Prometheus + redis exporter + grafana monitor redis service

prometheus Configuration file modification

cat /data/prometheus/prometheus.yml
  - job_name: redis_exporter
    static_configs:
    - targets: ['zunshang:9121','luodiyezhu:9122','luodiyebei:9121','guojing:9121','dingdan:9121','guanggao:9121']
    relabel_configs:
      - source_labels: [ "__address__" ]
        regex: "(.*):(.*)"
        target_label: "instance"
        replacement: $1

Deploy redis-exporter Check my other articles , This process is not exhaustive .

Reload prometheus The configuration file

grafana Monitoring configuration

redis Template download

redis-exporter Query details

1. Inquire about redis Instance memory usage

100 * (redis_memory_used_bytes{
    instance=~"$node"}  / redis_config_maxmemory{
    instance=~"$node"} )

redis_memory_used_bytes: redis Bytes used
redis_config_maxmemory: redis The maximum memory bytes used in the configuration file ( Give memory configuration according to the memory size of the server ) The default is 0 There is no limit to

redis Instance memory usage ： Use memory space / redis Maximum memory space of configuration file if 0 That's infinity

2. Query client connection redis Number of instances

redis_connected_clients{
    instance=~"$node"}

3. perform redis The rate of commands

irate(redis_commands_processed_total{
    instance=~"$node"}[5m])

4. redis Command and miss rate

A irate(redis_keyspace_hits_total{
    instance=~"$node"}[5m])   hit 
B irate(redis_keyspace_misses_total{
    instance=~"$node"}[5m])  Not hit 

5. redis All libraries in key Total of

sum (redis_db_keys{
    instance=~"$node"}) by (instance)

6. redis Permanent in Library key The number of

sum(redis_db_keys{
    instance=~"$node"})by (instance) - sum(redis_db_keys_expiring{
    instance=~"$node"}) by (instance)

7. redis There is an expiration time in key The number of

sum(redis_db_keys_expiring{
    instance=~"$node"}) by (instance)

8. Be overdue keys Rate

rate(redis_expired_keys_total{
    instance=~"$node"}[5m])

Please refer to node-exporter Deploy