[jira] [Created] (HIVE-15440) Multiple inserts query from the union table failed by java.lang.IllegalArgumentException

["Aleksey Vovchenko (JIRA)" <ji...@apache.org>]

Aleksey Vovchenko created HIVE-15440:
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             Summary: Multiple inserts query from the union table failed by java.lang.IllegalArgumentException
                 Key: HIVE-15440
                 URL: https://issues.apache.org/jira/browse/HIVE-15440
             Project: Hive
          Issue Type: Bug
            Reporter: Aleksey Vovchenko


STEP 1. Configure Hive on Tez

STEP2.  Create test tables

hive> create table t1(x int);
hive> create table t2(x int);
hive> create table t1_tmp(x int);
hive> create table t2_tmp(x int);

STEP 3. Run query

hive> from(select x from t1 union all select x from t2)tbl insert overwrite table t1_tmp select x insert overwrite table t2_tmp select x;

RESULT

2016-11-30 13:50:51,610 ERROR [main]: exec.Task (TezTask.java:execute(197)) - Failed to execute tez graph.
java.lang.IllegalArgumentException: VertexGroup must have at least 2 members
	at org.apache.tez.dag.api.VertexGroup.<init>(VertexGroup.java:77)
	at org.apache.tez.dag.api.DAG.createVertexGroup(DAG.java:177)
	at org.apache.hadoop.hive.ql.exec.tez.TezTask.build(TezTask.java:333)
	at org.apache.hadoop.hive.ql.exec.tez.TezTask.execute(TezTask.java:169)
	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160)
	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:85)
	at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1635)
	at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1395)
	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1208)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1035)
	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1025)
	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:201)
	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:153)
	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:364)
	at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:712)
	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:631)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:570)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.apache.hadoop.util.RunJar.main(RunJar.java:212)



This issue doesn't happen on MR mode.



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