Zhijie Shen created MAPREDUCE-5160:
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Summary: Aggregatewordcount and aggregatewordhist in hadoop-1
examples can not find their inner classes when running on Yarn
Key: MAPREDUCE-5160
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5160
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Zhijie Shen
Assignee: Zhijie Shen
Aggregatewordcount and Aggregatewordhist of hadoop-1 cannot run on hadoop-2 due
to
org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob.createValueAggregatorJob(String
args[], Class<?> caller) is not available on hadoop-2 (see MAPREDUCE-5159).
After I changed Aggregatewordcount and Aggregatewordhist to use
createValueAggregatorJob(String args[], Class<? extends
ValueAggregatorDescriptor>[] descriptors), which is available on hadoop-2, the
two examples could be accepted and run on Yarn.
However, the two examples still failed, because their inner classes,
WordCountPlugInClass and AggregateWordHistogramPlugin, cannot be found in
runtime, respectively. Both the plugin classes extend
org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor.
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