ReflectionUtils.setConf would configure the KeyFieldBasedPartitioner twice in
Hadoop 0.21.0, when KeyFieldBasedPartitioner is an Configurable instance
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Key: HADOOP-7425
URL: https://issues.apache.org/jira/browse/HADOOP-7425
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 0.21.0
Reporter: steven zhuang
In the setConf method of org.apache.hadoop.util.ReflectionUtils, any instance
of Configurable would be configured twice.
In 0.21.0, KeyFieldBasedPartitioner implements the Configurable interface. When
configured twice, it get two KeyDescription and gives out wrong partition
number.
public static void setConf(Object theObject, Configuration conf) {
if (conf != null) {
if (theObject instanceof Configurable) {
((Configurable) theObject).setConf(conf);
}
setJobConf(theObject, conf);
}
}
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