Question

是否可以动态安排Oozie工作流？也就是说，通过Java API而不是配置文件指定参数？

例如，我希望能够在每天晚上10点安排工作流程执行，但是要通过Web界面指定时间，因为它可以更改。怎么做？

Answer 1

您好，您可以使用以下内容：

public class Oozie {

    public static void main(String[] args) {
        OozieClient wc = new OozieClient("http://oozieserver:11000/oozie");

        Properties conf = wc.createConfiguration();

        conf.setProperty("nameNode", "hdfs://namenode:8020");
        conf.setProperty("jobTracker", "resourcemanager:8032");
        conf.setProperty("queueName", "default");
        conf.setProperty("oozie.libpath", "${nameNode}/user/oozie/share/lib");
        conf.setProperty("oozie.use.system.libpath", "true");
        conf.setProperty("oozie.wf.rerun.failnodes", "true");

        conf.setProperty("oozieProjectRoot",
                "${nameNode}/user/bijoy/oozieProject");
        conf.setProperty("appPath",
                "${oozieProjectRoot}/workflowJavaMainAction");
        conf.setProperty(OozieClient.APP_PATH, "${appPath}");

        conf.setProperty("inputDir", "${oozieProjectRoot}/data/*/*/*/*/*");
        conf.setProperty("outputDir", "${appPath}/output");

        try {
            String jobId = wc.run(conf);
            System.out.println("Workflow job, " + jobId + " submitted");

            while (wc.getJobInfo(jobId).getStatus() == WorkflowJob.Status.RUNNING) {
                System.out.println("Workflow job running ...");
                Thread.sleep(10 * 1000);
            }
            System.out.println("Workflow job completed ...");
            System.out.println(wc.getJobInfo(jobId));
        } catch (Exception r) {
            System.out.println("Errors " + r.getLocalizedMessage());
        }
    }
}

通过Java API安排Oozie工作流程

1 个答案: