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From "Balu Vellanki (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FALCON-2023) Feed eviction fails when feed locations "stats" and "meta" does not have time pattern.
Date Fri, 10 Jun 2016 16:41:21 GMT
Balu Vellanki created FALCON-2023:
-------------------------------------

             Summary: Feed eviction fails when feed locations "stats" and "meta" does not
have time pattern.
                 Key: FALCON-2023
                 URL: https://issues.apache.org/jira/browse/FALCON-2023
             Project: Falcon
          Issue Type: Bug
          Components: feed
    Affects Versions: 0.9
            Reporter: Balu Vellanki
            Assignee: Balu Vellanki
            Priority: Blocker
             Fix For: 0.10


Submit a feed 
{code}
<?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="days(90)" 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="/tmp"/>
        <location type="meta" path="/tmp"/>
    </locations>
    <ACL owner="ambari-qa" group="users" permission="0x755"/>
    <schema location="/none" provider="/none"/>
</feed>
{code}

Notice how "stats" and "meta" does not have time pattern. Both stats and meta location are
optional, and if they dont have timed pattern - it should not lead to failure in feed eviction.
 But feed eviction fails with following error.

{code}
Caused by: org.apache.falcon.FalconException: Couldn't evict feed from fileSystem
	at org.apache.falcon.entity.FileSystemStorage.evict(FileSystemStorage.java:306)
	at org.apache.falcon.retention.FeedEvictor.run(FeedEvictor.java:76)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
	at org.apache.falcon.retention.FeedEvictor.main(FeedEvictor.java:52)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:56)
	... 15 more
Caused by: java.io.IOException: Unable to resolve pattern for feedPath: /tmp
	at org.apache.falcon.entity.FeedHelper.getFeedBasePath(FeedHelper.java:442)
	at org.apache.falcon.entity.FileSystemStorage.fileSystemEvictor(FileSystemStorage.java:331)
	at org.apache.falcon.entity.FileSystemStorage.evict(FileSystemStorage.java:300)
	... 23 more
{code}



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