flatmap的用法，还有关于sql的udf
hadoop fs -mkdir /scdata
hadoop fs -mkdir /scdata/riskModel
2042 sudo hdfs dfsadmin -safemode leave
2043 hdfs dfsadmin -safemode leave
2044 sudo /hdfs dfsadmin -safemode leave
2045 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2046 sudo hdfs dfsadmin -safemode leave
2047 hadoop fs -ls\
2048 hadoop fs -ls
2049 hadoop fs -ls /
2050 hadoop fs -df
2051 df -h
2052 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2053 sudo hdfs dfsadmin -safemode leave
2054 hdfs dfsadmin -safemode leave
2055 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2056 hadoop dfsadmin -safemode leave
2057 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2058 sudo hadoop dfsadmin -safemode leave
2059 hadoop dfsadmin -safemode leave
2060 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2061 sudo -u scdata hdfs dfsadmin -safemode leave
2062 sudo -u scdata hadoop dfsadmin -safemode leave
2063 ll
2064 ll | hadoop
2065 pwd
2066 sudo -u scdata /bin/hadoop dfsadmin -safemode leave
2067 hadoop dfsadmin -safemode forceExit
2068 ll
2069 cd /opt/
2070 ll
2071 cd local/
2072 ll
2073 cd hadoop-2.7.3/
2074 ll
2075 cd sbin/
2076 ll
2077 ./stop-all.sh
2078 ./start-all.sh
2079 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2080 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /
2081 hadoop fs -ls /
2082 df
2083 hadoop fs -mkdir /scdata
2084 hadoop fs -mkdir /scdata/riskModel
2085 hadoop fs -put /home/scdata/get_bankrupt_com_and_time.csv /scdata/riskModel/
2086 hadoop fs -put /home/scdata/banckrupt_data.csv /scdata/riskModel/