为防止宕机灾难,我用python的schedule库定时做每日数据自动备份。
参见共享代码中 db_backup.py.
import schedule
import time
import xconfig as C
import util.xtool as xtool
import util.tradeDate as TD
import util.dbcom as dbcom
import dataMan.dbMan as dbMan
runTime = "23:30:00"
print('backup DB, waiting to start at %s ...' % (runTime))
def db_backup(title):
print(title)
if xtool.nowDate() in TD.tradeDate:
dbcom.backup(dbName='future')
dbcom.backup(dbName='acc')
dbMan.dumpAdog(db_name='future')
dbMan.dumpAdog(db_name='userDB')
else:
print('%s not in tradeDate'%(xtool.nowDate()))
schedule.every().day.at(runTime).do(db_backup, 'start to db_backup....')
while True:
schedule.run_pending()
time.sleep(1)
其中:
schedule.every().day.at(runTime).do(db_backup, 'start to db_backup....')
是定时自动设置任何时间,执行任务。
backup() 方法是自动备份MySQL的某数据库,核心语句是:
cmd="mysqldump -h%s -P%s -u%s -p%s %s --default_character-set=%s > %s/%s.sql" %( host, port,user,pwd,dbName,dbCharset,backupDir,dbName )
os.system(cmd)
dump()方法是自动备份mongodb 的某数据库,核心语句是:
com='mongodump -u user -p password --port 27017 --authenticationDatabase admin -d %s -o /home/xfs/adog/ftp/db/mongo/%s/'%(db_name,xtool.nowDate())
os.system(com)
如有问题,请看知乎(阿岛格)个人主页扫码“ 知shi星球(阿岛格)”加入讨论。