Great news! Especially the improved read performance and compactions are great!
Thanks, Thibaut On Tue, Oct 18, 2011 at 2:11 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > Thanks for the help, everyone! This is a great milestone for Cassandra. > > On Tue, Oct 18, 2011 at 7:01 AM, Sylvain Lebresne <sylv...@datastax.com> > wrote: >> The Cassandra team is very pleased to announce the release of Apache >> Cassandra >> version 1.0.0. Cassandra 1.0.0 is a new major release that build upon the >> awesomeness of previous versions and adds numerous improvements[1,2], amongst >> which: >> - Compression of on-disk data files (SSTables), with checksummed blocks to >> protect against bitrot[4]. >> - Improvements to memory management through off-heap caches, arena >> allocation and automatic self-tuning, for less GC pauses and more >> predictable performances[5]. >> - Better disk-space management: better control of the space taken by commit >> logs and immediate deletion of obsolete data files. >> - New optional leveled compaction strategy with more predictable performance >> and fixed sstable size[6]. >> - Improved hinted handoffs, leading to less need for read repair for >> better read performances. >> - Lots of improvements to performance[7], CQL, repair, easier operation, >> etc[8]... >> >> And as is the rule for some time now, rolling upgrades from previous versions >> are supported, so there is nothing stopping you to get all those goodies >> right >> now! >> >> Both source and binary distributions of Cassandra 1.0.0 can be downloaded at: >> >> http://cassandra.apache.org/download/ >> >> Or you can use the debian package available from the project APT >> repository[3] >> (you will need to use the 10x series). >> >> The download page also link to the CQL drivers that, from this release on, >> are >> maintained out of tree[9]. >> >> >> That's all folks! >> >> [1]: http://goo.gl/t3qpw (CHANGES.txt) >> [2]: http://goo.gl/6t0qN (NEWS.txt) >> [3]: http://wiki.apache.org/cassandra/DebianPackaging >> [4]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-compression >> [5]: >> http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-improved-memory-and-disk-space-management >> [6]: http://www.datastax.com/dev/blog/leveled-compaction-in-apache-cassandra >> [7]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-performance >> [8]: >> http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-windows-service-new-cql-clients-and-more >> [9]: http://acunu.com/blogs/eric-evans/cassandra-drivers-released/ >> > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com >
