Redis' performance indicators and monitoring methods

Redis The performance index of 、 Monitoring mode

1. Performance index classification

1. Performance indicators ：Performance
2. Memory metrics ：Memory
3. Basic activity indicators ：Basic activity
4. Persistence index ：Persistence
5. Error indicators ：Error

2.Performance

Low cache hit rate means that the server will be under great pressure ;
key The expiration time of will have a little impact on the cache hit rate

3.Memory

4.Basic activity

5.Persistence

6.Error

7. Monitoring mode

Tools （ Need to install ）
1.Cloud Insight Redis
2.Prometheus
3.Redis-stat
4.Redis-faina
5.RedisLive
6.zabbix

command （redis These commands provided for us ）
1.benchmark
2.redis cli
1)monitor
2)showlog

8.benchmark

command

redis-benchmark [-h ] [-p ] [-c ] [-n <requests]> [-k ]

Example 1
explain ： By default ,50 A connection ,10000 The corresponding performance of the second request

redis-benchmark

Example 2
explain ：100 A connection ,5000 The corresponding performance of the second request

redis-benchmark -c 100 -n 5000

9.monitor

The order is as follows , Used to print server debugging information

monitor

10.showlog

command
get ： Get slow query log
len ： Get the number of slow query log entries
reset ： Reset slow query log

showlog [operator]

Related configuration
slowlog-log-slower-than 1000 # Set the offline time for slow query , Company ： subtle
slowlog-max-len 100 # Set the log display length corresponding to the slow query command , Company ： Number of orders

11. demonstration (benchmark)

No use redis It can be operated in the client

12. demonstration (monitor)

Must enter redis client .
send out hello

13.showlog

Because we didn't execute too many instructions , Or an instruction doesn't take much time , So what we found is empty