HBase定期备份

转载一份使用Export与Import定期备份的Python代码。每月15日做一次完整备份，每天进行一次增量备份。

    import time
    import datetime
    from datetime import date
    import sys
    import os    

    tablename=sys.argv[1]
    backupDst=sys.argv[2]
    today=date.today()
    if today.day == 15:    //every month, we do a full backup
            backupSubFolder=backupDst+today.isoformat()+"-full"
            cmd="hbase org.apache.hadoop.hbase.mapreduce.Export %s %s"%(tablename,backupSubFolder)
    else:    

            yesterday=datetime.date.today()- datetime.timedelta(days=1)
            todayTimeStamp=time.mktime(today.timetuple())
            yesTimeStamp=time.mktime(yesterday.timetuple())
            backupSubFolder=backupDst+today.isoformat()
            cmd="hbase org.apache.hadoop.hbase.mapreduce.Export %s %s %s"%(tablename,backupSubFolder,str(int(todayTimeStamp)*1000)    

    print cmd    

    os.system(cmd)  

注意最后的cmd字符串构建，视HBase版本在对应位置添加上版本号。