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From "Birdsall, Dave" <dave.birds...@hp.com>
Subject [ANNOUNCE] Announcing Trafodion 1.1
Date Mon, 04 May 2015 16:12:24 GMT
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 classified it as a minor
release, we were still very busy.

Here is a summary of the production-ready features in this release:

1.       Support for HDP 2.2 and CDH 5.3 distributions

2.       Several performance features, e.g., improved plan quality, query caching to reduce
compilation time, and Skew Buster, which is patented technology to create better query execution
in the presence of skewed data values

3.       Improvements in high availability

4.       An offline backup/restore facility

5.       A parallel data loader/extractor tool for trickle-loading to and extraction from
Trafodion tables, including the ability to extract from many popular databases and insert
into Trafodion in parallel

6.       Support for the HP Data Services Manager (HP DSM), a tool that provides unified,
browser-based management of Hadoop, Trafodion and HP Vertica data services

7.       Improved repository support

8.       Extensions to query cancel, to support cancelling more kinds of statements

9.       Improved security support

10.   Improved installer

We also have several "Technology Preview" features in this release. These are features that
are (sometimes partially) code complete but not yet fully tested. You're welcome to try them
out and tell us what you think:

1.       The ability to create table statistics via sampling during table load (faster than
loading a table and doing UPDATE STATISTICS afterward)

2.       Several improvements to transaction processing, including local transactions (an
efficiency improvement), Stateless/Stateful Concurrency Control (SSCC) (an improvement in
isolation over traditional MVCC), and transactional support for DDL operations

3.       A metadata cleanup utility (useful when a non-transactional DDL operation fails)

4.       Table-mapping user-defined functions (TMUDFs), that is, support for user-defined
functions that can take a table as input and produce a table as output

We fixed 96 defects in this release as well.

You can read more here: https://wiki.trafodion.org/wiki/index.php/Release_Notes_(1.1.n).

Happy reading,


PS: We'd LOVE to have more contributors! We'll soon be proposing Trafodion as an incubation
project to the Apache Software Foundation, so we'll be using tools you're likely familiar
with. Inquire at our website, http://www.trafodion.org, or by e-mail at trafodion@hp.com<mailto:trafodion@hp.com>.

PPS: Connect with us and see our talks at HBaseCon in San Francisco on May 7<https://wiki.trafodion.org/wiki/index.php/Event:2015/05/07_HBaseCon_2015>.

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