
• Added --no-maxtime parameter for sync big changes without enforcing execution time checks
• 03 Aug. 2013: beta 3 milestone
• Softdelete functions do now honor --dry switch
• Simplified sync delete functions
• Enhanced compatibility with different charsets in filenames
• Added CentOS 5 compatibility (comm v5.97 without --nocheck-order function replaced by sort)
• Tree functions now honor supplementary rsync arguments
• Tree functions now honor exclusion lists
• 01 Aug. 2013: beta 2 milestone
• Fixed an issue with spaces in directory trees
• Fixed an issue with recursive directory trees
• Revamped a bit code to add bash 3.2 compatibility
• 24 Jul. 2013: beta milestone
• Fixed some bad error handling in CheckMasterSlaveDirs and LockDirectories
• Added support for spaces in sync dirs and exclude lists
• Fixed false exit code if no remote slave lock present
• Added minimum disk space checks
• Added osync support in ssh_filter.sh
• Added support for sudo exec on remote slave
• Added support for alternative rsync executable
• Added support for spaces in sync directories names
• Added support for ACL and xattr
• Added --force-unlock parameter to bypass any existing locks on replicas
• Added full remote support for slave replica
• Improved error detection
• Made some changes in execution hook output
• Fixed an issue with task execution handling exit codes
• Added master and slave replicas lock functionnality
• Added rsync exclude patterns support
• Improved backup items, can now have multiple backups of the same file
• Added maximum number of resume tries before trying a fresh stateless execution
• Added possibility to resume a sync after an error
• Improved task execution time handling
• Improved SendAlert handling
• Fixed cleanup launched even if DEBUG=yes
• Added verbose rsync output
• Added --dry and --silent parameters
• Added time control
• Added master/slave conflict prevalance option
• Added soft-deleted items
• Added backup items in case of conflict

19 Jun. 2013: Project begin as Obackup fork