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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: protobuf version in 0.94
Date Wed, 02 Apr 2014 12:03:20 GMT
Hum, that means Hadoop 1.0.x and 1.2.x branches will fail...


2014-04-02 2:53 GMT-04:00 Esteban Gutierrez <esteban@cloudera.com>:

> For HBase itself is not a problem :) it compiles, but users running HBase
> 0.94.x in clusters pre HADOOP-9845 they will hit issues during rolling
> restarts specially if the 2.4.0 jar is present. For instance, that can
> break MR jobs.
>
> esteban.
>
>
>
>
> --
> Cloudera, Inc.
>
>
>
> On Tue, Apr 1, 2014 at 9:31 PM, lars hofhansl <larsh@apache.org> wrote:
>
> > Is anybody aware of any reason why we wouldn't just update the protobuf
> > version in 0.94 to 2.5.0?
> >
> > I know 2.5.0 is backward compatible with 2.4.0, but is the reverse true
> as
> > well?
> > I.e. if we do not change any .proto files will 2.4.0 be able to decoded
> > message encoded with 2.5.0?
> > If yes, we should just upgrade. If not we can't upgrade since it would
> > potentially break server-server compatibility and hence rolling upgrades.
> >
> > -- Lars
>

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