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https://issues.apache.org/jira/browse/HBASE-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833940#action_12833940
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ryan rawson commented on HBASE-2219:
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I am going to commit this to trunk ASAP so it gets into 0.21 sooner than later.
Now, the question is, do we expect to maintain the 0.20.x branch longer, and if
so are we willing to take a 1 time hit to get more expandability. I'm thinking
"no".
> stop using code mapping for method names in the RPC
> ---------------------------------------------------
>
> Key: HBASE-2219
> URL: https://issues.apache.org/jira/browse/HBASE-2219
> Project: Hadoop HBase
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.20.3
> Reporter: ryan rawson
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: HBASE-2219-2.patch, HBASE-2219.patch
>
>
> since we use a sorted mapping of method names -> codes and send that over the
> wire, even trivial changes, such as adding a new call, become
> wire-incompatible. This means many features which could easily have gone
> into a minor update must wait for a major update. Eg: 2066, 1845, etc.
> This will increase on-wire overhead, but the compatibility is worth it I
> think.
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