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https://issues.apache.org/jira/browse/HIVE-15422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746753#comment-15746753
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Hive QA commented on HIVE-15422:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12843119/HIVE-15422.2.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 11 failed/errored test(s), 10815 tests
executed
*Failed tests:*
{noformat}
TestVectorizedColumnReaderBase - did not produce a TEST-*.xml file (likely
timed out) (batchId=251)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample2] (batchId=5)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample4] (batchId=15)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample6] (batchId=61)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample7] (batchId=60)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[sample9] (batchId=38)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_schema_evol_3a]
(batchId=135)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[transform_ppr2]
(batchId=135)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[metadataonly1]
(batchId=150)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[stats_based_fetch_decision]
(batchId=151)
org.apache.hadoop.hive.ql.security.TestStorageBasedMetastoreAuthorizationReads.testReadTableFailure
(batchId=209)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2565/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2565/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2565/
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: 11 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12843119 - PreCommit-HIVE-Build
> HiveInputFormat::pushProjectionsAndFilters paths comparison generates huge
> number of objects for partitioned dataset
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-15422
> URL: https://issues.apache.org/jira/browse/HIVE-15422
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Minor
> Attachments: HIVE-15422.1.patch, HIVE-15422.2.patch,
> Profiler_Snapshot_HIVE-15422.png
>
>
> When executing the following query in LLAP (single instance) in a 5 node
> cluster, lots of GC pressure was observed.
> {noformat}
> select a.type, a.city , a.frequency, b.city, b.country, b.lat, b.lon
> from (select 'depart' as type, origin as city, count(origin) as frequency
> from flights
> group by origin
> order by frequency desc, type) as a
> left join airports as b on a.city = b.iata
> order by frequency desc;
> {noformat}
> Flights table has got around 7000+ partitions in S3. Profiling revealed large
> amount of objects created just in path comparisons in HiveInputFormat.
> HIVE-15405 reduces number of path comparisons at FileUtils, but it still ends
> up doing lots of comparisons in HiveInputFormat::pushProjectionsAndFilters.
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