[HIVE-14139] NPE dropping permanent function

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Assignee: Rui Li
• Reporter: Rui Li
• Created: 30/Jun/16 09:08
• Updated: 26/Jul/17 03:30
• Resolved: 13/Jul/16 05:19

Description

To reproduce:
1. Start a CLI session and create a permanent function.
2. Exit current CLI session.
3. Start a new CLI session and drop the function.

Stack trace:

FAILED: error during drop function: java.lang.NullPointerException
	at org.apache.hadoop.hive.ql.exec.Registry.removePersistentFunctionUnderLock(Registry.java:513)
	at org.apache.hadoop.hive.ql.exec.Registry.unregisterFunction(Registry.java:501)
	at org.apache.hadoop.hive.ql.exec.FunctionRegistry.unregisterPermanentFunction(FunctionRegistry.java:1532)
	at org.apache.hadoop.hive.ql.exec.FunctionTask.dropPermanentFunction(FunctionTask.java:228)
	at org.apache.hadoop.hive.ql.exec.FunctionTask.execute(FunctionTask.java:95)
	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:197)
	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:100)
	at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1860)
	at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1564)
	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1316)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1085)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1073)
	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:232)