Thanks all. ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com
On 19/10/2011, at 2:45 AM, Jonathan Ellis wrote: > Multiple concurrent schema modifications are not supported in 1.0. > https://issues.apache.org/jira/browse/CASSANDRA-1391 is open to add > this in 1.1. > > On Tue, Oct 18, 2011 at 8:27 AM, Dikang Gu <dikan...@gmail.com> wrote: >> Congrats! >> In 0.8, the schema disagreement occurs sometimes when I create >> keyspaces/column families dynamically, is this also fixed? >> Regards. >> >> On Tue, Oct 18, 2011 at 9:20 PM, Jonathan Ellis <jbel...@gmail.com> wrote: >>> >>> 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 >> >> >> >> -- >> Dikang Gu >> 0086 - 18611140205 >> > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com
