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https://issues.apache.org/jira/browse/MAPREDUCE-6705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15304266#comment-15304266
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Chris Nauroth commented on MAPREDUCE-6705:
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Hello [~bibinchundatt]. The exception looks like an incompatibility between
client and server protobuf RPC message definitions. Can you please share what
version of Hadoop is showing this problem? Are you running different versions
for different components?
> Task failing continuously on trunk
> ----------------------------------
>
> Key: MAPREDUCE-6705
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6705
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Priority: Blocker
>
> Task attempt failing continuously. Submit any mapreduce application
> Run the job as below
> {code}
> ./yarn jar ../share/hadoop/mapreduce/hadoop-mapreduce-examples*.jar pi
> -Dyarn.app.mapreduce.am.env="HADOOP_MAPRED_HOME={{HADOOP_COMMON_HOME}}"
> -Dmapreduce.admin.user.env="HADOOP_MAPRED_HOME={{HADOOP_COMMON_HOME}}" 1 1
> {code}
> {noformat}
> 2016-05-27 11:28:27,148 DEBUG [main] org.apache.hadoop.ipc.Client: getting
> client out of cache: org.apache.hadoop.ipc.Client@291ae
> 2016-05-27 11:28:27,160 DEBUG [main] org.apache.hadoop.mapred.YarnChild: PID:
> 22305
> 2016-05-27 11:28:27,160 INFO [main] org.apache.hadoop.mapred.YarnChild:
> Sleeping for 0ms before retrying again. Got null now.
> 2016-05-27 11:28:27,161 WARN [main] org.apache.hadoop.mapred.YarnChild:
> Exception running child : java.lang.reflect.UndeclaredThrowableException
> at com.sun.proxy.$Proxy10.getTask(Unknown Source)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:136)
> Caused by: com.google.protobuf.ServiceException: Too many or few parameters
> for request. Method: [getTask], Expected: 2, Actual: 1
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
> ... 2 more
> 2016-05-27 11:28:27,161 DEBUG [main] org.apache.hadoop.ipc.Client: stopping
> client from cache: org.apache.hadoop.ipc.Client@291ae
> 2016-05-27 11:28:27,161 DEBUG [main] org.apache.hadoop.ipc.Client: removing
> client from cache: org.apache.hadoop.ipc.Client@291ae
> {noformat}
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