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https://issues.apache.org/jira/browse/HBASE-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ryan rawson updated HBASE-2219:
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Status: Patch Available (was: Open)
this is a pretty serious change, while it makes all previous RPCs incompatible,
it also allows for minor changes to the interface without altering the version
number.
There may be a performance hit, we should consider running some microbenches as
well as a larger test.
> 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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