[
https://issues.apache.org/jira/browse/HADOOP-6949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989777#comment-12989777
]
Konstantin Shvachko commented on HADOOP-6949:
---------------------------------------------
The compatible way of doing this is really nice. A couple of questions.
# Can/should we extend this to arrays of non-primitive types? This should
benefit return types for calls like listStatus() and getBlockLocations() on a
large directory.
# Is it enough to increment rpc version only? This changes serialization of
each and every VersionedProtocol. So formally they all should be incremented.
# This seems to be a very important optimization. Would like to raise the
question of applying it to 0.22.
> Reduces RPC packet size for primitive arrays, especially long[], which is
> used at block reporting
> -------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6949
> URL: https://issues.apache.org/jira/browse/HADOOP-6949
> Project: Hadoop Common
> Issue Type: Improvement
> Components: io
> Reporter: Navis
> Assignee: Matt Foley
> Fix For: 0.23.0
>
> Attachments: ObjectWritable.diff, arrayprim.patch, arrayprim_v4.patch
>
> Original Estimate: 10m
> Remaining Estimate: 10m
>
> Current implementation of oah.io.ObjectWritable marshals primitive array
> types as general object array ; array type string + array length + (element
> type string + value)*n
> It would not be needed to specify each element types for primitive arrays.
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
