[
https://issues.apache.org/jira/browse/HIVE-15477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15765666#comment-15765666
]
Hive QA commented on HIVE-15477:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12844148/HIVE-15477.1.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 20 failed/errored test(s), 10825 tests
executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out)
(batchId=234)
TestVectorizedColumnReaderBase - did not produce a TEST-*.xml file (likely
timed out) (batchId=251)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[dbtxnmgr_showlocks]
(batchId=71)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[str_to_map] (batchId=58)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=133)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[transform_ppr2]
(batchId=135)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[stats_based_fetch_decision]
(batchId=151)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_2]
(batchId=93)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_3]
(batchId=92)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_4]
(batchId=93)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[exchange_partition_neg_incomplete_partition]
(batchId=84)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[exim_00_unsupported_schema]
(batchId=85)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query31]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query36]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query70]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query76]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query86]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query87]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query89]
(batchId=222)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query94]
(batchId=222)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/2660/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/2660/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-2660/
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: 20 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12844148 - PreCommit-HIVE-Build
> Provide options to adjust filter stats when column stats are not available
> --------------------------------------------------------------------------
>
> Key: HIVE-15477
> URL: https://issues.apache.org/jira/browse/HIVE-15477
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Affects Versions: 2.2.0
> Reporter: Chao Sun
> Assignee: Chao Sun
> Attachments: HIVE-15477.1.patch
>
>
> Currently when column stats are not available, Hive will assume the "worst"
> case by setting the # of output rows to be 1/2 of the # of input rows, for
> each predicate expression. This could be inaccurate, especially in the
> presence of multiple predicates chained by AND. We have found in some cases
> this could cause map join to have wrong ordering and thus fail with memory
> issue.
> One suggestion is to provide a config (such as {{hive.stats.filter.factor}})
> that can be used to control the percentage of rows emitted by a predicate
> expression.
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