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Hadoop >> mail # user >> Doubt regarding Binary Compatibility\Source Compatibility with old *mapred* APIs  and new *mapreduce* APIs in Hadoop

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Re: Doubt regarding Binary Compatibility\Source Compatibility with old *mapred* APIs and new *mapreduce* APIs in Hadoop
bq. Regarding #3 if I have ONLY the binaries i.e. jar file (compiled\build
against old MRv1 mapred APIS)

Which APIs are you talking about, *mapred* or *mapreduce*? In #3, I was
saying about *mapreduce*. If this is the case, you may be in the trouble
unfortunately, because MRv2 has evolved so much in *mapreduce *APIs that
it's difficult to ensure binary compatibility. Anyway, you should still try
your luck, as your binaries may not use the incompatible APIs. On the other
hand, if you meant *mapred* APIs instead, you binaries should just work.

- Zhijie
On Tue, Apr 15, 2014 at 1:35 PM, Radhe Radhe
Zhijie Shen
Hortonworks Inc.

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