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Vinod Kumar Vavilapalli commented on YARN-3292: ----------------------------------------------- +1, this will be super useful in successfully supporting YARN rolling upgrades! > [Umbrella] Tests and/or tools for YARN backwards compatibility verification > --------------------------------------------------------------------------- > > Key: YARN-3292 > URL: https://issues.apache.org/jira/browse/YARN-3292 > Project: Hadoop YARN > Issue Type: Improvement > Reporter: Li Lu > Assignee: Li Lu > Labels: compatibility, rolling_upgrade, test, tools > > YARN-666 added the support to YARN rolling upgrade. In order to support this > feature, we made changes from many perspectives. There were many assumptions > made together with these existing changes. Future code changes may break > these assumptions by accident, and hence break the YARN rolling upgrades > feature. > To simplify YARN RU regression tests, maybe we would like to create a set of > tools/tests that can verify YARN RU backward compatibility. > On the very first step, we may want to have a compatibility checker for > important protocols and APIs. We may also want to incorporate these tools > into our test Jenkins runs, if necessary. -- This message was sent by Atlassian JIRA (v6.3.4#6332)