Kai Zheng created MAPREDUCE-6775:
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Summary: Fix MapReduce failures caused by default RPC engine
changing
Key: MAPREDUCE-6775
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6775
Project: Hadoop Map/Reduce
Issue Type: Bug
Affects Versions: 3.0.0-alpha2
Reporter: Kai Zheng
Assignee: Kai Zheng
HADOOP-13218 changed the default RPC engine, which isn't inappropriate because
MAPREDUCE-6706 isn't solved yet, supporting TaskUmbilicalProtocol to use
ProtobufRPCEngine.
[~jlowe] reported the following errors:
{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}
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