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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