C#控制台程序,用于测试阿里云的缓存预热刷新API 文章地址:https://blog.csdn.net/u013283476/article/details/120951261
2021-10-26 15:03:21 1.28MB c# 阿里云 缓存 预热刷新
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一、基于nginx+lua完成商品详情页访问流量实时上报kafka的开发 ==================================== 在nginx这一层,接收到访问请求的时候,就把请求的流量上报发送给kafka 这样的话,storm才能去消费kafka中的实时的访问日志,然后去进行缓存热数据的统计 用得技术方案非常简单,从lua脚本直接创建一个kafka producer,发送数据到kafka ``` wget https://github.com/doujiang24/lua-resty-kafka/archive/master.zip yum install -y unzip unzip lua-resty-kafka-master.zip cp -rf /usr/local/lua-resty-kafka-master/lib/resty /usr/hello/lualib nginx -s reload local cjson = require("cjson") local producer = require("resty.kafka.producer") local broker_list = { { host = "192.168.31.187", port = 9092 }, { host = "192.168.31.19", port = 9092 }, { host = "192.168.31.227", port = 9092 } } local log_json = {} log_json["headers"] = ngx.req.get_headers() log_json["uri_args"] = ngx.req.get_uri_args() log_json["body"] = ngx.req.read_body() log_json["http_version"] = ngx.req.http_version() log_json["method"] =ngx.req.get_method() log_json["raw_reader"] = ngx.req.raw_header() log_json["body_data"] = ngx.req.get_body_data() local message = cjson.encode(log_json); local productId = ngx.req.get_uri_args()["productId"] local async_producer = producer:new(broker_list, { producer_type = "async" }) local ok, err = async_producer:send("access-log", productId, message) if not ok then ngx.log(ngx.ERR, "kafka send err:", err) return end ``` 两台机器上都这样做,才能统一上报流量到kafka ``` bin/kafka-topics.sh --zookeeper 192.168.31.187:2181,192.168.31.19:2181,192.168.31.227:2181 --topic access-log --replication-factor 1 --partitions 1 --create bin/kafka-console-consumer.sh --zookeeper 192.168.31.187:2181,192.168.31.19:2181,192.168.31.227:2181 --topic access-log --from-beginning ``` (1)kafka在187上的节点死掉了,可能是虚拟机的问题,杀掉进程,重新启动一下 nohup bin/kafka-server-start.sh config/server.properties & (2)需要在nginx.conf中,http部分,加入resolver 8.8.8.8; (3)需要在kafka中加入advertised.host.name = 192.168.31.187,重启三个kafka进程 (4)需要启动eshop-cache缓存服务,因为nginx中的本地缓存可能不在了 二、基于storm+kafka完成商品访问次数实时统计拓扑的开发 ==============
2021-07-16 17:54:30 30.71MB 缓存预热
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