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redis取info

生活百科redis取info

导读：Redis是一种开源的内存数据结构存储系统，它支持多种数据结构 ， 如字符串、哈希表、列表等 。在实际应用中，我们需要对Redis的状态进行监控和分析，这时我们就需要使用Redis提供的info命令来获取Redis的各种状态信息 。
1. info命令的基本用法
我们可以通过redis-cli工具或者telnet连接到Redis服务器，然后执行info命令来获取Redis的各种状态信息 。例如：
```
$ redis-cli
127.0.0.1:6379> info
2. info命令返回的信息内容
info命令返回的信息内容非常丰富，包括了Redis的各种状态信息，如服务器信息、客户端信息、内存信息、统计信息等 。下面是info命令返回信息的一部分：
# Server
redis_version:5.0.7
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:6f8a7d1c5b0e3b6e
redis_mode:standalone
os:Linux 4.15.0-65-generic x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:7.4.0
process_id:1
run_id:9a4ed0a47f26c5b9c58c0bc9a3e9c5e69e4f4064
tcp_port:6379
uptime_in_seconds:1317
uptime_in_days:0
hz:10
configured_hz:10
lru_clock:11187926
executable:/data/redis-server
config_file:/etc/redis.conf
# Clients
connected_clients:1
client_recent_max_input_buffer:2
client_recent_max_output_buffer:0
blocked_clients:0
# Memory
used_memory:1011984
used_memory_human:988.54K
used_memory_rss:2146304
used_memory_rss_human:2.05M
used_memory_peak:1048576
used_memory_peak_human:1024.00K
used_memory_peak_perc:96.44%
used_memory_overhead:981808
used_memory_startup:986704
used_memory_dataset:306176
used_memory_dataset_perc:47.58%
allocator_allocated:1012024
allocator_active:1056768
allocator_resident:2146304
total_system_memory:16777216000
total_system_memory_human:15.63G
used_memory_lua:37888
used_memory_lua_human:37.00K
used_memory_scripts:0
used_memory_scripts_human:0B
number_of_cached_scripts:0
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
allocator_frag_ratio:1.04
allocator_frag_bytes:44744
allocator_rss_ratio:2.03
allocator_rss_bytes:1085440
rss_overhead_ratio:1.00
rss_overhead_bytes:-8192
mem_fragmentation_ratio:2.12
mem_fragmentation_bytes:1134320
mem_not_counted_for_evict:0
mem_replication_backlog:0
mem_clients_slaves:0
mem_clients_normal:43616
mem_aof_buffer:0
mem_allocator:jemalloc-5.1.0
active_defrag_running:0
lazyfree_pending_objects:0
# Persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1574326209
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:-1
rdb_current_bgsave_time_sec:-1
rdb_last_cow_size:0
aof_enabled:0
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
# Stats
total_connections_received:2
total_commands_processed:3
instantaneous_ops_per_sec:0
total_net_input_bytes:38
total_net_output_bytes:2204
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
evicted_keys:0
keyspace_hits:0
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0
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:79c5d7f6e966c0e4f8f9a1c9b3b3924b08f5a5d6
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:0.13
used_cpu_user:0.06
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
【redis取info】# Cluster

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