#!/bin/sh

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getent group hadoop 2>/dev/null >/dev/null || /usr/sbin/groupadd -r hadoop

/usr/sbin/useradd --comment "Hadoop MapReduce" --shell /bin/bash -M -r --groups hadoop --home /var/lib/hadoop/mapred mapred 2> /dev/null || :
/usr/sbin/useradd --comment "Hadoop HDFS" --shell /bin/bash -M -r --groups hadoop --home /var/lib/hadoop/hdfs hdfs 2> /dev/null || :