[FALCON-579] Lineage breaks if feed.xml doesn't have the date pattern in feed path location

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.6
• Assignee: Sowmya Ramesh
• Reporter: Sowmya Ramesh
• Created: 08/Aug/14 18:42
• Updated: 02/Sep/14 20:49
• Resolved: 02/Sep/14 20:03

Description

Lineage breaks if feed.xml doesn't have the date pattern in feed path.

Stack trace:
2014-08-07 18:00:24,385 INFO  - [ActiveMQ Session Task:] ~ Computing feed instance for : name=input-feed, path= hdfs://master.hortonworks.com:8020/landing/data, in cluster: KLSS (InstanceRelationshipGraphBuilder:173)
2014-08-07 18:00:24,389 INFO  - [ActiveMQ Session Task:] ~ Error in onMessage for subscriber of topic: FALCON.ENTITY.TOPIC (FalconTopicSubscriber:136)
java.lang.RuntimeException: java.text.ParseException: Unparseable date: ""
        at org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:68)
        at org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.getFileSystemFeedInstanceName(InstanceRelationshipGraphBuilder.java:230)
        at org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.getFeedInstanceName(InstanceRelationshipGraphBuilder.java:203)
        at org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.addFeedInstance(InstanceRelationshipGraphBuilder.java:175)
        at org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.addInputFeedInstances(InstanceRelationshipGraphBuilder.java:163)
        at org.apache.falcon.metadata.MetadataMappingService.onProcessInstanceAdded(MetadataMappingService.java:284)
        at org.apache.falcon.metadata.MetadataMappingService.onSuccessfulWorkflowCompletion(MetadataMappingService.java:265)
        at org.apache.falcon.service.FalconTopicSubscriber.notifyMetadataMappingService(FalconTopicSubscriber.java:144)
        at org.apache.falcon.service.FalconTopicSubscriber.onMessage(FalconTopicSubscriber.java:129)
        at org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1229)
        at org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:134)
        at org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:205)
        at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122)
        at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:744)
Caused by: java.text.ParseException: Unparseable date: ""
        at java.text.DateFormat.parse(DateFormat.java:357)
        at org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:66)