好开发

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。