Redis的主从复制配置实验

企鹅博客
企鹅博客
企鹅博客
25193
文章
0
评论
2020年10月5日11:14:44 评论 8 views 3255字阅读10分51秒

环境介绍:
OS:Oracle linux 5.6

redis:redis-2.6.8

master rac1 192.168.2.101

slave rac2 192.168.2.102

下载地址:
http://redis.googlecode.com/files/redis-2.6.8.tar.gz

安装配置redis主从复制
1. 主节点配置
[[email protected] opt] tar zxvf redis-2.6.8.tar.gz

[[email protected] opt] cd redis-2.6.8

[[email protected] redis-2.6.8]# make

[[email protected] redis-2.6.8]# cp src/redis-server /usr/local/bin/

[[email protected] redis-2.6.8]#
cp redis.conf /etc/redis_master.conf

[[email protected] redis-2.6.8]# cat /etc/redis_master.conf

# If port 0 is specified Redis will not listen on a TCP socket.

port 6379 #此端口是redis默认的,可以不改

--复制软件到从节点

[[email protected] opt]# scp -r redis-2.6.8 rac2:/opt

2. 从节点配置
[[email protected] redis-2.6.8]# cp src/redis-server /usr/local/bin/

[[email protected] redis-2.6.8]#
cp redis.conf /etc/redis_slave.conf

# If port 0 is specified Redis will not listen on a TCP socket.

port 6389 #修改为slave节点的自定义端口

# slaveof <masterip> <masterport>

slaveof 192.168.2.101 6379 #此步最关键,添加上master的IP或主机及端口号

3. 启动redis服务
--启动master节点

[[email protected] ~]#
redis-server /etc/redis_master.conf > redis_master.log 2>&1 & #&可以使命令在后台的执行,不影响屏幕使用。

_._

_.-``__ ''-._

_.-`` `. `_. ''-._ Redis 2.6.8 (00000000/0) 64 bit

.-`` .-```. ```\/ _.,_ ''-._

( ' , .-` | `, ) Running in stand alone mode

|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379

| `-._ `._ / _.-' | PID: 477

`-._ `-._ `-./ _.-' _.-'

|`-._`-._ `-.__.-' _.-'_.-'|

| `-._`-._ _.-'_.-' | http://redis.io

`-._ `-._`-.__.-'_.-' _.-'

|`-._`-._ `-.__.-' _.-'_.-'|

| `-._`-._ _.-'_.-' |

`-._ `-._`-.__.-'_.-' _.-'

`-._ `-.__.-' _.-'

`-._ _.-'

`-.__.-'

[477] 12 Mar 16:43:30.319 # Server started, Redis version 2.6.8

[477] 12 Mar 16:43:30.319 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.

[477] 12 Mar 16:43:30.319 * The server is now ready to accept connections on port 6379

[[email protected] ~]# ps -ef|grep redis

root 5930 14334 0 16:56 pts/1 00:00:02 redis-server /etc/redis_master.conf

root 7250 14334 0 17:03 pts/1 00:00:00 grep redis

--启动slave节点

[[email protected] ~]#
redis-server /etc/redis_slave.conf > redis_slave.log 2>&1 &

[1] 32507

[32507] 12 Mar 17:51:55.346 * Max number of open files set to 10032

_._

_.-``__ ''-._

_.-`` `. `_. ''-._ Redis 2.6.8 (00000000/0) 64 bit

.-`` .-```. ```\/ _.,_ ''-._

( ' , .-` | `, ) Running in stand alone mode

|`-._`-...-` __...-.``-._|'` _.-'| Port: 6389

| `-._ `._ / _.-' | PID: 32507

`-._ `-._ `-./ _.-' _.-'

|`-._`-._ `-.__.-' _.-'_.-'|

| `-._`-._ _.-'_.-' | http://redis.io

`-._ `-._`-.__.-'_.-' _.-'

|`-._`-._ `-.__.-' _.-'_.-'|

| `-._`-._ _.-'_.-' |

`-._ `-._`-.__.-'_.-' _.-'

`-._ `-.__.-' _.-'

`-._ _.-'

`-.__.-'

[32507] 12 Mar 17:51:55.350 # Server started, Redis version 2.6.8

[32507] 12 Mar 17:51:55.350 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.

[32507] 12 Mar 17:51:55.350 * The server is now ready to accept connections on port 6389

[32507] 12 Mar 17:51:56.348 * Connecting to MASTER...

[32507] 12 Mar 17:51:56.349 * MASTER <-> SLAVE sync started

[32507] 12 Mar 17:51:56.495 * Non blocking connect for SYNC fired the event.

[32507] 12 Mar 17:51:57.014 * Master replied to PING, replication can continue...

[32507] 12 Mar 17:51:57.028 * MASTER <-> SLAVE sync: receiving 18 bytes from master

[32507] 12 Mar 17:51:57.029 * MASTER <-> SLAVE sync: Loading DB in memory

[32507] 12 Mar 17:51:57.037 * MASTER <-> SLAVE sync: Finished with success

[[email protected] ~]# ps -ef|grep redis

root 321 29770 0 17:54 pts/1 00:00:00 grep redis

root 32507 29770 0 17:51 pts/1 00:00:00 redis-server /etc/redis_slave.conf

继续阅读
NUMA导致的Oracle性能问题 Linux-数据库

NUMA导致的Oracle性能问题

背景简介: Oracle版本:11.2.0.4   OS 版本:OEL5.8 在一次Oracle的Dataguard正常switchover过程中,遇到了一个极其诡异的问题,一条主业务的SQL语句在新...
Oracle中IP地址和掩码转换成CIDR格式 Linux-数据库

Oracle中IP地址和掩码转换成CIDR格式

遇到的问题如下:数据库中存储了IP地址,以及IP地址掩码,需要将他们转化成CIDR格式的,并且不仅仅是将掩码转化成CIDR对应的数字的问题,需要将原有的IP地址转化成对应的网络地址,例如IP地址是58...
匿名

发表评论

匿名网友 填写信息

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen: