Large # of Pending Tasks?
Hi, I'm using a single node Cassandra on 24 Core/48GB system. I have set my writers and readers (in yaml) to be around 192 for both and read and write. In this mode, when stressed with 192 threads for inserts and reads, what I observed via the jconsole of 'client request' the active read and write tasks never go beyond 24. However there are as many as 192 pending tasks. I was expecting Cassandra server to utilize the threads that are created using yaml and perform as many parallel inserts and reads. Why cassandra active task count doesn't go beyond 24 when the actual writers and readers are around 192 ? Any thoughts? /BK
[VOTE] Release Apache Cassandra 1.2.9
The changelog is getting big, I propose the following artifacts for release as 1.2.9. sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 Git: http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative Artifacts: https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ Staging repository: https://repository.apache.org/content/repositories/orgapachecassandra-116/ The artifacts as well as the debian package are also available here: http://people.apache.org/~slebresne/ The vote will be open for 72 hours (longer if needed). [1]: http://goo.gl/nfCb5Y (CHANGES.txt) [2]: http://goo.gl/pxDqrc (NEWS.txt)
Re: [VOTE] Release Apache Cassandra 1.2.9
+1 On Mon, Aug 26, 2013 at 1:53 PM, Sylvain Lebresne wrote: > The changelog is getting big, I propose the following artifacts for release > as 1.2.9. > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > Git: > > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > Artifacts: > > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > Staging repository: > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > The artifacts as well as the debian package are also available here: > http://people.apache.org/~slebresne/ > > The vote will be open for 72 hours (longer if needed). > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > [2]: http://goo.gl/pxDqrc (NEWS.txt) >
Re: [VOTE] Release Apache Cassandra 1.2.9
+1 On Mon, Aug 26, 2013 at 11:54 AM, Brandon Williams wrote: > +1 > > > On Mon, Aug 26, 2013 at 1:53 PM, Sylvain Lebresne >wrote: > > > The changelog is getting big, I propose the following artifacts for > release > > as 1.2.9. > > > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > > Git: > > > > > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > > Artifacts: > > > > > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > > Staging repository: > > > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > > > The artifacts as well as the debian package are also available here: > > http://people.apache.org/~slebresne/ > > > > The vote will be open for 72 hours (longer if needed). > > > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > > [2]: http://goo.gl/pxDqrc (NEWS.txt) > > >
Re: [VOTE] Release Apache Cassandra 1.2.9
+1 On Monday, August 26, 2013, Sylvain Lebresne wrote: > The changelog is getting big, I propose the following artifacts for release > as 1.2.9. > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > Git: > > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > Artifacts: > > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > Staging repository: > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > The artifacts as well as the debian package are also available here: > http://people.apache.org/~slebresne/ > > The vote will be open for 72 hours (longer if needed). > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > [2]: http://goo.gl/pxDqrc (NEWS.txt) >
Re: [VOTE] Release Apache Cassandra 1.2.9
+1 On Mon, Aug 26, 2013 at 1:53 PM, Sylvain Lebresne wrote: > The changelog is getting big, I propose the following artifacts for release > as 1.2.9. > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > Git: > > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > Artifacts: > > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > Staging repository: > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > The artifacts as well as the debian package are also available here: > http://people.apache.org/~slebresne/ > > The vote will be open for 72 hours (longer if needed). > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > [2]: http://goo.gl/pxDqrc (NEWS.txt) > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder, http://www.datastax.com @spyced
Re: [VOTE] Release Apache Cassandra 1.2.9
[ Sylvain Lebresne ] > The changelog is getting big, I propose the following artifacts for release > as 1.2.9. > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > Git: > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > Artifacts: > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > Staging repository: > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > The artifacts as well as the debian package are also available here: > http://people.apache.org/~slebresne/ +1 > The vote will be open for 72 hours (longer if needed). > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > [2]: http://goo.gl/pxDqrc (NEWS.txt) -- Eric Evans eev...@sym-link.com
Re: [VOTE] Release Apache Cassandra 1.2.9
+1 On Monday, August 26, 2013, Sylvain Lebresne wrote: > The changelog is getting big, I propose the following artifacts for release > as 1.2.9. > > sha1: ae62c947fc245295785324502bf6bc2c1c8477f9 > Git: > > http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/1.2.9-tentative > Artifacts: > > https://repository.apache.org/content/repositories/orgapachecassandra-116/org/apache/cassandra/apache-cassandra/1.2.9/ > Staging repository: > https://repository.apache.org/content/repositories/orgapachecassandra-116/ > > The artifacts as well as the debian package are also available here: > http://people.apache.org/~slebresne/ > > The vote will be open for 72 hours (longer if needed). > > [1]: http://goo.gl/nfCb5Y (CHANGES.txt) > [2]: http://goo.gl/pxDqrc (NEWS.txt) >
