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Posted to dev@hive.apache.org by "Prasad Mujumdar (JIRA)" <ji...@apache.org> on 2013/12/19 20:40:07 UTC
[jira] [Commented] (HIVE-6061) Metastore (and other) Thrift APIs
should use request-response pattern
[ https://issues.apache.org/jira/browse/HIVE-6061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13853194#comment-13853194 ]
Prasad Mujumdar commented on HIVE-6061:
---------------------------------------
HiveServer2 IDL already uses request/response structures.
> Metastore (and other) Thrift APIs should use request-response pattern
> ---------------------------------------------------------------------
>
> Key: HIVE-6061
> URL: https://issues.apache.org/jira/browse/HIVE-6061
> Project: Hive
> Issue Type: Wish
> Components: Metastore, Thrift API
> Reporter: Sergey Shelukhin
>
> Wish in lieu of "brainstorming" JIRA.
> Metastore Thrift APIs currently use normal method signatures (e.g. int foo(string bar, double baz)); this is problematic in Thrift because the APIs cannot be evolved without breaking compat; and weird names have to be invented because overloading is not supported either.
> An easy solution to this is to have methods in the form of FooResponse foo(FooRequest req); the structures can then be evolved easily.
> This may apply also to other Thrift APIs, I have not checked.
> This is a brainstorming JIRA for the transformations. Obviously this will either double the API size, or cause massive backward incompatibility.
> Maybe we can do 1-2 releases with both APIs, marking the old ones deprecated in some form, and then remove them?
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