redis主从复制

info replication 打印主从复制的相关信息

slaveof ip port 成为某个实例的从服务器

一主二从 关闭aof，使用rdb

drwxrwxr-x 2 gdut17 gdut17 4096 10月 4 17:38 ./ drwxrwxr-x 9 gdut17 gdut17 4096 10月 4 17:39 ../ -rw-rw-r-- 1 gdut17 gdut17 113 10月 4 17:38 redis9000.conf -rw-rw-r-- 1 gdut17 gdut17 137 10月 4 17:38 redis9001.conf -rw-rw-r-- 1 gdut17 gdut17 137 10月 4 17:38 redis9002.conf gdut17@ubuntu:~/redis-6.0.8/temp$ gdut17@ubuntu:~/redis-6.0.8/temp$ cat redis900*.conf include /home/gdut17/redis-6.0.8/redis.conf pidfile "/var/run/redis_9000.pid" port 9000 dbfilename "dump9000.rdb" include /home/gdut17/redis-6.0.8/redis.conf pidfile "/var/run/redis_9001.pid" port 9001 dbfilename "dump9001.rdb" slaveof 127.0.0.1 9000 include /home/gdut17/redis-6.0.8/redis.conf pidfile "/var/run/redis_9002.pid" port 9002 dbfilename "dump9002.rdb" slaveof 127.0.0.1 9000

src/redis-server ./temp/redis9000.conf 分别跑起来

主结点

gdut17@ubuntu:~/redis-6.0.8$ ./src/redis-cli -p 9000 127.0.0.1:9000> info repliaction 127.0.0.1:9000> info replication # Replication role:master connected_slaves:2 slave0:ip=127.0.0.1,port=9001,state=online,offset=56,lag=0 slave1:ip=127.0.0.1,port=9002,state=online,offset=56,lag=0 master_replid:4b8093a40bf4765f47c49bc46c173375e9cda087 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:56 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:56

从结点

127.0.0.1:9001> info replication # Replication role:slave master_host:127.0.0.1 master_port:9000 master_link_status:up master_last_io_seconds_ago:6 master_sync_in_progress:0 slave_repl_offset:98 slave_priority:100 slave_read_only:1 connected_slaves:0 master_replid:4b8093a40bf4765f47c49bc46c173375e9cda087 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:98 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:98 127.0.0.1:9002> info replication # Replication role:slave master_host:127.0.0.1 master_port:9000 master_link_status:up master_last_io_seconds_ago:2 master_sync_in_progress:0 slave_repl_offset:140 slave_priority:100 slave_read_only:1 connected_slaves:0 master_replid:4b8093a40bf4765f47c49bc46c173375e9cda087 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:140 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:15 repl_backlog_histlen:126