Redis 7 : Basic Operation for Server2024/06/11 |
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. |
# connect to local Redis server root@dlp:~# 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@dlp:~# 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@dlp:~# 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]> quit # to connect to Redis on another Host, specify [-h (hostname)] root@dlp:~# 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@dlp:~# redis-cli -a password --no-auth-warning set key01 value01 root@dlp:~# redis-cli -a password --no-auth-warning get key01 "value01" |
[2] | This is the basic Usage of control Redis Server itself. |
root@dlp:~#
redis-cli 127.0.0.1:6379> auth password OK # refer to statics 127.0.0.1:6379> info # Server redis_version:7.0.15 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:d81b8ff71cfb150e redis_mode:standalone os:Linux 6.8.0-35-generic x86_64 arch_bits:64 monotonic_clock:POSIX clock_gettime multiplexing_api:epoll atomicvar_api:c11-builtin gcc_version:13.2.0 process_id:1670 process_supervised:systemd run_id:c940a47e137ebea6ecde5a42e64e424f3b21468e tcp_port:6379 server_time_usec:1718064663619237 uptime_in_seconds:303 uptime_in_days:0 hz:10 configured_hz:10 lru_clock:6788631 executable:/usr/bin/redis-server config_file:/etc/redis/redis.conf io_threads_active:0 # Clients connected_clients:1 cluster_connections:0 maxclients:10000 client_recent_max_input_buffer:20480 client_recent_max_output_buffer:0 blocked_clients:0 tracking_clients:0 clients_in_timeout_table:0 ..... ..... # show connected clients now 127.0.0.1:6379> client list id=3 addr=10.0.0.51:57774 laddr=10.0.0.30:6379 fd=8 name= age=17 idle=17 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=0 argv-mem=0 multi-mem=0 rbs=1024 rbp=0 obl=0 oll=0 omem=0 tot-mem=1800 events=r cmd=command user=default redir=-1 resp=2 id=4 addr=127.0.0.1:35764 laddr=127.0.0.1:6379 fd=9 name= age=11 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=26 qbuf-free=20448 argv-mem=10 multi-mem=0 rbs=1024 rbp=0 obl=0 oll=0 omem=0 tot-mem=22298 events=r cmd=client|list user=default redir=-1 resp=2 # kill connection of a client 127.0.0.1:6379> client kill 10.0.0.51:57774 OK # dump all requests after the command below 127.0.0.1:6379> monitor OK 1718064847.746066 [0 10.0.0.51:46744] "auth" "(redacted)" 1718064862.052344 [0 10.0.0.51:46744] "set" "key01" "value01" ..... ..... # 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) 1718064934 |
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