ERROR - Bad property definition! null

[idelin]

10-11-2016 11:22:49 CST hive-demo INFO - Starting job hive-demo at 1478748169716
10-11-2016 11:22:49 CST hive-demo INFO - azkaban.webserver.url property was not set
10-11-2016 11:22:49 CST hive-demo INFO - job JVM args: -Dazkaban.flowid=hive-demo -Dazkaban.execid=51 -Dazkaban.jobid=hive-demo
10-11-2016 11:22:49 CST hive-demo INFO - Building hive job executor.
10-11-2016 11:22:49 CST hive-demo ERROR - Bad property definition! null
10-11-2016 11:22:49 CST hive-demo ERROR - caught error running the job
10-11-2016 11:22:49 CST hive-demo ERROR - Job run failed!
java.lang.Exception: java.lang.Exception: Bad property definition! null
at azkaban.jobtype.HadoopHiveJob.run(HadoopHiveJob.java:104)
at azkaban.execapp.JobRunner.runJob(JobRunner.java:590)
at azkaban.execapp.JobRunner.run(JobRunner.java:443)
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: java.lang.Exception: Bad property definition! null
at azkaban.jobExecutor.ProcessJob.handleError(ProcessJob.java:253)
at azkaban.jobExecutor.ProcessJob.run(ProcessJob.java:73)
at azkaban.jobtype.HadoopHiveJob.run(HadoopHiveJob.java:100)
... 7 more
Caused by: java.lang.NullPointerException
at java.util.regex.Matcher.getTextLength(Matcher.java:1283)
at java.util.regex.Matcher.reset(Matcher.java:309)
at java.util.regex.Matcher.(Matcher.java:229)
at java.util.regex.Pattern.matcher(Pattern.java:1093)
at azkaban.utils.PropsUtils.resolveVariableReplacement(PropsUtils.java:182)
at azkaban.utils.PropsUtils.resolveProps(PropsUtils.java:162)
at azkaban.jobExecutor.AbstractProcessJob.resolveProps(AbstractProcessJob.java:84)
at azkaban.jobExecutor.ProcessJob.run(ProcessJob.java:71)
... 8 more
10-11-2016 11:22:49 CST hive-demo ERROR - java.lang.Exception: Bad property definition! null cause: java.lang.Exception: Bad property definition! null
10-11-2016 11:22:49 CST hive-demo INFO - Finishing job hive-demo attempt: 0 at 1478748169741 with status FAILED

当我使用hive job 的时候出现这个错误，应该是什么问题？help me！