Carter Shanklin created HIVE-16562:
--------------------------------------
Summary: Issues with nullif / fetch task
Key: HIVE-16562
URL: https://issues.apache.org/jira/browse/HIVE-16562
Project: Hive
Issue Type: Bug
Reporter: Carter Shanklin
HIVE-13555 adds support for nullif. I'm encountering issues with nullif on
master (3.0.0-SNAPSHOT rdac3786d86462e4d08d62d23115e6b7a3e534f5d)
Cluster side jobs work fine but client side don't.
Consider these two tables:
e011_02:
Columns c1 = float, c2 = double
1.0 1.0
1.5 1.5
2.0 2.0
test:
Columns c1 = int, c2 = int
Data:
1 1
2 2
And this query:
select nullif(c1, c2) from e011_02;
With e011_02 I get:
{code}
java.io.IOException: org.apache.hadoop.hive.ql.metadata.HiveException: Error
evaluating NULLIF(c1,c2)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:165)
at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:2177)
at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:253)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:184)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403)
at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:686)
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:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error evaluating
NULLIF(c1,c2)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:93)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:130)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:442)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:434)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:147)
... 13 more
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazy.LazyFloat cannot be cast to
org.apache.hadoop.io.FloatWritable
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableFloatObjectInspector.get(WritableFloatObjectInspector.java:36)
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils.comparePrimitiveObjects(PrimitiveObjectInspectorUtils.java:412)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFNullif.evaluate(GenericUDFNullif.java:93)
at
org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator._evaluate(ExprNodeGenericFuncEvaluator.java:187)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:80)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:68)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:88)
... 18 more
{code}
With
select nullif(c1, c2) from test;
I get:
{code}
2017-05-01T03:32:19,905 ERROR [cbaf5380-5b06-4531-aeb9-524c62314a46 main]
CliDriver: Failed with exception
java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException: Error
evaluating NULLIF(c1,c2)
java.io.IOException: org.apache.hadoop.hive.ql.metadata.HiveException: Error
evaluating NULLIF(c1,c2)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:165)
at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:2177)
at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:253)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:184)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403)
at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:686)
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:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error evaluating
NULLIF(c1,c2)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:93)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:130)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:442)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:434)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:147)
... 13 more
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazy.LazyInteger cannot be cast to
org.apache.hadoop.io.IntWritable
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableIntObjectInspector.get(WritableIntObjectInspector.java:36)
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils.comparePrimitiveObjects(PrimitiveObjectInspectorUtils.java:404)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFNullif.evaluate(GenericUDFNullif.java:93)
at
org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator._evaluate(ExprNodeGenericFuncEvaluator.java:187)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:80)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:68)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:88)
... 18 more
{code}
Now if I set hive.fetch.task.conversion=none; and force a cluster side job,
everything works fine
/cc [~kgyrtkirk] in case you have any ideas
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