Azkaban Process exited with code 255

报错背景

Azkaban跑MR作业

报错现象

06-05-2021 20:14:26 CST MR ERROR - Job run failed!
java.lang.RuntimeException: azkaban.jobExecutor.utils.process.ProcessFailureException: Process exited with code 255
    at azkaban.jobExecutor.ProcessJob.run(ProcessJob.java:312)
    at azkaban.execapp.JobRunner.runJob(JobRunner.java:830)
    at azkaban.execapp.JobRunner.doRun(JobRunner.java:607)
    at azkaban.execapp.JobRunner.run(JobRunner.java:568)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: azkaban.jobExecutor.utils.process.ProcessFailureException: Process exited with code 255
    at azkaban.jobExecutor.utils.process.AzkabanProcess.run(AzkabanProcess.java:125)
    at azkaban.jobExecutor.ProcessJob.run(ProcessJob.java:304)
    ... 8 more
06-05-2021 20:14:26 CST MR ERROR - azkaban.jobExecutor.utils.process.ProcessFailureException: Process exited with code 255 cause: azkaban.jobExecutor.utils.process.ProcessFailureException: Process exited with code 255
06-05-2021 20:14:26 CST MR INFO - Finishing job MR at 1620303266234 with status FAILED

报错原因

环境变量的问题

（1）执行命令没有配置环境变量

（2）命令执行过程中使用到的jar包没有写全路径

报错解决

配置环境变量，补全依赖文件目录。