Redis 关闭持久化及关闭持久化后正确删除持久化之前的数据
去掉持久化
首先要确保你启动Redis加载的配置文件的路径是正确的
修改配置文件 redis.windows-service.conf
找到以下内容并设置 若无请添加
#save 900 1 #save 300 10 #save 60 10000
appendonly=no
save ""
如果之前存储了持久化的数据,发现删除了后重启服务数据还会恢复 来到Redis目录下删除dump.rdb即可。 dump.rdb 是redis 启动的时候会加载的数据文件。
在Redis中提供了两种 持久化功能
1. RDB持久化:
该机制是指在指定的时间间隔内将内存中的数据集快照写入磁盘。
这个机制是redis的默认持久化机制,在redis.conf配置文件当中,有
################################ SNAPSHOTTING ################################# # # Save the DB on disk: # # save <seconds> <changes> # # Will save the DB if both the given number of seconds and the given # number of write operations against the DB occurred. # # In the example below the behaviour will be to save: # after 900 sec (15 min) if at least 1 key changed # after 300 sec (5 min) if at least 10 keys changed # after 60 sec if at least 10000 keys changed save 900 1 save 300 10 save 60 10000 该机制默认15分钟有一次修改,6分钟内有10次修改,1分钟内有10000次修改,将会将快照数据集集中写入磁盘(即dump.rdb文件) 下面两个配置,设置了持久化文件的位置和文件名
# The filename where to dump the DB dbfilename dump.rdb # For default save/load DB in/from the working directory # Note that you must specify a directory not a file name. dir ./
2. AOF持久化:
该机制将以日志的形式记录服务器所处理的每一个写操作,在Redis服务器启动之初会读取该文件来重新构建数据库,以保证启动后数据库中的数据是完整的。
通过在redis.conf配置文件中将
appendonly no 改为yes就会开启AOF持久化功能,默认是no
############################## APPEND ONLY MODE ############################### # By default Redis asynchronously dumps the dataset on disk. If you can live # with the idea that the latest records will be lost if something like a crash # happens this is the preferred way to run Redis. If instead you care a lot # about your data and don't want to that a single record can get lost you should # enable the append only mode: when this mode is enabled Redis will append # every write operation received in the file appendonly.log. This file will # be read on startup in order to rebuild the full dataset in memory. # # Note that you can have both the async dumps and the append only file if you # like (you have to comment the "save" statements above to disable the dumps). # Still if append only mode is enabled Redis will load the data from the # log file at startup ignoring the dump.rdb file. # # The name of the append only file is "appendonly.log" # # IMPORTANT: Check the BGREWRITEAOF to check how to rewrite the append # log file in background when it gets too big. appendonly no