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https://reviews.apache.org/r/40892/
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Review request for Falcon and Venkat Ranganathan.
Bugs: Falcon-1644
https://issues.apache.org/jira/browse/Falcon-1644
Repository: falcon-git
Description
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Here is a sample feed xml.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<feed name="rawEmailFeed" description="Raw customer email feed"
xmlns="uri:falcon:feed:0.1">
<tags>externalSystem=USWestEmailServers</tags>
<groups>churnAnalysisDataPipeline</groups>
<frequency>hours(1)</frequency>
<timezone>UTC</timezone>
<late-arrival cut-off="hours(1)"/>
<clusters>
<cluster name="primaryCluster" type="source">
<validity start="2015-10-30T01:00Z" end="2015-10-30T10:00Z"/>
<retention limit="hours(10)" action="delete"/>
</cluster>
</clusters>
<locations>
<location type="data"
path="/user/ambari-qa/falcon/demo/primary/input/enron/${YEAR}-${MONTH}-${DAY}-${HOUR}"/>
<location type="stats" path="/"/>
<location type="meta" path="/"/>
</locations>
<ACL owner="ambari-qa" group="users" permission="0x755"/>
<schema location="/none" provider="/none"/>
</feed>
In the above example, the validity time is "the time interval when the feed is
valid on this cluster". After the validity time ends, falcon is not expected to
perform any operations on the feed. The retention job for this feed will be run
from validity start time up to validity end time, and will delete any feed
instances older than 10 hours. Some instances of Feed will never be deleted. In
the above example, feed instances at between 2015-10-30T00:00Z and
2015-10-30T10:00Z will never be deleted.
Ideally, the retention coordinator job should run from "validity start time" up
to "validity end time + retention age limit" to ensure all instances are
handled.
Diffs
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common/src/main/java/org/apache/falcon/entity/FeedHelper.java d601c5d
oozie/src/main/java/org/apache/falcon/oozie/feed/FeedRetentionCoordinatorBuilder.java
69ca2c3
oozie/src/test/java/org/apache/falcon/oozie/feed/OozieFeedWorkflowBuilderTest.java
d034b1a
Diff: https://reviews.apache.org/r/40892/diff/
Testing
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End2End testing done to ensure retention coord endtime is set to "validity end
time + retention age limit"
Thanks,
Balu Vellanki
