通过key["xx"]直接获取 info: # Server redis_version:4.0.11 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:4b1fcccca6e8040b redis_mode:standalone os:Linux 2.6.32-642.el6.x86_64 x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:sync-builtin gcc_version:4.4.7 process_id:21895 run_id:ee4c85f05da5aa09e5916eeb571d8822d5d9ed35 tcp_port:27023 uptime_in_seconds:86822734 uptime_in_days:1004 hz:10 lru_clock:1341849 executable:/home/xxx/redis-server config_file:/tmp.conf # Clients connected_clients:36 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:17 # Memory used_memory:12432808 used_memory_human:11.86M used_memory_rss:22921216 used_memory_rss_human:21.86M used_memory_peak:25306112 used_memory_peak_human:24.13M used_memory_peak_perc:49.13% used_memory_overhead:11995374 used_memory_startup:786528 used_memory_dataset:437434 used_memory_dataset_perc:3.76% total_system_memory:8254570496 total_system_memory_human:7.69G used_memory_lua:37888 used_memory_lua_human:37.00K maxmemory:268435456 maxmemory_human:256.00M maxmemory_policy:volatile-lru mem_fragmentation_ratio:1.84 mem_allocator:jemalloc-4.0.3 active_defrag_running:0 lazyfree_pending_objects:0 # Persistence loading:0 rdb_changes_since_last_save:3182887 rdb_bgsave_in_progress:0 rdb_last_save_time:1640670601 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 rdb_last_cow_size:4714496 aof_enabled:1 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:0 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_last_cow_size:4661248 aof_current_size:45472028 aof_base_size:6617 aof_pending_rewrite:0 aof_buffer_length:0 aof_rewrite_buffer_length:0 aof_pending_bio_fsync:0 aof_delayed_fsync:579 # Stats total_connections_received:6339915 total_commands_processed:727862031 instantaneous_ops_per_sec:12 total_net_input_bytes:55293516593 total_net_output_bytes:250841368254 instantaneous_input_kbps:0.49 instantaneous_output_kbps:4.72 rejected_connections:0 sync_full:1 sync_partial_ok:0 sync_partial_err:1 expired_keys:74 expired_stale_perc:0.00 expired_time_cap_reached_count:0 evicted_keys:0 keyspace_hits:1584973 keyspace_misses:138809 pubsub_channels:3 pubsub_patterns:2 latest_fork_usec:1290 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:1 slave0:ip=10.88.27.177,port=27021,state=online,offset=30528115729,lag=0 master_replid:91075bf672b2442121934fc5d870fd6052d04427 master_replid2:f8a3e915b77a895d6af5de9d1df4a63e49dba3cc master_repl_offset:30528115729 second_repl_offset:29135280300 repl_backlog_active:1 repl_backlog_size:10000000 repl_backlog_first_byte_offset:30518115730 repl_backlog_histlen:10000000 # CPU used_cpu_sys:61603.61 used_cpu_user:39983.96 used_cpu_sys_children:0.35 used_cpu_user_children:0.18 # Cluster cluster_enabled:0 # Keyspace db2:keys=12,expires=0,avg_ttl=0 */.

通过key["xx"]["yy"]直接获取，或者通过二级key[xx]获取一组对象 info: # Server redis_version:4.0.11 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:4b1fcccca6e8040b redis_mode:standalone os:Linux 2.6.32-642.el6.x86_64 x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:sync-builtin gcc_version:4.4.7 process_id:21895 run_id:ee4c85f05da5aa09e5916eeb571d8822d5d9ed35 tcp_port:27023 uptime_in_seconds:86822734 uptime_in_days:1004 hz:10 lru_clock:1341849 executable:/home/xxx/redis-server config_file:/tmp.conf # Clients connected_clients:36 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:17 # Memory used_memory:12432808 used_memory_human:11.86M used_memory_rss:22921216 used_memory_rss_human:21.86M used_memory_peak:25306112 used_memory_peak_human:24.13M used_memory_peak_perc:49.13% used_memory_overhead:11995374 used_memory_startup:786528 used_memory_dataset:437434 used_memory_dataset_perc:3.76% total_system_memory:8254570496 total_system_memory_human:7.69G used_memory_lua:37888 used_memory_lua_human:37.00K maxmemory:268435456 maxmemory_human:256.00M maxmemory_policy:volatile-lru mem_fragmentation_ratio:1.84 mem_allocator:jemalloc-4.0.3 active_defrag_running:0 lazyfree_pending_objects:0 # Persistence loading:0 rdb_changes_since_last_save:3182887 rdb_bgsave_in_progress:0 rdb_last_save_time:1640670601 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 rdb_last_cow_size:4714496 aof_enabled:1 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:0 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_last_cow_size:4661248 aof_current_size:45472028 aof_base_size:6617 aof_pending_rewrite:0 aof_buffer_length:0 aof_rewrite_buffer_length:0 aof_pending_bio_fsync:0 aof_delayed_fsync:579 # Stats total_connections_received:6339915 total_commands_processed:727862031 instantaneous_ops_per_sec:12 total_net_input_bytes:55293516593 total_net_output_bytes:250841368254 instantaneous_input_kbps:0.49 instantaneous_output_kbps:4.72 rejected_connections:0 sync_full:1 sync_partial_ok:0 sync_partial_err:1 expired_keys:74 expired_stale_perc:0.00 expired_time_cap_reached_count:0 evicted_keys:0 keyspace_hits:1584973 keyspace_misses:138809 pubsub_channels:3 pubsub_patterns:2 latest_fork_usec:1290 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:1 slave0:ip=10.88.27.177,port=27021,state=online,offset=30528115729,lag=0 master_replid:91075bf672b2442121934fc5d870fd6052d04427 master_replid2:f8a3e915b77a895d6af5de9d1df4a63e49dba3cc master_repl_offset:30528115729 second_repl_offset:29135280300 repl_backlog_active:1 repl_backlog_size:10000000 repl_backlog_first_byte_offset:30518115730 repl_backlog_histlen:10000000 # CPU used_cpu_sys:61603.61 used_cpu_user:39983.96 used_cpu_sys_children:0.35 used_cpu_user_children:0.18 # Cluster cluster_enabled:0 # Keyspace db2:keys=12,expires=0,avg_ttl=0 */.