美团点评CAT监控平台学习

1、安装步骤

初始化Mysql数据库，一套CAT集群需要部署一个数据库，数据库脚本script/CatApplication.sql

下载war包，或者根据源码自己打包

放到Tomcat里面运行war包

特别说明:/data/appdatas/cat和/data/applogs/cat有读写权限,存放数据库配置文件

 

 

 

docker部署方法

FROM xxx/tomcat:jdk8-openjdk 
RUN rm -rf /usr/local/tomcat/webapps/ROOT
RUN mkdir /usr/local/tomcat/cat/
COPY ["cat.war", "/usr/local/tomcat/cat/cat.war"]
COPY ["cat.war", "/usr/local/tomcat/cat.war"]
EXPOSE 8080
CMD ["catalina.sh","run"]

参考官方网站：https://github.com/dianping/cat/wiki/readme_server

api学习

transaction基本使用

 event的api

 metric使用

 可以参考：https://ld246.com/article/1574674549156

https://github.com/dianping/cat/tree/master/integration?utm_source=ld246.com

使用过程遇到的问题Unable to get instance of MessageManager, please make sure the environment was setup correctly!

解决方法：使用jettly容器启动项目

   <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>

 cat客户端集成，部署到服务端

FROM registry1.cosmoplat.com/cosmoplat/openjdk:8-jdk-alpine
#FROM registry1.cosmoplat.com/cosmoplat/jetty:9.4.18
RUN apk add --update curl --force
ADD cat-client-1.0-SNAPSHOT.jar cat-client-1.0-SNAPSHOT.jar
#RUN mkdir /data/appdatas/cat/
ADD client.xml /data/appdatas/cat/
RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
RUN echo 'Asia/Shanghai' >/etc/timezone
ENV CAT_HOME /data/appdatas/cat/
ENTRYPOINT ["java","-jar","/cat-client-1.0-SNAPSHOT.jar"]
EXPOSE 8081