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From Mohammad Islam <misla...@yahoo.com>
Subject Re: handling of delayed data
Date Sat, 28 Apr 2012 00:42:22 GMT




>> #a, a coord action is scheduled to run when its time comes but it will be on
>> hold until all its input data is avail, only then will start.

>How does oozie know if input data is available? Is it merely via
>'done-flag' and _SUCCESS file?

Oozie use the uri-template and resolve its variable using the nominal time for the instance
(say current(-1)).

Then append the value of done-flag/_SUCCESS (by default).

Oozie periodically checks for that file in the HDFS until timeout period reaches.

Regards,
Mohammad

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