樣本
目標:把伺服器CentOS上的redis資料複製到Mac機上
步驟:
在CentOS上找dump檔案位置
vi /etc/redis.confdbfilename dump.rdb dir /var/lib/redis
說明檔案在
在mac上尋找dump檔案位置
vi /usr/local/etc/redis.confdbfilename dump.rdb dir /usr/local/var/db/redis
拷貝伺服器上的dump.rdb到mac機器
scp root@dv:/var/lib/redis/dump.rdb ./
在mac上重啟Redis
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.redis.plist launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
PS:備份指令碼
看如下指令碼,
#! /bin/bashPATH=/usr/local/bin:$PATHredis-cli SAVEdate=$(date +"%Y%m%d")cp /var/lib/redis/6379/dump.rdb /data01/cache_backup/$date.rdbecho "done!"
有如上指令碼,便可以cron等方式備份redis資料檔案了。細節如下:
首先必須進行SAVE, 因為redis的rdb檔案並非總是記憶體資料的完整鏡像,備份之前必須進行SAVE,即向其發送SAVE命令,其次拷貝走其rdb檔案即可。
rdb的具體路徑不一定是如上路徑,可以在redis設定檔中尋找, /etc/redis/6379.conf
# The filename where to dump the DBdbfilename dump.rdb# The working directory.## The DB will be written inside this directory, with the filename specified# above using the 'dbfilename' configuration directive.## Also the Append Only File will be created inside this directory.## Note that you must specify a directory here, not a file name.dir /var/lib/redis/6379