Job tracker should collect detailed information about tasks and return it to
the client
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Key: HADOOP-577
URL: http://issues.apache.org/jira/browse/HADOOP-577
Project: Hadoop
Issue Type: Bug
Components: mapred
Environment: all
Reporter: arkady borkovsky
Mapreduce driver should get detailed information about task execution -- at
least at the end of the job so that it can be repoted to the user (stored in a
"normal" or HDFS file, printed to the stdout, whatever).
This information should include, at least:
-- task execution start and end
-- the number of record read and written
-- the number of butes read and written
for each task (for each attempt)
It would also be nice to have this infromation while the job is running,
updated at least when a task is started or ended.
However, this is just "nice to have", while the final report is quite essential.
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