[jira] [Created] (OOZIE-1837) LauncherMainHadoopUtils sensitive to clock skew

[Lars Francke (JIRA)]

Lars Francke created OOZIE-1837:
-----------------------------------

             Summary: LauncherMainHadoopUtils sensitive to clock skew
                 Key: OOZIE-1837
                 URL: https://issues.apache.org/jira/browse/OOZIE-1837
             Project: Oozie
          Issue Type: Bug
         Environment: Oozie 4.0.0 (CDH5)
            Reporter: Lars Francke
            Priority: Minor


The method {{getChildYarnJobs}} in {{LauncherMainHadoopUtils}} can fail with a 
message like {{begin > end in range (begin, end): (1399972474014, 
1399972473948)}}.

{code}
startTime = Long.parseLong((System.getProperty("oozie.job.launch.time")));
....
gar.setStartRange(startTime, System.currentTimeMillis());
{code}

I guess this is happening when the server on which the launch time was set has 
a different time then the one this task is running on. In our case there was a 
skew of about 8 seconds which caused all of our jobs that hit this server to 
fail.

I understand that skew in clocks is generally not a good idea but I feel that 
Oozie could be a bit more resilient here or print a better warning maybe?



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