Redis database Master-slave replication

Redis Database

I. Installing and configuring Redis

1. Installing Redis

[Email protected] ~]# wget http://download.redis.io/releases/redis-3.2.8.tar.gz

[Email protected] ~]# TAR-ZXVF redis-3.2.8.tar.gz-c/usr/local/src/

[Email protected] ~]# ln-sv/usr/local/src/redis-3.2.8//usr/local/redis

[Email protected] ~]# cd/usr/local/redis/

[[email protected] redis]# ls

00-releasenotes contributing Deps Makefile readme.md redis.conf runtest-cluster sentinel.conf tests

BUGS COPYING INSTALL MANIFESTO redis runtest runtest-sentinel src utils

[[email protected] redis]# make

[[email protected] redis]# make install

[email protected] redis]# CP redis.conf/etc

[Email protected] redis]# vim/etc/redis.conf

Bind 0.0.0.0 #设置redis监听的地址

Daemonize Yes #设置redis以守护进程的方式启动

Dir/redisdb #设置redis缓存数据的目录

LogFile "/redisdb/redis.log"

AppendOnly Yes #开启AOF持久化日志

[Email protected] redis]# Mkdir/redisdb

2. Start Redis

[Email protected] redis]# redis-server/etc/redis.conf

[[Email protected] redis]# PS aux|grep Redis

Root 29198 0.0 0.3 129500 3596? SSL 20:11 0:00 redis-server 0.0.0.0:6379

Root 29202 0.0 0.2 103312 2108 pts/0 s+ 20:12 0:00 grep redis

[Email protected] redis]# Netstat-anptul|grep Redis

TCP 0 0 0.0.0.0:6379 0.0.0.0:* LISTEN 29198/redis-server

2. Stop Redis

[Email protected] redis]# REDIS-CLI shutdown

Second, master-slave replication:

Main: 192.168.1.78-----------------> From: 192.168.1.53

There is nothing to say about the configuration of the master, as above. From the configuration below, from the configuration is also very simple, just need to open slaveof in its configuration file, such as:

Slaveof 192.168.1.78 6379

Masterauth Flux100plat

[Email protected] ~]# grep-v "^#"/etc/redis.conf |grep-v "^$"

Bind 0.0.0.0

Protected-mode Yes

Port 6379

Tcp-backlog 511

Timeout 0

Tcp-keepalive 300

Daemonize Yes

Supervised no

Pidfile/var/run/redis_6379.pid

LogLevel Notice

LogFile ""

Databases 16

Save 900 1

Save 300 10

Save 60 10000

Stop-writes-on-bgsave-error Yes

Rdbcompression Yes

Rdbchecksum Yes

Dbfilename Dump.rdb

Dir/redisdb

Slaveof 192.168.1.78 6379

Masterauth Flux100plat

Slave-serve-stale-data Yes

Slave-read-only Yes

Repl-diskless-sync No

Repl-diskless-sync-delay 5

Repl-disable-tcp-nodelay No

Slave-priority 100

AppendOnly Yes

Appendfilename "Appendonly.aof"

Appendfsync everysec

No-appendfsync-on-rewrite No

Auto-aof-rewrite-percentage 100

Auto-aof-rewrite-min-size 64MB

aof-load-truncated Yes

Lua-time-limit 5000

Slowlog-log-slower-than 10000

Slowlog-max-len 128

Latency-monitor-threshold 0

Notify-keyspace-events ""

Hash-max-ziplist-entries 512

Hash-max-ziplist-value 64

List-max-ziplist-size-2

List-compress-depth 0

Set-max-intset-entries 512

Zset-max-ziplist-entries 128

Zset-max-ziplist-value 64

Hll-sparse-max-bytes 3000

activerehashing Yes

Client-output-buffer-limit Normal 0 0 0

Client-output-buffer-limit slave 256MB 64MB 60

Client-output-buffer-limit pubsub 32MB 8MB 60

Hz 10

Aof-rewrite-incremental-fsync Yes

Then restart:

[Email protected] redis]# REDIS-CLI shutdown

[Email protected] redis]# redis-server/etc/redis.conf

To view the configuration:

[Email protected] ~]# REDIS-CLI

127.0.0.1:6379> INFO Replication

# Replication

Role:slave

master_host:192.168.1.78

master_port:6379

Master_link_status:up

Master_last_io_seconds_ago:6

master_sync_in_progress:0

slave_repl_offset:57

slave_priority:100

Slave_read_only:1

connected_slaves:0

master_repl_offset:0

repl_backlog_active:0

repl_backlog_size:1048576

repl_backlog_first_byte_offset:0

repl_backlog_histlen:0

127.0.0.1:6379> Scan 0

1) "128"

2) 1) "1386229"

2) "1529562"

3) "1377317"

4) "1886250"

5) "1381493"

6) "1889670"

7) "1365620"

8) "1377610"

9) "1377173"

10) "1515178"

---------------------can see that the data is synchronized.

In the Lord View:

[Email protected] ~]# REDIS-CLI

127.0.0.1:6379> Auth Flux100plat

Ok

127.0.0.1:6379> Info Replication

# Replication

Role:master

Connected_slaves:1

Slave0:ip=192.168.1.53,port=6379,state=online,offset=1289,lag=1

master_repl_offset:1289

Repl_backlog_active:1

repl_backlog_size:1048576

Repl_backlog_first_byte_offset:2

repl_backlog_histlen:1288

Execute the following command from the library:

slaveof 192.168.1.78 3789 Masterauth Flux100plat

You can also perform synchronous operations

Slaveof no one interrupts replication

This article is from the "Linunx" blog, please be sure to keep this source http://lijianmin2008.blog.51cto.com/621678/1925098

Redis database Master-slave replication