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