Redis 5 : Basic Operation for Server2021/05/28 |
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This is the Basic Usage of Redis with [redis-cli] client program.
Following examples are basic one, you can see more commands on Official Site below.
⇒ https://redis.io/commands |
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| [1] | Connect to Redis Server like follows. |
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# connect to local Redis server [root@www ~]# redis-cli # authenticate ⇒ specify [password] you set in [redis.conf] 127.0.0.1:6379> auth password OK # exit from connection 127.0.0.1:6379> quit # connect with password and database ID # -a [password] -n [database ID] # -a [password] on terminal is not safe, so warnings is shown # if database ID is not specified, connect to database ID [0] [root@www ~]# redis-cli -a password -n 1 Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe. # if not display auth warnings above, add [--no-auth-warning] option [root@www ~]# redis-cli -a password -n 1 --no-auth-warning # change to Database-ID [2] 127.0.0.1:6379[1]> select 2 OK 127.0.0.1:6379[2]> # to connect to Redis on another Host, specify [-h (hostname)] [root@www ~]# redis-cli -h node01.srv.world node01.srv.world:6379> # possible to get results with non-interactively with [redis-cli] # for example, set and get Value of a Key [root@www ~]# redis-cli -a password --no-auth-warning set key01 value01 [root@www ~]# redis-cli -a password --no-auth-warning get key01 "value01" |
| [2] | This is the basic Usage of control Redis Server itself. |
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[root@www ~]#
redis-cli 127.0.0.1:6379> auth password OK # refer to statics 127.0.0.1:6379> info # Server redis_version:5.0.3 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:28849dbea6f07cc8 redis_mode:standalone os:Linux 4.18.0-305.el8.x86_64 x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:atomic-builtin ..... ..... # show connected clients now 127.0.0.1:6379> client list id=18 addr=127.0.0.1:48196 fd=7 name= age=106 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=26 qbuf-free=32742 obl=0 oll=0 omem=0 events=r cmd=client id=19 addr=10.0.0.51:45752 fd=8 name= age=9 idle=5 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 obl=0 oll=0 omem=0 events=r cmd=auth # kill connection of a client 127.0.0.1:6379> client kill 10.0.0.51:45752 OK # dump all requests after the command below 127.0.0.1:6379> monitor OK 1469078099.850114 [0 10.0.0.51:43666] "get" "key01" 1469078112.319154 [0 10.0.0.51:43666] "set" "key02" "value02" ..... ..... # save data on disk on foreground 127.0.0.1:6379> save OK # save data on disk on background 127.0.0.1:6379> bgsave Background saving started # get UNIX time stamp of the last save to disk 127.0.0.1:6379> lastsave (integer) 1622101784 # save data on disk and shutdown Redis 127.0.0.1:6379> shutdown not connected> quit [root@www ~]# ps aux | grep [r]edis |
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