Category Archives: Uncategorized

This version of lessfs passes all the fsx-linux tests. It has been confirmed that this release fixes the problems that people where reporting with rsync.

Open discussion about data deduplication for Linux in general. Would you like a data deduplicating blockdevice in userspace or in the kernel? Would you prefer lessfs-2.0 with replication and snapshots? Your opinion counts!

This release fixes a major bug in the truncate code. This bug causes lessfs to crash with ccrypt and rsync -inline.

Lessfs-0.8.2 is mostly a bugfix release. Fixes a bug that causes lessfsck and mklessfs to segfault when compiled with encryption support and encryption disabled in the config. Fixes a bug that causes lessfs to segfault on umount when compiled with … Continue reading →

This release fixes a bug that causes mklessfs to segfault when DEBUG is not set in the configuration file. This release add the program lessfsck. lessfsck can be used  to check, optimize and repair a lessfs filesystem. lessfsck only supports … Continue reading →

Change log: Fixes a possible segfault when lessfs is used with lzo compression. Fixes a problem when compiling lessfs without encryption on a system without openssl-devel. Enhances the logging facility. Performance has improved on higher latency storage like drbd or … Continue reading →

Fixes a segfault on free after unmounting lessfs without encryption support. Fixes a problem that could lead to a deadlock when using file_io with NFS. A performance improvement, changed a mutex lock for a spinlock, to improve data throughput.

This version of lessfs introduces a new hash named Blue Midnight Whish. This is a very fast hash that increases lessfs performance significantly. The implementation makes it easy to use any of the hashes from the NIST hash competition. BMW … Continue reading →

Lessfs-0.7.2 fixes a typo in lib_tc.c that could potentially lead to data corruption. Please upgrade a.s.a.p. when you use lessfs-0.7.1 with the tokyocabinet data store. Older releases are not effected. Lessfs-0.7.2 also contains a minor performance enhancement.

This new release improves performance in general. It adds a new storage method for the data that is stored. Previous lessfs versions would store the data in tokyocabinet. The new file_io backend allows to store the data in a regular … Continue reading →