Karthiek created HELIX-589:
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Summary: Delete job API throws NPE if the job does not exist in
last scheduled workflow
Key: HELIX-589
URL: https://issues.apache.org/jira/browse/HELIX-589
Project: Apache Helix
Issue Type: Bug
Reporter: Karthiek
When trying to delete a job from a recurrent job queue, Helix throws NPE if the
job does not exist in last scheduled workflow.
java.lang.IllegalArgumentException: Could not remove job BackupJob_MailboxDB
from DAG of queue BackupJobQueue_ESPRESSO_CHO_1_SCHEDULED_0
at
org.apache.helix.task.TaskDriver.removeJobFromDag(TaskDriver.java:411)
at
org.apache.helix.task.TaskDriver.deleteJobFromScheduledQueue(TaskDriver.java:345)
at org.apache.helix.task.TaskDriver.deleteJob(TaskDriver.java:303)
It is possible for a user to add and immediately delete the job before the next
workflow is scheduled. Helix should accommodate this case and check if the job
exists in last scheduled workflow before trying to delete it.
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