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Posted to mapreduce-issues@hadoop.apache.org by "Kai Zheng (JIRA)" <ji...@apache.org> on 2016/09/07 20:52:20 UTC
[jira] [Updated] (MAPREDUCE-6775) Fix MapReduce failures caused by
default RPC engine changing
[ https://issues.apache.org/jira/browse/MAPREDUCE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kai Zheng updated MAPREDUCE-6775:
---------------------------------
Attachment: MAPREDUCE-6775-v1.patch
Provided a fix to change back the default RPC engine.
> 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
> Attachments: MAPREDUCE-6775-v1.patch
>
>
> 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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