[ 
https://issues.apache.org/jira/browse/HIVE-7591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Brock Noland updated HIVE-7591:
-------------------------------

    Description: 
When running queries, I got exception like this:
{noformat}
FAILED: ClassCastException org.apache.hadoop.hive.ql.plan.SparkWork cannot be 
cast to org.apache.hadoop.hive.ql.plan.TezWork
14/07/31 15:08:53 ERROR ql.Driver: FAILED: ClassCastException 
org.apache.hadoop.hive.ql.plan.SparkWork cannot be cast to 
org.apache.hadoop.hive.ql.plan.TezWork
java.lang.ClassCastException: org.apache.hadoop.hive.ql.plan.SparkWork cannot 
be cast to org.apache.hadoop.hive.ql.plan.TezWork
        at 
org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.addStatsTask(GenMapRedUtils.java:1419)
        at 
org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.isMergeRequired(GenMapRedUtils.java:1645)
        at 
org.apache.hadoop.hive.ql.parse.spark.GenSparkUtils.processFileSink(GenSparkUtils.java:313)
        at 
org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.generateTaskTree(SparkCompiler.java:180)
        at 
org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:199)
        at 
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:9514)
        at 
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
        at 
org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
        at 
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:413)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:309)
        at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:984)
        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1049)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:911)
        at 
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:265)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:217)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:427)
        at 
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:800)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:694)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:633)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
{noformat}
Apparently, GenMapRedUtils::addStatsTask only assumes either MapredWork or 
TezWork, and since we are introducing SparkWork, this need to be fixed.


  was:
When running queries, I got exception like this:
FAILED: ClassCastException org.apache.hadoop.hive.ql.plan.SparkWork cannot be 
cast to org.apache.hadoop.hive.ql.plan.TezWork
14/07/31 15:08:53 ERROR ql.Driver: FAILED: ClassCastException 
org.apache.hadoop.hive.ql.plan.SparkWork cannot be cast to 
org.apache.hadoop.hive.ql.plan.TezWork
java.lang.ClassCastException: org.apache.hadoop.hive.ql.plan.SparkWork cannot 
be cast to org.apache.hadoop.hive.ql.plan.TezWork
        at 
org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.addStatsTask(GenMapRedUtils.java:1419)
        at 
org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.isMergeRequired(GenMapRedUtils.java:1645)
        at 
org.apache.hadoop.hive.ql.parse.spark.GenSparkUtils.processFileSink(GenSparkUtils.java:313)
        at 
org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.generateTaskTree(SparkCompiler.java:180)
        at 
org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:199)
        at 
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:9514)
        at 
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
        at 
org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
        at 
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:413)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:309)
        at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:984)
        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1049)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:911)
        at 
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:265)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:217)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:427)
        at 
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:800)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:694)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:633)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

Apparently, GenMapRedUtils::addStatsTask only assumes either MapredWork or 
TezWork, and since we are introducing SparkWork, this need to be fixed.



> GenMapRedUtils::addStatsTask only assumes either MapredWork or TezWork
> ----------------------------------------------------------------------
>
>                 Key: HIVE-7591
>                 URL: https://issues.apache.org/jira/browse/HIVE-7591
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>            Reporter: Chao
>            Assignee: Brock Noland
>             Fix For: spark-branch
>
>         Attachments: HIVE-7591-spark.patch
>
>
> When running queries, I got exception like this:
> {noformat}
> FAILED: ClassCastException org.apache.hadoop.hive.ql.plan.SparkWork cannot be 
> cast to org.apache.hadoop.hive.ql.plan.TezWork
> 14/07/31 15:08:53 ERROR ql.Driver: FAILED: ClassCastException 
> org.apache.hadoop.hive.ql.plan.SparkWork cannot be cast to 
> org.apache.hadoop.hive.ql.plan.TezWork
> java.lang.ClassCastException: org.apache.hadoop.hive.ql.plan.SparkWork cannot 
> be cast to org.apache.hadoop.hive.ql.plan.TezWork
>       at 
> org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.addStatsTask(GenMapRedUtils.java:1419)
>       at 
> org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils.isMergeRequired(GenMapRedUtils.java:1645)
>       at 
> org.apache.hadoop.hive.ql.parse.spark.GenSparkUtils.processFileSink(GenSparkUtils.java:313)
>       at 
> org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.generateTaskTree(SparkCompiler.java:180)
>       at 
> org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:199)
>       at 
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:9514)
>       at 
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
>       at 
> org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:74)
>       at 
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:207)
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:413)
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:309)
>       at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:984)
>       at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1049)
>       at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921)
>       at org.apache.hadoop.hive.ql.Driver.run(Driver.java:911)
>       at 
> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:265)
>       at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:217)
>       at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:427)
>       at 
> org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:800)
>       at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:694)
>       at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:633)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> {noformat}
> Apparently, GenMapRedUtils::addStatsTask only assumes either MapredWork or 
> TezWork, and since we are introducing SparkWork, this need to be fixed.



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