redis监控状态connect命令

1、redis-benchmark   
redis基准信息，redis服务器性能检测

redis-benchmark -h localhost -p 6379 -c 100 -n 100000   
100个并发连接，100000个请求，检测host为localhost 端口为6379的redis服务器性能

Java代码   

1. [root@Architect redis-1.2.6]# redis-benchmark -h localhost -p 6379 -c 100 -n 100000
2. ====== PING ======
3. 10001 requests completed in 0.41 seconds
4. 50 parallel clients
5. 3 bytes payload
6. keep alive: 1
7. 0.01% <= 0 milliseconds
8. 23.09% <= 1 milliseconds
9. 85.82% <= 2 milliseconds
10. 95.60% <= 3 milliseconds
11. 97.20% <= 4 milliseconds
12. 97.96% <= 5 milliseconds
13. 98.83% <= 6 milliseconds
14. 99.41% <= 7 milliseconds
15. 99.70% <= 8 milliseconds
16. 99.99% <= 9 milliseconds
17. 100.00% <= 12 milliseconds
18. 24274.27 requests per second

2、redis-cli

redis-cli -h localhost -p 6380 monitor   
Dump all the received requests in real time; 
监控host为localhost，端口为6380，redis的连接及读写操作

Java代码   

1. [root@Architect redis-1.2.6]# redis-cli -h localhost -p 6380 monitor
2. +OK
3. +1289800615.808225 "monitor"
4. +1289800615.839079 "GET" "name"
5. +1289800615.853694 "PING"
6. +1289800615.853783 "PING"
7. +1289800615.854646 "PING"
8. +1289800615.854974 "PING"
9. +1289800615.857693 "PING"
10. +1289800615.866862 "PING"
11. +1289800615.871944 "PING"

redis-cli -h localhost -p 6380 info   
Provide information and statistics about the server ; 
提供host为localhost，端口为6380，redis服务的统计信息

Java代码   

1. [root@Architect redis-1.2.6]# redis-cli -h localhost -p 6380 info
2. redis_version:2.0.4
3. redis_git_sha1:00000000
4. redis_git_dirty:0
5. arch_bits:32
6. multiplexing_api:epoll
7. process_id:21990
8. uptime_in_seconds:490580
9. uptime_in_days:5
10. connected_clients:103
11. connected_slaves:0
12. blocked_clients:0
13. used_memory:4453240
14. used_memory_human:4.25M
15. changes_since_last_save:200
16. bgsave_in_progress:0
17. last_save_time:1290394640
18. bgrewriteaof_in_progress:0
19. total_connections_received:809
20. total_commands_processed:44094018
21. expired_keys:0
22. hash_max_zipmap_entries:64
23. hash_max_zipmap_value:512
24. pubsub_channels:0
25. pubsub_patterns:0
26. vm_enabled:0
27. role:slave
28. master_host:localhost
29. master_port:6379
30. master_link_status:up
31. master_last_io_seconds_ago:18
32. db0:keys=1319,expires=0

3、redis-stat

redis-stat host localhost port 6380 overview   
Print general information about a Redis instance; 
实时打印出host为localhost，端口为6380，redis实例的总体信息

Java代码   

1. [root@Architect redis-1.2.6]# redis-stat port 6380 overview
2. ------- data ------ ------------ load ----------------------------- - childs -
3. keys      used-mem  clients   requests            connections
4. 1319      5.37M     103       44108021 (+44108021) 810
5. 1319      5.38M     103       44108124 (+103)     810
6. 1319      5.38M     103       44108225 (+101)     810
7. 1319      5.39M     103       44108326 (+101)     810
8. 1319      5.40M     103       44108427 (+101)     810
9. 1319      5.41M     103       44108528 (+101)     810

redis-stat host localhost port 6380 overview   
Measure Redis server latency; 
输出host为localhost，端口为6380，redis服务中每个请求的响应时长

Java代码   

1. [root@Architect redis-1.2.6]# redis-stat port 6380 latency
2. 1: 0.16 ms
3. 2: 0.11 ms
4. 3: 0.15 ms
5. 4: 0.11 ms
6. 5: 0.18 ms
7. 6: 0.14 ms