将记录从导出到hdfs中
 
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ConnectURL=jdbc:mysql://localhost:3306/user_action
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UserName=root
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PassWord=123456
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OutputPath=/hdfs/recommend/user_action/watch_record
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TableName= watch_record
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Columns=id,uid,mid,timestamp
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IfJobCreated =`sqoop job list | grep import_ watch_record`
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#检查import_ watch_record这个job是否已经创建 如果未创建则创建
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if [ $IfJobCreated = ’’ ] then
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sqoop  job  import_ watch_record /
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  --create  --import /
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  --connect  $ConnectURL/
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  --username  $UserName/
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  --password  $PassWord/
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  --target-dir  $OutputPath/
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  --m  1/
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  --table  $TableName/
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  –columns  $Columns/
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  --incremental  append/
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  --check-column  id/
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  --last-value  0
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fi
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sqoop  job --exec import_ watch_record