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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-19847) Create Separate getInputSummary Service
Date Tue, 12 Jun 2018 11:19:00 GMT


Hive QA commented on HIVE-19847:

Here are the results of testing the latest attachment:

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 12 failed/errored test(s), 14519 tests executed
*Failed tests:*
org.apache.hadoop.hive.ql.stats.TestStatsUpdaterThread.testQueueingWithThreads (batchId=277)
org.apache.hive.jdbc.TestTriggersTezSessionPoolManager.testTriggerHighBytesWrite (batchId=246)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testMultipleTriggers2 (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerCustomCreatedFiles (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerCustomNonExistent (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerCustomReadOps (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerHighBytesRead (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerHighShuffleBytes (batchId=243)
org.apache.hive.jdbc.TestTriggersWorkloadManager.testTriggerVertexRawInputSplitsNoKill (batchId=243)

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.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 12 tests failed

This message is automatically generated.

ATTACHMENT ID: 12927341 - PreCommit-HIVE-Build

> Create Separate getInputSummary Service
> ---------------------------------------
>                 Key: HIVE-19847
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2
>    Affects Versions: 3.0.0, 4.0.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Major
>         Attachments: HIVE-19847.1.patch, HIVE-19847.2.patch
> The Hive {{}} file has taken on a life of
its own.  We should consider separating out the various components into their own classes.
 For this ticket, I propose separating out the {{getInputSummary}} functionality into its
own class.
> There are several issues with the current implementation:
> # It is [synchronized|].
 Only one query can get file input summary at a time.  For a query which deals with a large
data set with a large number of files, this can block other queries for a long period of time.
 This is especially painful when most queries use a small data set, but a large data set is
submitted on occasion.
> # For each query, time is spend setting up and tearing down a ThreadPool
> # It uses deprecated code
> I propose breaking it out into its own class and creating a single thread pool that all
queries pull from.  In this way, the bottle neck will be one the number of available threads,
not on a single query and if a big query is running and a small query is also submitted, the
smaller query will be able to proceed.

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