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Posted to common-user@hadoop.apache.org by Edmund Day <ed...@yahoo.com> on 2014/08/25 13:26:16 UTC
fpcalc on Hadoop streaming can't find file
I have an hdfs directory that contains audio files. I wish to run fpcalc on each file using Hadoop streaming. I can do this locally no problem, but in hadoop fpcalc cannot see the files.
My code is:
import shlex
cli = './fpcalc -raw -length ' + str(sample_length) + ' ' + file_a
from subprocess import Popen, PIPE
cli_parts = shlex.split(cli)
fpcalc_cli = Popen(cli_parts, stdin=PIPE, stderr=PIPE, stdout=PIPE)
fpcalc_out,fpcalc_err=fpcalc_cli.communicate()
cli_parts is: ['./fpcalc', '-raw', '-length', '30', '/user/hduser/audio/input/flacOriginal1.flac'] and runs fine locally.
fpcalc_err is:
ERROR: couldn't open the file
ERROR: unable to calculate fingerprint for file /user/hduser/audio/input/flacOriginal1.flac, skipping
the file DOES exist:
hadoop fs -ls /user/hduser/audio/input/flacOriginal1.flac
Found 1 items
-rw-r--r-- 1 hduser supergroup 2710019 2014-08-08 11:49 /user/hduser/audio/input/flacOriginal1.flac
Can I point to a file like this in Hadoop streaming?
TIA!!!!
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