[
https://issues.apache.org/jira/browse/MAPREDUCE-3169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13137493#comment-13137493
]
Tom White commented on MAPREDUCE-3169:
--------------------------------------
Looks good.
There are lots of tests that use MiniMRCluster - these need to be ported to use
the new interface and moved into the mvn tree. Those which test JobTracker and
TaskTracker internals shouldn't be updated, of course, but there are many
client-only tests that serve as regression tests for MR which we need to be
running. I'd like to see this done as a part of this work since going through
this exercise will likely inform the MiniMRClientCluster API.
> Create a new MiniMRCluster equivalent which only provides client APIs cross
> MR1 and MR2
> ---------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3169
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3169
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv1, mrv2, test
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Ahmed Radwan
> Attachments: MAPREDUCE-3169-0.20-security.patch,
> MAPREDUCE-3169-truck.patch
>
>
> Many dependent projects like HBase, Hive, Pig, etc, depend on MiniMRCluster
> for writing tests. Many users do as well. MiniMRCluster, however, exposes MR
> implementation details like the existence of TaskTrackers, JobTrackers, etc,
> since it was used by MR1 for testing the server implementations as well.
> This JIRA is to create a new interface which could be implemented either by
> MR1 or MR2 that exposes only the client-side portions of the MR framework.
> Ideally it would be "recompile-compatible" with MiniMRCluster for most
> applications, and the MR1 implementation could be backported to 20x branch.
> Thus, dependent projects like HBase could migrate to this implementation and
> test against both MR1 and MR2. We can also use this to port over the current
> functional tests that use only the client-side features of MiniMRCluster.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
