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Hadoop, mail # user - M/R, Strange behavior with multiple Gzip files

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M/R, Strange behavior with multiple Gzip files
x6i4uybz labs 2012-12-05, 16:02
Hi everybody,

I have a M/R job which does a bulk import to hbase.
I have to process many gzip files (2800 x ~ 100mb)

I don't understand why my job instanciates 80 maps but runs each map
sequentialy like if there is only one big gz file.

Is there a problem in my driver ? Or maybe I miss something.
I use "FileInputFormat.addInputPath(job, new Path(args[0]))" where args[0]
is a directory.

Can you help me, please ?

Thanks, Guillaume
Harsh J 2012-12-05, 17:33
x6i4uybz labs 2012-12-06, 16:25
Harsh J 2012-12-06, 16:39