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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-11497) Expose RpcScheduling implementations as LimitedPrivate interfaces
Date Mon, 14 Jul 2014 21:24:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-11497.
------------------------------------

    Resolution: Fixed

Committed addendum to 0.98+

> Expose RpcScheduling implementations as LimitedPrivate interfaces
> -----------------------------------------------------------------
>
>                 Key: HBASE-11497
>                 URL: https://issues.apache.org/jira/browse/HBASE-11497
>             Project: HBase
>          Issue Type: Improvement
>          Components: io, regionserver, Usability
>    Affects Versions: 0.99.0, 0.98.4
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>             Fix For: 0.99.0, 0.98.4, 2.0.0
>
>         Attachments: HBASE-11497-0.98.patch, HBASE-11497.patch, abstract-rpc-sched.patch,
hbase-11497-0.98-v0.patch
>
>
> In PHOENIX-938 we are attempting to resolve cross-RS deadlocks in indexing by adding
custom RPC handlers (so regular puts/reads don't interfere with index updates). However, we've
run into a couple of snags where the interfaces change, making it a bit more difficult to
support interoperability between minor versions as the underlying RPC handling changed (for
the better, but still different :).
> This would just mark those interfaces Public, Evolving, so we still have some flexibility,
but don't break existing usage.
> Note, this kind of thing will come up for any client who is doing custom RPC handling
- beyond the recently added flexibility - but wants to stay in line with the current HBase
implementation (rather than building their own RPC handling mechanisms).



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