[HIVE-9975] Renaming a nonexisting partition should not throw out NullPointerException

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Assignee: Chaoyu Tang
• Reporter: Chaoyu Tang
• Created: 16/Mar/15 14:54
• Updated: 18/May/15 19:55
• Resolved: 19/Mar/15 22:44

Description

Renaming a nonexisting partition should not throw out NullPointerException.
create table testpart (col1 int, col2 string, col3 string) partitioned by (part string);
alter table testpart partition (part = 'nonexisting') rename to partition (part = 'existing');
we get NPE like following:

15/03/16 10:16:11 ERROR exec.DDLTask: java.lang.NullPointerException
	at org.apache.hadoop.hive.ql.exec.DDLTask.renamePartition(DDLTask.java:944)
	at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:350)
	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:88)
	at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1642)
	at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1402)
	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1187)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1053)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1043)
	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:207)
	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:159)
	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:370)
	at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:754)
	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:615)

FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. null