Prometheus监控Redis

redis-exporter监控Redis

一、单节点监控

#启动，密码带特殊字符时需要用\进行转义
docker run -dit -p 9121:9121 -e REDIS_ADDR=IP:6379 -e REDIS_PASSWORD=password --name=redis-exporter redis-exporter:v1.27.0-arm64

docker logs --tail=100
##以下日志表明已经正确连接到redis
time="2020-08-02T13:46:50+08:00" level=info msg="Redis Metrics Exporter v1.9.0    build date: 2020-07-07-02:25:01    sha1: 3e15a27ef8657e77100a55f10895e1a4fee70f79    Go: go1.14.4    GOOS: linux    GOARCH: amd64"
time="2020-08-02T13:46:50+08:00" level=info msg="Providing metrics at :9121/metrics"



##若出现以下日志，redis未正确连接。考虑查看redis.conf 的bind参数是否与redis—exporter中的redis.addr参数一致
time="2020-08-02T13:46:24+08:00" level=error msg="Couldn't connect to redis instance"

修改prometheus.yml

- job_name: redis_exporter
    static_configs:
    - targets: ['192.168.100.104:9121']

二、集群监控

https://www.cnblogs.com/fsckzy/p/12053604.html

启动一个redis-exporter即可，prometheus.yml按照如下配置。

- job_name: 'redis_exporter_targets'
    static_configs:
      - targets:
        - redis://10.1.1.101:6379
        - redis://10.1.1.101:6380
        - redis://10.1.1.102:6379
        - redis://10.1.1.102:6380
        labels:
          region: QWE  #添加标签
          project: QAZ
    metrics_path: /scrape
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 192.168.1.101:9122

  - job_name: 'Redis-exporter监控'
    metrics_path: '/metrics'
    static_configs:
    - targets: ['172.16.45.8:9121']