Home
Reading
Searching
Subscribe
Sponsors
Statistics
Posting
Contact
Spam
Lists
Links
About
Hosting
Filtering
Features Download
Marketing
Archives
FAQ
Blog
 
Gmane
From: Sylvain Lebresne <sylvain <at> datastax.com>
Subject: [RELEASE] Apache Cassandra 1.0 released
Newsgroups: gmane.comp.db.cassandra.user
Date: Tuesday 18th October 2011 12:01:37 UTC (over 5 years ago)
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/
 
CD: 3ms