Redis%E5%85%A5%E9%97%A8%EF%BC%9A%E5%88%86%E5%B8%83%E5%BC%8F%E5%AD%98%E5%82%A8

要完成数据的分片存储，需要多个redis实例。

1-%E5%A4%9A%E4%B8%AAREDIS%E5%AE%9E%E4%BE%8B

前面的单个redis节点实例的启动时默认配置端口号6379。

配置文件位置：/redis根目录/redis.conf。

修改配置文件，使用vim命令进行编辑：

1.1.1-%E5%86%85%E5%AD%98%E5%88%86%E9%85%8D

一个redis实例默认占用所有物理内存，在实际使用中需要限制大小。这里为了简化操作，不做内存占用的配置，使用默认即可。

从下面这一部分中，就能看出内存配置的方式和配置文件的使用方式，如果要使用配置文件，需要在启动的时候将配置文件作为启动命令的第一个参数。

内存配置写法不同代表的大小也不同。参照11行到16行。

   1 # Redis configuration file example.
   2 #
   3 # Note that in order to read the configuration file, Redis must be
   4 # started with the file path as first argument:
   5 #
   6 # ./redis-server /path/to/redis.conf
   7 
   8 # Note on units: when memory size is needed, it is possible to specify
   9 # it in the usual form of 1k 5GB 4M and so forth:
  10 #
  11 # 1k => 1000 bytes
  12 # 1kb => 1024 bytes
  13 # 1m => 1000000 bytes
  14 # 1mb => 1024*1024 bytes
  15 # 1g => 1000000000 bytes
  16 # 1gb => 1024*1024*1024 bytes
  17 #
  18 # units are case insensitive so 1GB 1Gb 1gB are all the same.
  19

这个版本的配置文件中，绑定IP的示例从60行到62行都是。

  46 ################################## NETWORK #####################################
  47 
  48 # By default, if no "bind" configuration directive is specified, Redis listens
  49 # for connections from all available network interfaces on the host machine.
  50 # It is possible to listen to just one or multiple selected interfaces using
  51 # the "bind" configuration directive, followed by one or more IP addresses.
  52 # Each address can be prefixed by "-", which means that redis will not fail to
  53 # start if the address is not available. Being not available only refers to
  54 # addresses that does not correspond to any network interfece. Addresses that
  55 # are already in use will always fail, and unsupported protocols will always BE
  56 # silently skipped.
  57 #
  58 # Examples:
  59 #
  60 # bind 192.168.1.100 10.0.0.1     # listens on two specific IPv4 addresses
  61 # bind 127.0.0.1 ::1              # listens on loopback IPv4 and IPv6
  62 # bind * -::*                     # like the default, all available interfaces
  63 #
  64 # ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the
  65 # internet, binding to all the interfaces is dangerous and will expose the
  66 # instance to everybody on the internet. So by default we uncomment the
  67 # following bind directive, that will force Redis to listen only on the
  68 # IPv4 and IPv6 (if available) loopback interface addresses (this means Redis
  69 # will only be able to accept client connections from the same host that it is
  70 # running on).
  71 #
  72 # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES
  73 # JUST COMMENT OUT THE FOLLOWING LINE.
  74 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  75 bind 127.0.0.1 -::1
  76

1.1.3-%E4%BF%9D%E6%8A%A4%E6%A8%A1%E5%BC%8F

保护模式不启动，在实际工作中为了安全是要启动的，做测试的过程为了避免麻烦，可以不启动。

配置项在94行，只需要更改值即可，yes表示开启，no表示不开启。

  90 # By default protected mode is enabled. You should disable it only if
  91 # you are sure you want clients from other hosts to connect to Redis
  92 # even if no authentication is configured, nor a specific set of interfaces
  93 # are explicitly listed using the "bind" directive.
  94 protected-mode no

1.1.4-%E9%BB%98%E8%AE%A4%E7%AB%AF%E5%8F%A3

6379是默认端口(要启动其他的redis实例需要修改端口)。

98行为配置信息，port后为要使用的端口号。

  96 # Accept connections on the specified port, default is 6379 (IANA #815344).
  97 # If port 0 is specified Redis will not listen on a TCP socket.
  98 port 6379

1.1.5-%E8%BF%9E%E6%8E%A5%E8%B6%85%E6%97%B6

当客户端空闲时间达到一小时，就会自动断开连接。0秒表示不启用超时配置。

119行为此项目配置内容，此项的配置单位为秒，如果启用配置为对应的秒数即可。

以下为本段配置内容详情，这里本人配置了1分钟：

 118 # Close the connection after a client is idle for N seconds (0 to disable)
 119 # timeout 0
 120 timeout 60

1.1.6-%E5%90%8E%E5%8F%B0%E8%BF%90%E8%A1%8C

daemonize设置成yes让redis服务器启动由守护进程管理，使其后台执行，不占用控制台。其配置在257行。

 252 ################################# GENERAL #####################################
 253 
 254 # By default Redis does not run as a daemon. Use 'yes' if you need it.
 255 # Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
 256 # When Redis is supervised by upstart or systemd, this parameter has no impact.
 257 daemonize yes

对应不同的redis实例，pid的文件名称需要和端口同名。配置在289行。

 277 # If a pid file is specified, Redis writes it where specified at startup
 278 # and removes it at exit.
 279 #
 280 # When the server runs non daemonized, no pid file is created if none is
 281 # specified in the configuration. When the server is daemonized, the pid file
 282 # is used even if not specified, defaulting to "/var/run/redis.pid".
 283 #
 284 # Creating a pid file is best effort: if Redis is not able to create it
 285 # nothing bad happens, the server will start and run normally.
 286 #
 287 # Note that on modern Linux systems "/run/redis.pid" is more conforming
 288 # and should be used instead.
 289 pidfile /var/run/redis_6379.pid

1.1.8-%E6%8C%81%E4%B9%85%E5%8C%96%E8%A7%84%E5%88%99

save 900 1 当900秒以内，至少有1条数据变动，可使flush保存数据到文件。

save 300 10 当300秒以内，至少10条数据变动，保存文件。

save 60 10000 当60秒内，有10000条数据变动，保存文件。

保持默认规则即可，也可按照实际需求进行配置。

本人这里配置了第三种，具体内容如下：

360 ################################ SNAPSHOTTING  ################################
 361 
 362 # Save the DB to disk.
 363 #
 364 # save <seconds> <changes>
 365 #
 366 # Redis will save the DB if both the given number of seconds and the given
 367 # number of write operations against the DB occurred.
 368 #
 369 # Snapshotting can be completely disabled with a single empty string argument
 370 # as in following example:
 371 #
 372 # save ""
 373 #
 374 # Unless specified otherwise, by default Redis will save the DB:
 375 #   * After 3600 seconds (an hour) if at least 1 key changed
 376 #   * After 300 seconds (5 minutes) if at least 100 keys changed
 377 #   * After 60 seconds if at least 10000 keys changed
 378 #
 379 # You can set these explicitly by uncommenting the three following lines.
 380 #
 381 # save 3600 1
 382 # save 300 100
 383 save 60 10000

将刚配置好的配置文件复制2份，分别修改端口号和pid文件名即可。

cp redis.conf redis6380.conf
cp redis.conf redis6381.conf

将拷贝的文件中只修改与端口有关内容port和pid的文件名。

2-%E5%90%AF%E5%8A%A8REDIS%E5%A4%9A%E5%AE%9E%E4%BE%8B

redis-server redis.conf(指定启动文件)

#redis-server redis6380.conf
#redis-server redis6381.conf
#ps -ef|grep redis
root       2822      1  0 15:53 ?        00:00:00 redis-server 127.0.0.1:6379
root       2836      1  0 15:53 ?        00:00:00 redis-server 127.0.0.1:6380
root       2848      1  0 15:53 ?        00:00:00 redis-server 127.0.0.1:6381
root       2868   1697  0 15:53 pts/1    00:00:00 grep --color=auto redis

3-%E7%99%BB%E5%BD%95%E5%AE%A2%E6%88%B7%E7%AB%AF

指定端口登录客户端redis-cli -p [端口号]

#默认登录
[root@lk7 bin]# redis-cli
127.0.0.1:6379> exit
[root@lk7 bin]# redis-cli -p 6379
127.0.0.1:6379> exit
[root@lk7 bin]# redis-cli -p 6380
127.0.0.1:6380> exit
[root@lk7 bin]# redis-cli -p 6381
127.0.0.1:6381> exit

6380和6381会共享6379的dump.db文件，所以不同的节点实例在同一个机器上运行时，可以修改dump.db指定端口文件。

TitanEMS - Titan企业员工管理系统 - JavaWeb期末实践项目

TitanEMS - Titan企业员工管理系统 - JavaWeb期末实践项目

Titan EMS - Titan企业员工管理系统

前端项目介绍：

后端项目介绍：

一、项目设计

二、技术选型

1. Java Web：

2. 数据持久层方面：

3. 安全方面

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐