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https://issues.apache.org/jira/browse/HIVE-21111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16739413#comment-16739413
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Hive QA commented on HIVE-21111:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12954270/HIVE-21111.1.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 15696 tests
executed
*Failed tests:*
{noformat}
TestAlterTableMetadata - did not produce a TEST-*.xml file (likely timed out)
(batchId=251)
TestReplAcidTablesWithJsonMessage - did not produce a TEST-*.xml file (likely
timed out) (batchId=251)
TestSemanticAnalyzerHookLoading - did not produce a TEST-*.xml file (likely
timed out) (batchId=251)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/15574/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/15574/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-15574/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 3 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12954270 - PreCommit-HIVE-Build
> ConditionalTask cannot be cast to MapRedTask
> --------------------------------------------
>
> Key: HIVE-21111
> URL: https://issues.apache.org/jira/browse/HIVE-21111
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Affects Versions: 2.1.1
> Reporter: zhuwei
> Assignee: zhuwei
> Priority: Major
> Attachments: HIVE-21111.1.patch
>
>
> We met error like this in our product environment:
> java.lang.ClassCastException: org.apache.hadoop.hive.ql.exec.ConditionalTask
> cannot be cast to org.apache.hadoop.hive.ql.exec.mr.MapRedTask
> at
> org.apache.hadoop.hive.ql.optimizer.physical.AbstractJoinTaskDispatcher.dispatch(AbstractJoinTaskDispatcher.java:173)
>
> There is a bug in function
> org.apache.hadoop.hive.ql.optimizer.physical.AbstractJoinTaskDispatcher.dispatch:
> if (tsk.isMapRedTask()) {
> Task<? extends Serializable> newTask = this.processCurrentTask((MapRedTask)
> tsk,
> ((ConditionalTask) currTask), physicalContext.getContext());
> walkerCtx.addToDispatchList(newTask);
> }
> In the above code, when tsk is instance of ConditionalTask,
> tsk.isMapRedTask() still can be true, but it cannot be cast to MapRedTask.
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