[DRILL-6302] NPE in Drillbit.java in close method

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.13.0
• Fix Version/s: 1.14.0
• Component/s: Execution - Flow
• Labels: ready-to-commit

Environment

git.commit.id=bb07ebbb9ba8742f44689f8bd8efb5853c5edea0

• Assignee: Venkata Jyothsna Donapati
• Reporter: Khurram Faraaz
• Reviewer: Sorabh Hamirwasia
• Created: 30/Mar/18 01:25
• Updated: 29/Apr/18 20:42
• Resolved: 29/Apr/18 20:42

Description

registrationHandle in the close method of Drillbit.java (line 228) is null, which causes an NPE and as a result the server does not close.

https://github.com/mapr/private-drill/blob/drill-1.12.0-mapr/exec/java-exec/src/main/java/org/apache/drill/exec/server/Drillbit.java#L228

registrationHandle = coord.update(registrationHandle, State.QUIESCENT);

Stack trace from drillbit.log

/opt/mapr/drill/drill-1.12.0/logs/drillbit.out

OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0
Exception in thread "main" java.lang.NullPointerException
at org.apache.drill.exec.coord.zk.ZKClusterCoordinator.update(ZKClusterCoordinator.java:223)
at org.apache.drill.exec.server.Drillbit.close(Drillbit.java:228)
at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:401)
at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:372)
at org.apache.drill.exec.server.Drillbit.main(Drillbit.java:368)

 

Issue Links

• contains: DRILL-6351 Drill fails with NullPointerException when starting in embedded mode
• links to: GitHub Pull Request #1217