Send JobConf and JobHistory data to MetricsContext
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Key: HADOOP-4641
URL: https://issues.apache.org/jira/browse/HADOOP-4641
Project: Hadoop Core
Issue Type: New Feature
Environment: Redhat EL 4.5
Reporter: Eric Yang
JobConf and JobHistory data contain rich information of the mapreduce job.
However, the job information are only available temporarily until they are
expired by JobTracker. This ticket is to request the information to be cloned
to MetricsContext. This information can be archived by external system that
interface with Hadoop, such as Chukwa and Ganglia.
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