Redis 服务器
Redis 服务器命令主要是用于管理redis服务。
实例文章源自小柒网-https://www.yangxingzhen.cn/7013.html
以下实例演示了如何获取redis服务器的统计信息:文章源自小柒网-https://www.yangxingzhen.cn/7013.html
[root@localhost ~]# redis-cli文章源自小柒网-https://www.yangxingzhen.cn/7013.html
127.0.0.1:6379> info文章源自小柒网-https://www.yangxingzhen.cn/7013.html
# Server文章源自小柒网-https://www.yangxingzhen.cn/7013.html
redis_version:5.0.7文章源自小柒网-https://www.yangxingzhen.cn/7013.html
redis_git_sha1:00000000文章源自小柒网-https://www.yangxingzhen.cn/7013.html
redis_git_dirty:0文章源自小柒网-https://www.yangxingzhen.cn/7013.html
redis_build_id:743b8244b8e27193文章源自小柒网-https://www.yangxingzhen.cn/7013.html
redis_mode:standalone文章源自小柒网-https://www.yangxingzhen.cn/7013.html
os:Linux 3.10.0-693.el7.x86_64 x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:4.8.5
process_id:8153
run_id:72ee9108ccfa7ea74bcf41c9b7575f327c3d64fd
tcp_port:6379
uptime_in_seconds:65985
uptime_in_days:0
hz:10
configured_hz:10
lru_clock:12275032
executable:/usr/local/redis/redis-server
config_file:/usr/local/redis/redis.conf
# Clients
connected_clients:1
client_recent_max_input_buffer:2
client_recent_max_output_buffer:0
blocked_clients:0
# Memory
used_memory:855648
used_memory_human:835.59K
used_memory_rss:4173824
used_memory_rss_human:3.98M
used_memory_peak:874960
used_memory_peak_human:854.45K
used_memory_peak_perc:97.79%
used_memory_overhead:841904
used_memory_startup:791392
used_memory_dataset:13744
used_memory_dataset_perc:21.39%
allocator_allocated:1295824
allocator_active:1576960
allocator_resident:12136448
total_system_memory:1040953344
total_system_memory_human:992.73M
used_memory_lua:40960
used_memory_lua_human:40.00K
used_memory_scripts:152
used_memory_scripts_human:152B
number_of_cached_scripts:1
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
allocator_frag_ratio:1.22
allocator_frag_bytes:281136
allocator_rss_ratio:7.70
allocator_rss_bytes:10559488
rss_overhead_ratio:0.34
rss_overhead_bytes:-7962624
mem_fragmentation_ratio:5.13
mem_fragmentation_bytes:3360176
mem_not_counted_for_evict:322
mem_replication_backlog:0
mem_clients_slaves:0
mem_clients_normal:49694
mem_aof_buffer:322
mem_allocator:jemalloc-5.1.0
active_defrag_running:0
lazyfree_pending_objects:0
# Persistence
loading:0
rdb_changes_since_last_save:4
rdb_bgsave_in_progress:0
rdb_last_save_time:1589332535
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:0
rdb_current_bgsave_time_sec:-1
rdb_last_cow_size:294912
aof_enabled:1
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
aof_last_cow_size:0
aof_current_size:1945
aof_base_size:0
aof_pending_rewrite:0
aof_buffer_length:0
aof_rewrite_buffer_length:0
aof_pending_bio_fsync:0
aof_delayed_fsync:0
# Stats
total_connections_received:23
total_commands_processed:112
instantaneous_ops_per_sec:0
total_net_input_bytes:3907
total_net_output_bytes:269171
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.00
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
expired_stale_perc:0.00
expired_time_cap_reached_count:0
evicted_keys:0
keyspace_hits:14
keyspace_misses:3
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:354
migrate_cached_sockets:0
slave_expires_tracked_keys:0
active_defrag_hits:0
active_defrag_misses:0
active_defrag_key_hits:0
active_defrag_key_misses:0
# Replication
role:master
connected_slaves:0
master_replid:c6b33e7fa147d50f8e1b1c7c774c3e8b47f6919d
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:0
second_repl_offset:-1
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0
# CPU
used_cpu_sys:37.448751
used_cpu_user:44.879583
used_cpu_sys_children:0.020942
used_cpu_user_children:0.001411
# Cluster
cluster_enabled:0
# Keyspace
db0:keys=7,expires=0,avg_ttl=0
Redis 服务器命令
下表列出了redis服务器的相关命令:
序号 |
命令及描述 |
1 | BGREWRITEAOF 异步执行一个 AOF(AppendOnly File) 文件重写操作 |
2 | BGSAVE 在后台异步保存当前数据库的数据到磁盘 |
3 | CLIENT KILL [ip:port] [ID client-id] 关闭客户端连接 |
4 | CLIENT LIST 获取连接到服务器的客户端连接列表 |
5 | CLIENT GETNAME 获取连接的名称 |
6 | CLIENT PAUSE timeout 在指定时间内终止运行来自客户端的命令 |
7 | CLIENT SETNAME connection-name 设置当前连接的名称 |
8 | CLUSTER SLOTS 获取集群节点的映射数组 |
9 | COMMAND 获取 Redis 命令详情数组 |
10 | COMMAND COUNT 获取 Redis 命令总数 |
11 | COMMAND GETKEYS 获取给定命令的所有键 |
12 | TIME 返回当前服务器时间 |
13 | COMMAND INFO command-name [command-name ...] 获取指定 Redis 命令描述的数组 |
14 | CONFIG GET parameter 获取指定配置参数的值 |
15 | CONFIG REWRITE 对启动 Redis 服务器时所指定的 redis.conf 配置文件进行改写 |
16 | CONFIG SET parameter value 修改 redis 配置参数,无需重启 |
17 | CONFIG RESETSTAT 重置 INFO 命令中的某些统计数据 |
18 | DBSIZE 返回当前数据库的 key 的数量 |
19 | DEBUG OBJECT key 获取 key 的调试信息 |
20 | DEBUG SEGFAULT 让 Redis 服务崩溃 |
21 | FLUSHALL 删除所有数据库的所有key |
22 | FLUSHDB 删除当前数据库的所有key |
23 | INFO [section] 获取 Redis 服务器的各种信息和统计数值 |
24 | LASTSAVE 返回最近一次 Redis 成功将数据保存到磁盘上的时间,以 UNIX 时间戳格式表示 |
25 | MONITOR 实时打印出 Redis 服务器接收到的命令,调试用 |
26 | ROLE 返回主从实例所属的角色 |
27 | SAVE 同步保存数据到硬盘 |
28 | SHUTDOWN [NOSAVE] [SAVE] 异步保存数据到硬盘,并关闭服务器 |
29 | SLAVEOF host port 将当前服务器转变为指定服务器的从属服务器(slave server) |
30 | SLOWLOG subcommand [argument] 管理 redis 的慢日志 |
31 |
SYNC |
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