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https://issues.apache.org/jira/browse/FALCON-1401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pallavi Rao resolved FALCON-1401.
---------------------------------
Resolution: Fixed
> MetadataMappingService fails to add an edge for a process instance
> ------------------------------------------------------------------
>
> Key: FALCON-1401
> URL: https://issues.apache.org/jira/browse/FALCON-1401
> Project: Falcon
> Issue Type: Bug
> Reporter: Pallavi Rao
> Assignee: Pallavi Rao
> Priority: Minor
> Labels: backward-incompatible
> Fix For: 0.8
>
> Attachments: FALCON-1401-v1.patch, FALCON-1401.patch
>
>
> If a process has no output feeds, the metadata mapping service fails to add
> an edge for the process instances. It fails with NPE:
> {code}
> 2015-08-14 15:31:00,950 INFO - [ActiveMQ Session Task:] ~ Adding process
> instance: pig-sleep-process/2015-07-28T07:40Z
> (InstanceRelationshipGraphBuilder:74)
> 2015-08-14 15:31:00,951 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:00,957 DEBUG - [ActiveMQ Session Task:] ~ Creating a new
> vertex for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:101)
> 2015-08-14 15:31:00,981 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process, type=PROCESS_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:00,984 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pig-sleep-process, type=PROCESS_ENTITY, v=v[16]
> (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:00,988 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=local, type=CLUSTER_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:00,990 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=local, type=CLUSTER_ENTITY, v=v[4] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:00,992 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pallavi.rao, type=USER (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:00,995 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pallavi.rao, type=USER, v=v[8] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:00,997 INFO - [ActiveMQ Session Task:] ~ Computing feed
> instance for : name= IGNORE path= IGNORE, in cluster: local
> (InstanceRelationshipGraphBuilder:243)
> 2015-08-14 15:31:01,009 INFO - [ActiveMQ Session Task:] ~ Adding process
> instance: pig-sleep-process/2015-07-28T07:40Z
> (InstanceRelationshipGraphBuilder:74)
> 2015-08-14 15:31:01,009 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,012 DEBUG - [ActiveMQ Session Task:] ~ Creating a new
> vertex for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:101)
> 2015-08-14 15:31:01,033 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process, type=PROCESS_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,035 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pig-sleep-process, type=PROCESS_ENTITY, v=v[16]
> (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,039 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=local, type=CLUSTER_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,041 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=local, type=CLUSTER_ENTITY, v=v[4] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,043 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pallavi.rao, type=USER (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,044 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pallavi.rao, type=USER, v=v[8] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,047 INFO - [ActiveMQ Session Task:] ~ Computing feed
> instance for : name= IGNORE path= IGNORE, in cluster: local
> (InstanceRelationshipGraphBuilder:243)
> 2015-08-14 15:31:01,073 INFO - [ActiveMQ Session Task:] ~ Adding process
> instance: pig-sleep-process/2015-07-28T07:40Z
> (InstanceRelationshipGraphBuilder:74)
> 2015-08-14 15:31:01,073 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,076 DEBUG - [ActiveMQ Session Task:] ~ Creating a new
> vertex for: name=pig-sleep-process/2015-07-28T07:40Z, type=PROCESS_INSTANCE
> (RelationshipGraphBuilder:101)
> 2015-08-14 15:31:01,096 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pig-sleep-process, type=PROCESS_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,098 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pig-sleep-process, type=PROCESS_ENTITY, v=v[16]
> (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,102 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=local, type=CLUSTER_ENTITY (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,103 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=local, type=CLUSTER_ENTITY, v=v[4] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,105 DEBUG - [ActiveMQ Session Task:] ~ Finding vertex
> for: name=pallavi.rao, type=USER (RelationshipGraphBuilder:87)
> 2015-08-14 15:31:01,108 INFO - [ActiveMQ Session Task:] ~ Vertex exists?
> name=pallavi.rao, type=USER, v=v[8] (InstanceRelationshipGraphBuilder:129)
> 2015-08-14 15:31:01,110 INFO - [ActiveMQ Session Task:] ~ Computing feed
> instance for : name= IGNORE path= IGNORE, in cluster: local
> (InstanceRelationshipGraphBuilder:243)
> 2015-08-14 15:31:01,111 ERROR - [ActiveMQ Session Task:] ~ Error in listener
> org.apache.falcon.metadata.MetadataMappingService
> (WorkflowJobEndNotificationService:226)
> org.apache.falcon.FalconException: java.lang.RuntimeException:
> java.lang.NullPointerException
> at
> org.apache.falcon.metadata.MetadataMappingService.onSuccess(MetadataMappingService.java:274)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:222)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifySuccess(WorkflowJobEndNotificationService.java:105)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:169)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:112)
> 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:745)
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
> at
> com.tinkerpop.blueprints.util.TransactionRetryStrategy$AbstractRetryStrategy.execute(TransactionRetryStrategy.java:176)
> at
> com.tinkerpop.blueprints.util.TransactionRetryHelper.use(TransactionRetryHelper.java:115)
> at
> com.tinkerpop.blueprints.util.TransactionRetryHelper.exponentialBackoff(TransactionRetryHelper.java:94)
> at
> org.apache.falcon.metadata.MetadataMappingService.onSuccess(MetadataMappingService.java:263)
> ... 12 more
> Caused by: java.lang.NullPointerException
> at org.apache.falcon.entity.FeedHelper.getCluster(FeedHelper.java:80)
> at
> org.apache.falcon.entity.FeedHelper.getStorageType(FeedHelper.java:235)
> at
> org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.getFeedInstanceName(InstanceRelationshipGraphBuilder.java:280)
> at
> org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.addFeedInstance(InstanceRelationshipGraphBuilder.java:245)
> at
> org.apache.falcon.metadata.InstanceRelationshipGraphBuilder.addOutputFeedInstances(InstanceRelationshipGraphBuilder.java:151)
> at
> org.apache.falcon.metadata.MetadataMappingService.onProcessInstanceExecuted(MetadataMappingService.java:313)
> at
> org.apache.falcon.metadata.MetadataMappingService.onSuccessfulExecution(MetadataMappingService.java:282)
> at
> org.apache.falcon.metadata.MetadataMappingService.access$100(MetadataMappingService.java:53)
> at
> org.apache.falcon.metadata.MetadataMappingService$3.execute(MetadataMappingService.java:267)
> at
> org.apache.falcon.metadata.MetadataMappingService$3.execute(MetadataMappingService.java:264)
> at
> com.tinkerpop.blueprints.util.TransactionRetryStrategy$AbstractRetryStrategy.execute(TransactionRetryStrategy.java:146)
> {code}
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