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https://issues.apache.org/jira/browse/FALCON-1750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15108663#comment-15108663
]
Peeyush Bishnoi commented on FALCON-1750:
-----------------------------------------
Here in this issue it is mentioned that being Oozie was down temporarily, this
exception occurred. This kind of exception can also occur even with other
running services as well, if go down or unavailable, when instance is
executing. So it's good that while developing a fix for this issue, we should
consider other services also besides with Oozie service.
> Null Pointer Exception while listening to Workflow Notifications
> -----------------------------------------------------------------
>
> Key: FALCON-1750
> URL: https://issues.apache.org/jira/browse/FALCON-1750
> Project: Falcon
> Issue Type: Bug
> Components: general
> Affects Versions: 0.9
> Reporter: Pragya Mittal
>
> The following stacktrace is there in server logs when falcon post-processing
> is enabled :
> {noformat}
> 2016-01-14 15:20:31,728 INFO - [ActiveMQ Session Task-82:] ~ Created context
> from Oozie JMS message WorkflowExecutionContext{{workflowUser=pragya,
> entityType=PROCESS, entityName=processMerlinOozie,
> workflowEndTime=1452764965085, contextType=WORKFLOW_JOB, operation=GENERATE,
> workflowId=0000816-160113111840703-oozie-oozi-W, status=KILLED,
> workflowStartTime=1452764938610}} (JMSMessageConsumer:120)
> 2016-01-14 15:20:31,728 INFO - [ActiveMQ Session Task-82:] ~ Logging in
> pragya (CurrentUser:65)
> 2016-01-14 15:20:31,728 DEBUG - [ActiveMQ Session Task-82:] ~ Sending
> workflow end notification to listeners with context :
> WorkflowExecutionContext{{workflowUser=pragya, entityType=PROCESS,
> entityName=processMerlinOozie, workflowEndTime=1452764965085,
> contextType=WORKFLOW_JOB, operation=GENERATE,
> workflowId=0000816-160113111840703-oozie-oozi-W, status=KILLED,
> workflowStartTime=1452764938610}} (WorkflowJobEndNotificationService:230)
> 2016-01-14 15:20:31,728 ERROR - [ActiveMQ Session Task-82:] ~ Error in
> listener org.apache.falcon.handler.SLAMonitoringHandler
> (WorkflowJobEndNotificationService:245)
> java.lang.NullPointerException
> at
> org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:64)
> at
> org.apache.falcon.workflow.WorkflowExecutionContext.getNominalTimeAsISO8601(WorkflowExecutionContext.java:182)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.instrumentAlert(WorkflowJobEndNotificationService.java:281)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:240)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyFailure(WorkflowJobEndNotificationService.java:101)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:215)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:121)
> at
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1393)
> at
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2016-01-14 15:20:31,729 ERROR - [ActiveMQ Session Task-82:] ~ Got Error in
> getting error codes from actions: org.apache.falcon.FalconException:
> java.lang.NullPointerException (WorkflowExecutionContext:144)
> 2016-01-14 15:20:31,729 ERROR - [ActiveMQ Session Task-82:] ~ Error in
> listener org.apache.falcon.rerun.handler.RetryHandler
> (WorkflowJobEndNotificationService:245)
> java.lang.NullPointerException
> at
> org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:64)
> at
> org.apache.falcon.workflow.WorkflowExecutionContext.getNominalTimeAsISO8601(WorkflowExecutionContext.java:182)
> at
> org.apache.falcon.rerun.handler.RetryHandler.onFailure(RetryHandler.java:113)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:238)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyFailure(WorkflowJobEndNotificationService.java:101)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:215)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:121)
> at
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1393)
> at
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2016-01-14 15:20:31,729 ERROR - [ActiveMQ Session Task-82:] ~ Error in
> listener org.apache.falcon.rerun.handler.LateRerunHandler
> (WorkflowJobEndNotificationService:245)
> java.lang.NullPointerException
> at
> org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:64)
> at
> org.apache.falcon.workflow.WorkflowExecutionContext.getNominalTimeAsISO8601(WorkflowExecutionContext.java:182)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.instrumentAlert(WorkflowJobEndNotificationService.java:281)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:240)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyFailure(WorkflowJobEndNotificationService.java:101)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:215)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:121)
> at
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1393)
> at
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2016-01-14 15:20:31,729 ERROR - [ActiveMQ Session Task-82:] ~ Error in
> listener org.apache.falcon.metadata.MetadataMappingService
> (WorkflowJobEndNotificationService:245)
> java.lang.NullPointerException
> at
> org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:64)
> at
> org.apache.falcon.workflow.WorkflowExecutionContext.getNominalTimeAsISO8601(WorkflowExecutionContext.java:182)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.instrumentAlert(WorkflowJobEndNotificationService.java:281)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:240)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyFailure(WorkflowJobEndNotificationService.java:101)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:215)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:121)
> at
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1393)
> at
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2016-01-14 15:20:31,730 ERROR - [ActiveMQ Session Task-82:] ~ Error in
> listener org.apache.falcon.notification.service.impl.JobCompletionService
> (WorkflowJobEndNotificationService:245)
> java.lang.NullPointerException
> at
> org.apache.falcon.entity.v0.SchemaHelper.formatDateUTCToISO8601(SchemaHelper.java:64)
> at
> org.apache.falcon.workflow.WorkflowExecutionContext.getNominalTimeAsISO8601(WorkflowExecutionContext.java:182)
> at
> org.apache.falcon.notification.service.impl.JobCompletionService.constructCallbackID(JobCompletionService.java:171)
> at
> org.apache.falcon.notification.service.impl.JobCompletionService.onEnd(JobCompletionService.java:150)
> at
> org.apache.falcon.notification.service.impl.JobCompletionService.onFailure(JobCompletionService.java:131)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyWorkflowEnd(WorkflowJobEndNotificationService.java:238)
> at
> org.apache.falcon.workflow.WorkflowJobEndNotificationService.notifyFailure(WorkflowJobEndNotificationService.java:101)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.invokeListener(JMSMessageConsumer.java:215)
> at
> org.apache.falcon.messaging.JMSMessageConsumer.onMessage(JMSMessageConsumer.java:121)
> at
> org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1393)
> at
> org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
> org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:133)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
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