azkaban 开发环境搭建

• 使用工具intelij

启动AzkabanWebServer

azkaban webServer的入口函数是AzkabanWebServer.

 String staticDir =
        azkabanSettings.getString("web.resource.dir", DEFAULT_STATIC_DIR);
    logger.info("Setting up web resource dir " + staticDir);
    Context root = new Context(server, "/", Context.SESSIONS);
    root.setMaxFormContentSize(MAX_FORM_CONTENT_SIZE);

    String defaultServletPath =
        azkabanSettings.getString("azkaban.default.servlet.path", "/index");
    root.setResourceBase(staticDir);
    ServletHolder indexRedirect =
        new ServletHolder(new IndexRedirectServlet(defaultServletPath));
    root.addServlet(indexRedirect, "/");
    ServletHolder index = new ServletHolder(new ProjectServlet());
    root.addServlet(index, "/index");

    ServletHolder staticServlet = new ServletHolder(new DefaultServlet());
    root.addServlet(staticServlet, "/css/*");
    root.addServlet(staticServlet, "/js/*");
    root.addServlet(staticServlet, "/images/*");
    root.addServlet(staticServlet, "/fonts/*");
    root.addServlet(staticServlet, "/favicon.ico");

    root.addServlet(new ServletHolder(new ProjectManagerServlet()), "/manager");
    root.addServlet(new ServletHolder(new ExecutorServlet()), "/executor");
    root.addServlet(new ServletHolder(new HistoryServlet()), "/history");
    root.addServlet(new ServletHolder(new ScheduleServlet()), "/schedule");
    root.addServlet(new ServletHolder(new JMXHttpServlet()), "/jmx");
    root.addServlet(new ServletHolder(new TriggerManagerServlet()), "/triggers");
    root.addServlet(new ServletHolder(new StatsServlet()), "/stats");

    ServletHolder restliHolder = new ServletHolder(new RestliServlet());
    restliHolder.setInitParameter("resourcePackages", "azkaban.restli");
    root.addServlet(restliHolder, "/restli/*");

    String viewerPluginDir =
        azkabanSettings.getString("viewer.plugin.dir", "plugins/viewer");
    loadViewerPlugins(root, viewerPluginDir, app.getVelocityEngine());

    // triggerplugin
    String triggerPluginDir =
        azkabanSettings.getString("trigger.plugin.dir", "plugins/triggers");
    Map triggerPlugins =
        loadTriggerPlugins(root, triggerPluginDir, app);
    app.setTriggerPlugins(triggerPlugins);
    // always have basic time trigger
    // TODO: find something else to do the job
    app.getTriggerManager().start();

从代码中可以看出来,web.resource.dir默认是"",那么会加载工作目录下的css,js,images,fonts.
所以intelij设置working directory,设为azkaban-web-server/src
最好更改azkaban.properties

web.resource.dir=/Users/wqs/workplace/azkaban/azkaban-web-server/build/install/azkaban-web-server/web/

设置intelij 入口函数AzkabanWebServer参数为-conf /Users/wqs/workplace/azkaban/azkaban-web-server/src/main/config/conf

接着就可以直接运行了

问题

• Error:(23, 27) java: 程序包azkaban.restli.user不存在
  azkaban采用了rest.li来实现rest。
  步骤:
  gradle build,先把azkaban.restli.user编译成类文件 rest.li

• executor接收不到web-server的执行任务的请求
  原因:
  缺失:moment.min.js ,bootstrap-datetimepicker.min.js,moment-timezone-with-data-2010- 2020.min.js,later.min.js,在mac上无法获取mem,cpu等信息.

if (exists_Bash && exists_Cat && exists_Grep && exists_Meminfo) {
      java.lang.ProcessBuilder processBuilder =
          new java.lang.ProcessBuilder("/bin/bash", "-c",
              "/bin/cat /proc/meminfo | grep -E \"^MemTotal:|^MemFree:|^Buffers:|^Cached:|^SwapCached:\"");
      try {
        ArrayList output = new ArrayList();
        Process process = processBuilder.start();
        process.waitFor();
        InputStream inputStream = process.getInputStream();
        try {
          java.io.BufferedReader reader = new java.io.BufferedReader(new InputStreamReader(inputStream));
          String line = null;
          while ((line = reader.readLine()) != null) {
            output.add(line);
          }
        } finally {
          inputStream.close();
        }
..........

步骤:
1./bin/cat /proc/meminfo | grep -E ^MemTotal:|MemFree:|^Buffers:|Cached:|^SwapCached
命令在mac上执行不了,所以如果在mac上执行,需要重新改造
2.通过执行gradle install,从web/查找缺少的css,js