40 lines
1.5 KiB
Python
Executable File
40 lines
1.5 KiB
Python
Executable File
#!/usr/bin/python
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"""
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This is an example job submit script for hadoop streaming
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"""
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import argparse
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import sys
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import os
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import subprocess
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sys.path.append('./src/')
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from rabit_master import Master
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from threading import Thread
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def hadoop_streaming(nslaves, slave_args):
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cmd = '%s jar %s -input %s -output %s -mapper \"%s %s\" -reducer /bin/cat stdin %d %d stdout' % (args.hadoop_binary, args.hadoop_streaming_jar, args.input, args.output, args.mapper, slave_args, args.nclusters, args.iterations)
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print cmd
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subprocess.check_call(cmd, shell = True)
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parser = argparse.ArgumentParser(description='Hadoop Streaming submission script')
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parser.add_argument('-s', '--nslaves', required=True, type=int)
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parser.add_argument('-hb', '--hadoop_binary', required=True)
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parser.add_argument('-hs', '--hadoop_streaming_jar', required=True)
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parser.add_argument('-i', '--input', required=True)
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parser.add_argument('-o', '--output', required=True)
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parser.add_argument('-m', '--mapper', required=True)
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#parser.add_argument('-r', '--reducer', required=False)
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parser.add_argument('-k', '--nclusters', required=True, type=int)
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parser.add_argument('-itr', '--iterations', required=True, type=int)
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args = parser.parse_args()
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master = Master()
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# this is availabe after triggered the hadoop streaming job, not sure how to do it
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# os.environ["mapred_job_id"]
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slave_args = ['master_uri=%s' % 'TODO', 'master_port=%s' % 'TODO']
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submit_thread = Thread(target = hadoop_streaming, args = slave_args)
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submit_thread.start()
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master.accept_slaves(args.nslaves)
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submit_thread.join()
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