Short version: yes, 1.0 addresses the known repair problems. On Tue, Oct 18, 2011 at 7:29 AM, Maxim Potekhin <potek...@bnl.gov> wrote: > There was a problem in early 0.8 where the repair was taking > forever -- am I right to assume this was fixed in 1.0? > > Many thanks to you guys, > > Maxim > > > On 10/18/2011 2:25 PM, Thibaut Britz wrote: >> >> 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 >>> > >
-- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
