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https://issues.apache.org/jira/browse/HIVE-2327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14543373#comment-14543373
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Hive QA commented on HIVE-2327:
-------------------------------
{color:red}Overall{color}: -1 at least one tests failed
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12732752/HIVE-2327.2.patch
{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 8882 tests executed
*Failed tests:*
{noformat}
TestMiniSparkOnYarnCliDriver - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_index_auto_partitioned
org.apache.hadoop.hive.cli.TestEncryptedHDFSCliDriver.testCliDriver_encryption_insert_partition_static
{noformat}
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3888/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3888/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-3888/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
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: 12732752 - PreCommit-HIVE-TRUNK-Build
> Optimize REGEX UDFs with constant parameter information
> -------------------------------------------------------
>
> Key: HIVE-2327
> URL: https://issues.apache.org/jira/browse/HIVE-2327
> Project: Hive
> Issue Type: Improvement
> Components: UDF
> Reporter: Adam Kramer
> Assignee: Alexander Pivovarov
> Attachments: HIVE-2327.01.patch, HIVE-2327.2.patch
>
>
> There are a lot of UDFs which would show major performance differences if one
> assumes that some of its arguments are constant.
> Consider, for example, any UDF that takes a regular expression as input: This
> can be complied once (fast) if it's a constant, or once per row (wicked slow)
> if it's not a constant.
> Or, consider any UDF that reads from a file and/or takes a filename as input;
> it would have to re-read the whole file if the filename changes.
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