Re: Is Avro/Trevni strictly read-only?

2013-01-29 Thread Doug Cutting
Avro and Trevni files do not support record update or delete.

For large changing datasets you might use Kiji (http://www.kiji.org/)
to store Avro data in HBase.

Doug

On Mon, Jan 28, 2013 at 12:00 PM, ccleve ccleve.t...@gmail.com wrote:
 I've gone through the documentation, but haven't been able to get a definite
 answer: is Avro, or specifically Trevni, only for read-only data?

 Is it possible to update or delete records?

 If records can be deleted, is there any code that will merge row sets to get
 rid of the unused space?





Re: Is Avro/Trevni strictly read-only?

2013-01-29 Thread Russell Jurney
Intel's HBase Panthera has an Avro document store builtin - another option:
https://github.com/intel-hadoop/hbase-0.94-panthera


On Tue, Jan 29, 2013 at 3:24 PM, Doug Cutting cutt...@apache.org wrote:

 Avro and Trevni files do not support record update or delete.

 For large changing datasets you might use Kiji (http://www.kiji.org/)
 to store Avro data in HBase.

 Doug

 On Mon, Jan 28, 2013 at 12:00 PM, ccleve ccleve.t...@gmail.com wrote:
  I've gone through the documentation, but haven't been able to get a
 definite
  answer: is Avro, or specifically Trevni, only for read-only data?
 
  Is it possible to update or delete records?
 
  If records can be deleted, is there any code that will merge row sets to
 get
  rid of the unused space?
 
 
 




-- 
Russell Jurney twitter.com/rjurney russell.jur...@gmail.com datasyndrome.com