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https://issues.apache.org/jira/browse/HIVE-15390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15779755#comment-15779755
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Hive QA commented on HIVE-15390:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12842473/HIVE-15390.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 10896 tests
executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out)
(batchId=234)
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)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_5]
(batchId=92)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2729/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2729/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2729/
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: 4 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12842473 - PreCommit-HIVE-Build
> Orc reader unnecessarily reading stripe footers with
> hive.optimize.index.filter set to true
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-15390
> URL: https://issues.apache.org/jira/browse/HIVE-15390
> Project: Hive
> Issue Type: Bug
> Components: ORC
> Affects Versions: 1.2.1
> Reporter: Abhishek Somani
> Assignee: Abhishek Somani
> Attachments: HIVE-15390.1.patch, HIVE-15390.patch
>
>
> In a split given to a task, the task's orc reader is unnecessarily reading
> stripe footers for stripes that are not its responsibility to read. This is
> happening with hive.optimize.index.filter set to true.
> Assuming one split per task(no tez grouping considered), a task should not
> need to read beyond the split's end offset. Even in some split computation
> strategies where a split's end offset can be in the middle of a stripe, it
> should not need to read more than one stripe beyond the split's end offset(to
> fully read a stripe that started in it). However I see that some tasks make
> unnecessary filesystem calls to read all the stripe footers in a file from
> the split start offset till the end of the file.
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