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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13218) Migrate other Hadoop side tests to prepare for removing WritableRPCEngine
Date Wed, 07 Sep 2016 17:53:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15471322#comment-15471322
] 

Jason Lowe commented on HADOOP-13218:
-------------------------------------

Not just tests, MapReduce jobs can't run after this change. The tasks fail with this error:
{noformat}
2016-09-07 17:51:56,296 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running
child : java.lang.reflect.UndeclaredThrowableException
	at com.sun.proxy.$Proxy10.getTask(Unknown Source)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:137)
Caused by: com.google.protobuf.ServiceException: Too many or few parameters for request. Method:
[getTask], Expected: 2, Actual: 1
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:199)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)
	... 2 more
{noformat}

I think this needs to be reverted until things are sorted out.

> Migrate other Hadoop side tests to prepare for removing WritableRPCEngine
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-13218
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13218
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: test
>            Reporter: Kai Zheng
>            Assignee: Wei Zhou
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HADOOP-13218-v01.patch, HADOOP-13218-v02.patch
>
>
> Patch for HADOOP-12579 contains lots of work to migrate the left Hadoop side tests basing
on the new RPC engine and nice cleanups. HADOOP-12579 will be reverted to allow some time
for YARN/Mapreduce side related changes, open this to recommit most of the test related work
in HADOOP-12579 for easier tracking and maintain, as other sub-tasks did.



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