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https://issues.apache.org/jira/browse/HIVE-15546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15806617#comment-15806617
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Hive QA commented on HIVE-15546:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12846126/HIVE-15546.3.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 10918 tests
executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out)
(batchId=233)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[case_sensitivity]
(batchId=61)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[input_testxpath]
(batchId=28)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[udf_coalesce]
(batchId=75)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=134)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_schema_evol_3a]
(batchId=135)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2828/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2828/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2828/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
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: 6 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12846126 - PreCommit-HIVE-Build
> Optimize Utilities.getInputPaths()
> ----------------------------------
>
> Key: HIVE-15546
> URL: https://issues.apache.org/jira/browse/HIVE-15546
> Project: Hive
> Issue Type: Sub-task
> Components: Hive
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Attachments: HIVE-15546.1.patch, HIVE-15546.2.patch,
> HIVE-15546.3.patch
>
>
> When running on blobstores (like S3) where metadata operations (like
> listStatus) are costly, Utilities.getInputPaths() can add significant
> overhead when setting up the input paths for an MR / Spark / Tez job.
> The method performs a listStatus on all input paths in order to check if the
> path is empty. If the path is empty, a dummy file is created for the given
> partition. This is all done sequentially. This can be really slow when there
> are a lot of empty partitions. Even when all partitions have input data, this
> can take a long time.
> We should either:
> (1) Just remove the logic to check if each input path is empty, and handle
> any edge cases accordingly.
> (2) Multi-thread the listStatus calls
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