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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7745) NullPointerException when turn on hive.optimize.union.remove, hive.merge.mapfiles and hive.merge.mapredfiles [Spark Branch]
Date Fri, 29 May 2015 02:32:22 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xuefu Zhang updated HIVE-7745:
------------------------------
    Fix Version/s:     (was: spark-branch)
                   1.1.0

> NullPointerException when turn on hive.optimize.union.remove, hive.merge.mapfiles and
hive.merge.mapredfiles [Spark Branch]
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-7745
>                 URL: https://issues.apache.org/jira/browse/HIVE-7745
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Na Yang
>            Assignee: Na Yang
>             Fix For: 1.1.0
>
>         Attachments: HIVE-7745-spark.patch
>
>
> When the hive.optimize.union.remove, hive.merge.mapfiles and hive.merge.mapredfiles are
turned on, it throws NullPointerException when I do the following queries: 
> {noformat}
> create table inputTbl1(key string, val string) stored as textfile;
> create table outputTbl1(key string, values bigint) stored as rcfile;
> load data local inpath '../../data/files/T1.txt' into table inputTbl1;
> explain
> insert overwrite table outputTbl1
> SELECT * FROM
> (
> select key, count(1) as values from inputTbl1 group by key 
> union all
> select * FROM (
>   SELECT key, 1 as values from inputTbl1 
>   UNION ALL
>   SELECT key, 2 as values from inputTbl1
> ) a
> )b;
> {noformat}
> If the hive.merge.mapfiles and hive.merge.mapredfiles are turned off, I do not see any
error. 
> Here is the stack trace:
> {noformat}
> 2014-08-16 01:32:26,849 ERROR [main]: ql.Driver (SessionState.java:printError(681)) -
FAILED: NullPointerException null
> java.lang.NullPointerException
>         at org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.createMoveTask(GenMapRedUtils.java:1738)
>         at org.apache.hadoop.hive.ql.parse.spark.GenSparkUtils.processFileSink(GenSparkUtils.java:281)
>         at org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.generateTaskTree(SparkCompiler.java:187)
>         at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:199)
>         at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:9508)
>         at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:208)
>         at org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
>         at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:208)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:414)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:310)
>         at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1005)
>         at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1070)
>         at org.apache.hadoop.hive.ql.Driver.run(Driver.java:942)
>         at org.apache.hadoop.hive.ql.Driver.run(Driver.java:932)
>         at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:246)
>         at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:198)
>         at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:408)
>         at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:781)
>         at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675)
>         at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:197)
> {noformat}



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