[ASTERIXDB-2756] NullPointerException in DatasetResourceReference.parse()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.5
• Fix Version/s: 0.9.5
• Component/s: STO - Storage
• Assignee: Murtadha Makki Al Hubail
• Reporter: Murtadha Makki Al Hubail
• Created: 07/Jul/20 14:49
• Updated: 10/Sep/20 12:23
• Resolved: 10/Sep/20 12:23

Description

The following NPE was encountered during a test that creates 10 datasets then ingestion some data then create another 10 datasets and ingestion more data:

java.lang.NullPointerException: null
	at org.apache.asterix.common.storage.DatasetResourceReference.parse(DatasetResourceReference.java:55) ~[asterix-common.jar:7.0.0-0000]
	at org.apache.asterix.common.storage.DatasetResourceReference.of(DatasetResourceReference.java:38) ~[asterix-common.jar:7.0.0-0000]
	at org.apache.asterix.transaction.management.resource.PersistentLocalResourceRepository.getLocalResourceReference(PersistentLocalResourceRepository.java:352) ~[asterix-transactions.jar:7.0.0-0000]
	at org.apache.asterix.replication.management.IndexReplicationManager.skip(IndexReplicationManager.java:135) ~[asterix-replication.jar:7.0.0-0000]
	at org.apache.asterix.replication.management.IndexReplicationManager.process(IndexReplicationManager.java:104) ~[asterix-replication.jar:7.0.0-0000]
	at org.apache.asterix.replication.management.IndexReplicationManager.access$200(IndexReplicationManager.java:45) ~[asterix-replication.jar:7.0.0-0000]
	at org.apache.asterix.replication.management.IndexReplicationManager$ReplicationJobsProcessor.run(IndexReplicationManager.java:175) ~[asterix-replication.jar:7.0.0-0000]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?]

It looks like due to LSM lifecycle changes, some file of a disk component was deleted before we get a chance to check if it needs to be replicated or not.