RE: kundera: Open source JPA 1.0 compliant ORM for Cassandra

2010-07-31 Thread Animesh Kumar
HI Michael, We haven't tried Kundera with 0.7 beta yet. However, Kundera runs fine with 0.6.3 -Animesh From: Michael Widmann [mailto:michael.widm...@gmail.com] Sent: Saturday, July 31, 2010 9:02 PM To: user@cassandra.apache.org Subject: Re: kundera: Open source JPA 1.0 compliant ORM for Cassand

Re: Columns limit

2010-07-31 Thread Benjamin Black
Have the TimeUUID as the key, and then index rows named for the time intervals, each containing columns with TimeUUID names giving the data in those intervals. On Sat, Jul 31, 2010 at 5:13 PM, Mark wrote: > So have the TimeUUID as the key? > > SearchLogs : { >    TimeUUID_1 : { metadata goes here

Re: NullPointerException and Java client hang

2010-07-31 Thread Claire Chang
I was able to reproduce this exception consistently. Then I realized that in /etc/default/cassandra JVM_START_MEM="256" It was set to 256 (Bytes). Before It was 128M. I changed it to 256M and made sure that the -Xmx and -Xms in casandra.in.sh and /etc/init.d/cassandra are all in sync. After

Re: Upgrading to Cassanda 0.7 Thrift Erlang

2010-07-31 Thread Dan Washusen
p.s. If I set thrift_framed_transport_size_in_mb to 0 and just use TSocket instead of TFramedTransport everything works as expected... On 1 August 2010 12:16, Dan Washusen wrote: > Slightly off topic but still related (java instead of erlang). I just > tried using the latest trunk build availab

Re: Upgrading to Cassanda 0.7 Thrift Erlang

2010-07-31 Thread Dan Washusen
Slightly off topic but still related (java instead of erlang). I just tried using the latest trunk build available on Hudson (2010-07-31_12-31-29) and I'm getting lock ups. The same code (without the framed transport) was working with a build form 2010-07-07_13-32-16 I'm connecting using the fol

Re: Columns limit

2010-07-31 Thread Mark
So have the TimeUUID as the key? SearchLogs : { TimeUUID_1 : { metadata goes here}, TimeUUID_2 : { metadata goes here}, TimeUUID_3 : { metadata goes here}, ... } On 7/31/10 3:42 PM, Benjamin Black wrote: The proper way to handle this is to have a row per time interval such that

Re: Unreliable transport layer

2010-07-31 Thread Benjamin Black
Because it is extremely well-understood, handles a lot of the reliability needs itself, and nothing more is required for the application. On Thu, Jul 29, 2010 at 7:02 PM, ChingShen wrote: > Why? What reasons did you choose TCP? > > Shen > > On Sat, Mar 6, 2010 at 9:15 AM, Jonathan Ellis wrote: >

Re: what causes MESSAGE-DESERIALIZER-POOL to spike

2010-07-31 Thread Benjamin Black
Sorry, I just noticed: are you running 14 instances of Cassandra on a single physical machine or are all those java processes something else? On Mon, Jul 26, 2010 at 12:22 PM, Dathan Pattishall wrote: > I have 4 nodes on enterprise type hardware (Lots of Ram 12GB, 16 i7 cores, > RAID Disks). > >

Re: Columns limit

2010-07-31 Thread Benjamin Black
The proper way to handle this is to have a row per time interval such that the number of columns per row is constrained. On Thu, Jul 29, 2010 at 2:39 PM, Mark wrote: > Is there any limitations on the number of columns a row can have? Does all > the day for a single key need to reside on a single

Re: kundera: Open source JPA 1.0 compliant ORM for Cassandra

2010-07-31 Thread Michael Widmann
Hi could we run kundera on 0.7beta Version? Thanks for answer Michael 2010/7/31 Sanjay Sharma > Hi All, > > We are happy to announce and share a new ORM over Cassandra – kundera > > The project is Apache licensed and hosted at http://kundera.googlecode.com > > > > The project uses custom Cas

kundera: Open source JPA 1.0 compliant ORM for Cassandra

2010-07-31 Thread Sanjay Sharma
Hi All, We are happy to announce and share a new ORM over Cassandra - kundera The project is Apache licensed and hosted at http://kundera.googlecode.com The project uses custom Cassandra Annotations and is fully JPA 1.0 compliant. @ColumnFamily and @SuperColumnFamily are the main Cassandra specif

Buzz from Richard Grossman

2010-07-31 Thread Richard Grossman
Link to this post: > > http://www.google.com/buzz/111639968428469687153/45SbLERXxFb/How-to-use-JPA-cassandra-adapter-Kundera-with > > 3:56 pm *Richard Grossman:* How to use JPA cassandra adapter "Kundera" > with Spring : > http://code.google.com/p/kundera/wiki/HowToUseKunderaWithSpring >

Chirper: Open source .NET webapp with Cassandra backend

2010-07-31 Thread Chaker NAKHLI
Hi, Chirper is the first open source non trivial webapp example of .NET/Cassandra integration. The code source is available under the Apache 2.0 license in github: http://github.com/nakhli/Chirper Introduction blog post: http://www.javageneration.com/?p=318 Hope you'll find it useful! Chee