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MapReduce, mail # user - Access Hadoop Counters


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Access Hadoop Counters
Nan Zhu 2012-10-30, 03:49
Hi, all

I noticed that in FileInputFormat and FileOutputFormat classes, there are counters(Counter's name?) for input and output data size,

my question is that given a JobInProgress object, e.g. jip, after I get the corresponding object by

FileInputFormat fif = (FileInputFormat) jip.getConf().getInputFormat();
FileOutputFormat fof = (FileOutputFormat) jip.getConf().getOutputputFormat();

How can I access the values of the counters?

Best,

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Nan Zhu
School of Computer Science,
McGill University
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Harsh J 2012-10-30, 04:51
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Nan Zhu 2012-10-30, 15:51