[ 
https://issues.apache.org/jira/browse/HADOOP-6685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965803#action_12965803
 ] 

Sanjay Radia commented on HADOOP-6685:
--------------------------------------

@Doug> Progress stopped on HADOOP-6659 when Eric vetoed my incremental approach
Doug, at least a couple of folks asked for a design doc and fuller plan; you 
did not provide it.

Doug you added a dependency on Avro in RPC without providing a plan on how all 
the pieces are put together. Indeed it is more than just a library dependency - 
there are avro related annotations. While I am a fan of Avro (being part of the 
team that created it at Yahoo), I see no problems in adding first class support 
for PB since it is a robust serialization framework. 
When I let the Avro dependency creep into Hadoop I did not think that Doug 
would be opposed to adding support for PB in the future. Both need to be 
supported in 
a first class way. My feeling is that Avro will prevail in the long term but 
right now PB addresses the needs of many users.



> Change the generic serialization framework API to use serialization-specific 
> bytes instead of Map<String,String> for configuration
> ----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6685
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6685
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.22.0
>
>         Attachments: libthrift.jar, serial.patch, serial4.patch, 
> serial6.patch, serial7.patch, SerializationAtSummit.pdf
>
>
> Currently, the generic serialization framework uses Map<String,String> for 
> the serialization specific configuration. Since this data is really internal 
> to the specific serialization, I think we should change it to be an opaque 
> binary blob. This will simplify the interface for defining specific 
> serializations for different contexts (MAPREDUCE-1462). It will also move us 
> toward having serialized objects for Mappers, Reducers, etc (MAPREDUCE-1183).

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to