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HBase 定期备份

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Release: 2016-06-07 17:27:19
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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。

如何使用HBase的Export与Import完成备份功能,请参照我之前的《HBase 增量备份》。
 
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。

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