用Prometheus监控Redis 的时候，发现redis_exporter不能对redis里面的队列（list)长度进行监控，Google了一下，发现官网也没有redis-cli_exporter。
索性就自己用Python写了一个Rediscli_exporter.

#!/usr/bin/env python#coding:utf-8#Author: shuaibing.huo@gmail.comimport prometheus_clientimport redisfrom prometheus_client import Gaugefrom flask import Response,Flaskapp = Flask(__name__)queue_len = Gauge("www_site_queue_len","the len of redis_queue")@app.route("/metrics")def redis_conn(): pool = redis.ConnectionPool(host="xxxxxxxx.redis.rds.aliyuncs.com",port=6379,db=0,password="avavavav") conn = redis.Redis(connection_pool=pool) queue_len_data = conn.llen("www_site") queue_len.set(queue_len_data) return Response(prometheus_client.generate_latest(queue_len),mimetype="text/plain")if __name__ == "__main__": app.run(host="0.0.0.0",port=9101)

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