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moosefs即将发布新的版本moosefs-1.6,一下内容为其官方网站发布的新特性描述。
The key new features/changes of MooseFS 1.6 would include: - General:
- 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
本文转自sery51CTO博客，原文链接：http://blog.51cto.com/sery/179140 ，如需转载请自行联系原作者