java-profiling-demo

观测云 profiling 演示程序（java）

主机运行

编译

$ ./gradlew installDist

运行

$ JAVA_OPTS="-javaagent:dd-java-agent.jar -Ddd.agent.host=127.0.0.1 -Ddd.trace.agent.port=9529 -Ddd.service=java-profiling-demo -Ddd.env=demo -Ddd.version=v0.0.1 -Ddd.profiling.enabled=true" ./build/install/java-profiling-demo/bin/java-profiling-demo

验证运行状态

$ curl 'http://127.0.0.1:8080/movies?q=batman'
[{"title":"Batman Begins","vote_average":4.6358799822491275,"release_date":"2005-05-31"},{"title":"Batman: Mystery of the Batwoman","vote_average":3.9549411967914105,"release_date":"2003-10-21"},{"title":"Batman Beyond: Return of the Joker","vote_average":1.8787282761678148,"release_date":"2000-10-31"},{"title":"Batman \u0026 Mr. Freeze: SubZero","vote_average":2.647401476348437,"release_date":"1998-03-17"},{"title":"Batman \u0026 Robin (film)","vote_average":2.7898866857094324,"release_date":"1997-06-12"},{"title":"Batman Forever","vote_average":2.4202373224443887,"release_date":"1995-06-09"},{"title":"Batman: Mask of the Phantasm","vote_average":4.107120385998093,"release_date":"1993-12-24"},{"title":"Batman Returns","vote_average":3.592054763414077,"release_date":"1992-06-16"},{"title":"Batman (1989 film)","vote_average":4.001755941748073,"release_date":"1989-06-19"},{"title":"Batman (1966 film)","vote_average":2.189099767926333,"release_date":"1966-07-30"},{"title":"Batman Fights Dracula","vote_average":3.863042623801402,"release_date":"1900-01-01"},{"title":"Batman Dracula","vote_average":4.483630276919295,"release_date":"1900-01-01"}]

由于项目故意加了一些耗时任务，所有请求结果可能需要几十秒的时间才能返回。

如果安装了 jq 工具，可以对返回的json内容进行格式化

sh-3.2# curl 'http://127.0.0.1:8080/movies?q=spider' | jq
[
  {
    "title": "Spider in the Web",
    "vote_average": 4.3551297815393175,
    "release_date": "2019-08-30"
  },
  {
    "title": "Spider-Man 3",
    "vote_average": 2.54672384115799,
    "release_date": "2007-04-16"
  },
  {
    "title": "Spider-Man 2",
    "vote_average": 2.7380715002602,
    "release_date": "2004-06-22"
  },
  {
    "title": "Spider (2002 film)",
    "vote_average": 2.1512631396751223,
    "release_date": "2002-12-13"
  },
  {
    "title": "Spider-Man (2002 film)",
    "vote_average": 2.666549403983728,
    "release_date": "2002-04-29"
  },
  {
    "title": "Kiss of the Spider Woman (film)",
    "vote_average": 2.3350488225969306,
    "release_date": "1985-05-13"
  },
  {
    "title": "Spider Baby",
    "vote_average": 0.33910029635005945,
    "release_date": "1900-01-01"
  },
  {
    "title": "Spiderweb (film)",
    "vote_average": 3.2936595576259915,
    "release_date": "1900-01-01"
  }
]

Docker 下运行

• 如果没有安装 docker-compose，请先参照 install docker-compose 或自行搜索教程进行安装。

• 启动服务并访问

$ git clone https://github.com/GuanceCloud/java-profiling-demo.git
$ cd java-profiling-demo
$ DK_DATAWAY=<your-dataway-url> docker-compose up -d
$ curl 'http://127.0.0.1:8080/movies?q=spider'

• 停止服务

$ docker-compose down

DK_DATAWAY 可以从观测云空间 集成 -> Datakit 页面上复制，一般为： https://openway.guance.com?token=tkn_xxxxxxxxxxxxxxxxxx 格式。

除了上述在启动命令中直接设置 DK_DATAWAY环境变量外， 还可以通过修改项目根目录下的 .env 文件来设置更多其他的环境变量。