Re: [RELEASE] Apache Cassandra 1.0 released
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
Re: [RELEASE] Apache Cassandra 1.0 released
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
RE: [RELEASE] Apache Cassandra 1.0 released
Congrats!!! Best regards/ Pagarbiai Viktor Jevdokimov Senior Developer Email: viktor.jevdoki...@adform.com Phone: +370 5 212 3063 Fax: +370 5 261 0453 J. Jasinskio 16C, LT-01112 Vilnius, Lithuania Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.-Original Message- From: Sylvain Lebresne [mailto:sylv...@datastax.com] Sent: Tuesday, October 18, 2011 15:02 To: user@cassandra.apache.org Subject: [RELEASE] Apache Cassandra 1.0 released 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/
Re: [RELEASE] Apache Cassandra 1.0 released
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 Ellisjbel...@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 Lebresnesylv...@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
Re: [RELEASE] Apache Cassandra 1.0 released
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 Ellisjbel...@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 Lebresnesylv...@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
Re: [RELEASE] Apache Cassandra 1.0 released
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 Ellisjbel...@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 Lebresnesylv...@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
Re: [RELEASE] Apache Cassandra 1.0 released
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 Ellisjbel...@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 Lebresnesylv...@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
