= FhGFS Changelog =

== Changes since 2009.03-r1 ==

This release contains various metadata performance improvements, introduces
pagecache support for clients and contains the new Admon Java frontend.

=== General ===
* improved: metadata access performance (lookup, file creation etc.)
* improved: storage directory locking mechanism (for management, metadata,
     storage servers)

=== Client ===
* new: optional use of kernel pagecache (initial implementation, will receive
     various performance improvements during the next releases)
* new: support for vanilla kernels up to version 2.6.31
* improved: handling of communication retries
* improved: communication retry configuration
* improved: concurrent file system access from multiple processes on the same
     machine (internal locking optimizations)

=== Admon (Installation & Monitoring) ===
* new: Java-based GUI front-end (designed as a full replacement for the former
     browser-based GUI)

=== Online Configuration Tool ===
* new: shows live throughput stats from servers (you might want to try using
     it in combination with the watch command)

=== Compatibility ===
* note: storage format is compatible with 2009.03-r1 release