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We are pleased to announce the latest stable release of MooseFS 1.6.10.  You can download it from  webpage.

We encourage you to subscribe to moosefs-users mailing list at  so that all of you can share your experience and get support from us.

The branch 1.6.x was rewritten from scratch. Please find UPGRADE file and refer to the notes on upgrade process from 1.5.x branch.

In 1.6.x you would find lots of new features. The most important are:

* MooseFS 1.6.10 (2009-12-09)

 - fixed errors introduced in 1.6.9  - added 'reload' command to master  - split chunk counters into 'all' and 'regular' (new approach to disks    removal - since this version chunks on 'marked for removal' disks are not    deleted)

* MooseFS 1.6.9 (2009-11-24)

 - updated manpages  - added support for mlockall (prevent from swapping)  - redesigned charts module  - redesigned locking mechanizm (daemons)  - added HDD I/O stats  - removing unfinished jobs from queue on socket close  - added 'cache file' flag

* MooseFS 1.6.8 (2009-10-26)

 - added options to set nice level and number of I/O retries in mfsmount

* MooseFS 1.6.7 (2009-10-05)

 - fixed error: damaged disk caused SIGSEGV in mfschunkserver

* MooseFS 1.6.6 (2009-10-02)

 - fixed errors introduced in 1.6.5  - changed directory structure in CS (from 16 subfolders to 256 subfolders)

* MooseFS 1.6.5 (2009-09-23)

 - fixed some performance issues  - added new module "mfsmetalogger"

* MooseFS 1.6.4 (2009-08-25)

 - rewrite mfs to use poll instead of select  - fixed some errors in new write module  - limit cache usage by inode in write module

* MooseFS 1.6.3 (2009-08-24)

 - reduced version increasing  - increased open files limit in chunkserver  - decreased time window in damage disk detection

* MooseFS 1.6.2 (2009-08-19)

 - fixed "race" in writedata module  - increased session timeout in mfsmaster for new sessions

* MooseFS 1.6.1 (2009-08-14)

 - Added 'mapall' option to exports  - Added flags 'noattrcache' and 'noentrycache'  - Rewritten "Writedata" module in mfsmount  - Added source (read) limit to replications  - Prefer localhost during some operations (reduce network usage)

* MooseFS 1.6.0 (not released - only available in public repository)

 Common:  - Removed duplicate source files.  - Strip whitespace at the end of configuration file lines.

 Chunkserver:  - Rewritten in multi-threaded model.  - Added periodical chunk testing functionality (HDD_TEST_FREQ option).  - New -v option (prints version and exits).

 Master:  - Added "noowner" objects flag (causes objects to belong to current user).  - Maintaining `mfsdirinfo` data online, so it doesn't need to be calculated    on every request.  - Filesystem access authorization system (NFS-like mfsexports.cfg file,    REJECT_OLD_CLIENTS option) with ro/rw, password and maproot    functionality.  - New -v option (prints version and exits).

 Mount:  - Rewritten options parsing in mount-like way, making possible to use    standard FUSE mount utilities (see mfsmount(8) manual for new syntax).    Note: old syntax is no longer accepted and mountpoint is mandatory now    (there is no default).  - Updated for FUSE 2.6+.  - Added password, file data cache, attribute cache and entry cache options.    By default attribute cache and directory entry cache are enabled,    file data cache and file entry cache are disabled.  - opendir() no longer reads directory contents - it's done on first    readdir() now; fixes "rm -r" on recent Linux/glibc/coreutils combo.  - Fixed mtime setting just before close() (by flushing file on mtime    change); fixes mtime preserving on "cp -p".  - Added statistics accessible through MFSROOT/.stats pseudo-file.  - Changed master access method for mfstools (direct .master pseudo-file    replaced by .masterinfo redirection); fixes possible mfstools race    condition and allows to use mfstools on read-only filesystem.

 Tools:  - Units cleanup in values display (exact values, IEC-60027/binary prefixes,    SI/decimal prefixes); new options: -n, -h, -H and MFSHRFORMAT environment    variable - refer to mfstools(8) manual for details).  - mfsrgetgoal, mfsrsetgoal, mfsrgettrashtime, mfsrsettrashtime have been    deprecated in favour of new "-r" option for mfsgetgoal, mfssetgoal,    mfsgettrashtime, mfssettrashtime tools.  - mfssnapshot utility replaced by mfsappendchunks (direct descendant of    old utility) and mfsmakesnapshot (which creates "real" recursive    snapshots and behaves similar to "cp -r").  - New mfsfilerepair utility, which allows partial recovery of file with    some missing or broken chunks.

 CGI scripts:  - First public version of CGI scripts allowing to monitor MFS installation    from WWW browser.

 

Kind regards Michal Borychowski  MooseFS Support Manager _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Gemius S.A. ul. Woloska 7, 02-672 Warszawa Budynek MARS, klatka D Tel.: +4822 874-41-00 Fax : +4822 874-41-01