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曾经的功能列表可能会迅速变得过时了。而且,有些功能对有的应用程序非常重要,但是对别的应用程序则不一定。 IfyouhostyourownblogoranyWeb-basedapplicationrunningonthestack,youshouldhaveabackupsysteminplaceforkeepingdatastoredinMySQLdatabasessafe.Thereareseveralsolutionsthatcanhelpyouwiththat,butnothingbeatsasimpleBashscriptIstumbleduponinablogpostcomment.Hereisthescriptinallitsbeauty:
【假如你办理有运转在在Apache/MySQL/PHP栈上本人的博客或基于Web的使用,你应该有一个备份体系,以包管MySQL数据库中数据的平安。固然有一些好举措,但没一个比得上一个复杂的Bash剧本。那是我再一则博客批评上偶尔发明的。一下就是美尽在个中的那一剧本:】
#!/bin/bashNOW=`date+"%Y-%m"`;BACKUPDIR="location/of/your/backup/dir/$NOW";###ServerSetup####*MySQLloginusername*#MUSER="user";#*MySQLloginPASSWORDname*#MPASS="pass";#*MySQLloginHOSTname*#MHOST="your-mysql-ip";MPORT="your-mysql-port";#DONOTBACKUPthesedatabasesIGNOREDB="information_schemamysqltest"#*MySQLbinaries*#MYSQL=`whichmysql`;MYSQLDUMP=`whichmysqldump`;GZIP=`whichgzip`;#assumingthat/nasismountedvia/etc/fstabif[!-d$BACKUPDIR];thenmkdir-p$BACKUPDIRelse:fi#getalldatabaselistingDBS="$(mysql-u$MUSER-p$MPASS-h$MHOST-P$MPORT-Bseshowdatabases)"#SETDATEANDTIMEFORTHEFILENOW=`date+"d%dh%Hm%Ms%S"`;#day-hour-minute-secformat#starttodumpdatabaseonebyonefordbin$DBSdoDUMP="yes";if["$IGNOREDB"!=""];thenforiin$IGNOREDB#Storeallvalueof$IGNOREDBONidoif["$db"=="$i"];then#Ifresultof$DBS(db)isequalto$IGNOREDB(i)thenDUMP="NO";#SETvalueofDUMPto"no"#echo"$idatabaseisbeingignored!";fidonefiif["$DUMP"=="yes"];then#IfvalueofDUMPis"yes"thenbackupdatabaseFILE="$BACKUPDIR/$NOW-$db.gz";echo"BACKINGUP$db";$MYSQLDUMP--add-drop-database--opt--lock-all-tables-u$MUSER-p$MPASS-h$MHOST-P$MPORT$dbgzip>$FILEfidone
Thebestpartisthatyouonlyneedtospecifyahandfulofparameterstomakethescriptwork.ThisincludesBACKUPDIR(thedestinationforstoringbackups),MUSER(MySQLuser),MPASS(MySQLuserpassword),MHOST(theIPaddressoftheMySQLserver,e.g.localhost),andMPORT(theporttheMySQLdatabaseisrunningon,defaultis3306).
【它的最年夜长处在于,在运转剧本之前,你只必要界说一些参数。这包含BACKUPDIR(存储天职的目次),MUSER(MySQL用户),MPASS(MySQL用户暗码),MHOST(MySQL服务器IP地点,如:localhost),和MPORT(MySQL数据库事情的端口,默许是3306)。】
Youcanrunthescriptmanually,oryoucansetupacronjobwhichwillperformbackupsonaregularbasis.Todothis,runthecrontab-ecommandandaddthefollowingline(replacethesamplepathwiththeactualpathandbackupscriptname):
【你能够手动运转这一剧本,大概设置一个企图功课(acronjob)以使备份按企图主动举行。设置企图功课的办法是,运转crontab-e命令,并到场以下代码(请用实践路径和备份剧本名交换示例路径):】
@daily/path/to/mysqlbackupscript.sh
Dontforgettomakethescriptexecutableusingthechmoda+xmysqlbackupscript.shcommand.
【别忘了利用chmoda+xmysqlbackupscript.sh命令将剧本可实行化。】
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DBaaS会导致单一客户利润率的下降,因为云服务一般是依靠MySQL学习教程数来抵消较低的利润率。 |
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