Redis环境搭建--哨兵模式

Redis环境搭建--主从模式

目录

• 搭建redis-sentinel系统
• 测试

搭建redis-sentinel系统

• 复制配置文件

cp sentinel.conf configs
cd configs

# 哨兵不分主从，配置文件除了端口，其余一致
cp sentinel.conf sentinel27000.conf
cp sentinel.conf sentinel27001.conf
cp sentinel.conf sentinel27002.conf

• 节点配置

protected-mode no
port 27000
daemonize yes
pidfile /var/run/redis-sentinel-27000.pid
logfile /var/log/redis/sentinel-27000.log
sentinel monitor mymaster 127.0.0.1 7000 2
sentinel auth-pass mymaster 123456
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 15000

• 启动

../src/redis-sentinel sentinel27000.conf
../src/redis-sentinel sentinel27001.conf
../src/redis-sentinel sentinel27002.conf

测试

• 故障转移测试

# 停掉主节点
../src/redis-cli -p 7000 -a 123456
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:7000> SHUTDOWN
not connected>

# 登录从节点查看集群状态
../src/redis-cli -p 7001 -a 123456
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:7001> info replication
# Replication
role:master
connected_slaves:1
slave0:ip=127.0.0.1,port=7002,state=online,offset=28228,lag=1
master_replid:420a4b36f142ddb7d4b162cd7662c265a9c63f63
master_replid2:48e78dadeaff69321566ce0c7c9860557c60b66c
master_repl_offset:28375
second_repl_offset:26477
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:28375
127.0.0.1:7001>

../src/redis-cli -p 7002 -a 123456
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:7002> info replication
# Replication
role:slave
master_host:127.0.0.1
master_port:7001
master_link_status:up
master_last_io_seconds_ago:2
master_sync_in_progress:0
slave_repl_offset:32393
slave_priority:100
slave_read_only:1
connected_slaves:0
master_replid:420a4b36f142ddb7d4b162cd7662c265a9c63f63
master_replid2:48e78dadeaff69321566ce0c7c9860557c60b66c
master_repl_offset:32393
second_repl_offset:26477
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1
repl_backlog_histlen:32393
127.0.0.1:7002>