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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-16746) Reduce number of index lookups for same table in IndexWhereTaskDispatcher
Date Wed, 24 May 2017 06:45:04 GMT


Hive QA commented on HIVE-16746:

Here are the results of testing the latest attachment:

{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), 10749 tests executed
*Failed tests:*
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[subquery_scalar] (batchId=151)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr] (batchId=144)

Test results:
Console output:
Test logs:

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

This message is automatically generated.

ATTACHMENT ID: 12869580 - PreCommit-HIVE-Build

> Reduce number of index lookups for same table in IndexWhereTaskDispatcher
> -------------------------------------------------------------------------
>                 Key: HIVE-16746
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-16746.1.patch
> {{IndexWhereTaskDispatcher}} is used when {{hive.optimize.index.filter=true}}. It lists
all indices for the table and depending on the query complexity, this ends up being in the
hotpath. For e.g, Q14 explain plan takes 180-200 seconds and this index querying multiple
times for same tables take up 30-40 seconds. This function was invoked around 24000 times
for same set of tables.

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