[ANNOUNCE] Announcing Trafodion 1.1

2015-05-04 Thread Birdsall, Dave
Good morning HBasers, I'm pleased to announce that Trafodion Release 1.1 is now available for download at http://downloads.trafodion.org/. This is a minor release, improving upon Trafodion's position of being the Enterprise-class Transactional SQL Engine for HBase and Hadoop. Even though we've

RE: Current Deployment Sizes

2014-11-21 Thread Birdsall, Dave
Hi Julian, I don't have an answer to your question, but I want to better understand your question: You are looking for data on the largest HBase deployments in practice, correct? Regards, Dave -Original Message- From: Julian Wissmann [mailto:julianwissm...@gmail.com] Sent: Friday,

[ANNOUNCE] Trafodion 0.9.0 is now available

2014-10-30 Thread Birdsall, Dave
Hello HBase Users, I wanted to let you know that a new release 0.9.0 of the Trafodion project is now available. Here is a sampling of its new features: 1. Rebase to HBase 0.98, support for Cloudera CDH 5.1 and Hortonworks HDP 2.1 2. Significant performance improvements on transactional and

RE: Introducing Project Trafodion

2014-06-12 Thread Birdsall, Dave
this! Awesome. So what advantages does Trafodion have against Apache Phoenix or Cloudera's Impala? thanks, liam On Wed, Jun 11, 2014 at 4:33 PM, Stack st...@duboce.net wrote: Nice. Congrats on open sourcing Dave and team. St.Ack On Wed, Jun 11, 2014 at 2:57 PM, Birdsall

RE: White papers/Solution implemented to use HIVE/HBASE as OLTP

2014-06-11 Thread Birdsall, Dave
Hi, Trafodion uses the MVCC concurrency model. So reads are always allowed. It checks for conflicts at transaction commit. Updates made by a transaction become visible to other reads at commit time. Regards, Dave -Original Message- From: Michael Segel

Introducing Project Trafodion

2014-06-11 Thread Birdsall, Dave
Hi, The cat is already out of the bag on Trafodion on this dlist (and we are very happy about it actually). But, here's an official announcement anyway. Hewlett-Packard is pleased to announce the release of project Trafodion as an open source project. Trafodion is a transactional SQL engine