Robert Kanter created OOZIE-2316:
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Summary: Drop support for Hadoop 1 and 0.23
Key: OOZIE-2316
URL: https://issues.apache.org/jira/browse/OOZIE-2316
Project: Oozie
Issue Type: Bug
Affects Versions: trunk
Reporter: Robert Kanter
Given that Hadoop 2.x has had many releases now (2.8 is next), Hadoop 1.x
hasn't had a release in a really long time, and Hadoop 3.0 is coming somewhat
soonish, it would be good to drop support Hadoop 1.x and Hadoop 0.23. I
believe most users are using Hadoop 2.x anyway.
This should help simplify the build a lot as we can probably get rid of the
hadooplibs stuff and don't need to set Hadoop 1 and Hadoop 2+ properties (e.g.
JT and RM addresses), so we can get rid of those cases as well.
It might also be good to create new versions of the schemas that use
{{<resource-manager>}} instead of {{<job-tracker>}} (the existing schemas would
of course still work). While this is a minor thing, it does bring up questions
every so often of "does Oozie support Hadoop 2/YARN?" And "how do I specify
the RM?" Alternatively, we could update the existing schemas to allow one of
{{<resource-manager>}} or {{<job-tracker>}}. I'm not sure what we should do
about any config properties in Oozie site that mention "job-tracker".
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