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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14901) HiveServer2: Use user supplied fetch size to determine #rows serialized in tasks
Date Mon, 06 Feb 2017 09:50:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15853769#comment-15853769
] 

Hive QA commented on HIVE-14901:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12851129/HIVE-14901.2.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 10226 tests executed
*Failed tests:*
{noformat}
TestDerbyConnector - did not produce a TEST-*.xml file (likely timed out) (batchId=235)
org.apache.hadoop.hive.cli.TestEncryptedHDFSCliDriver.testCliDriver[encryption_join_with_different_encryption_keys]
(batchId=159)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_varchar_simple]
(batchId=153)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query14] (batchId=223)
org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query23] (batchId=223)
org.apache.hadoop.hive.llap.daemon.impl.TestTaskExecutorService.testWaitQueuePreemption (batchId=277)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/3392/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/3392/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-3392/

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: 6 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12851129 - PreCommit-HIVE-Build

> HiveServer2: Use user supplied fetch size to determine #rows serialized in tasks
> --------------------------------------------------------------------------------
>
>                 Key: HIVE-14901
>                 URL: https://issues.apache.org/jira/browse/HIVE-14901
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HiveServer2, JDBC, ODBC
>    Affects Versions: 2.1.0
>            Reporter: Vaibhav Gumashta
>            Assignee: Norris Lee
>         Attachments: HIVE-14901.1.patch, HIVE-14901.2.patch, HIVE-14901.patch
>
>
> Currently, we use {{hive.server2.thrift.resultset.max.fetch.size}} to decide the max
number of rows that we write in tasks. However, we should ideally use the user supplied value
(which can be extracted from the ThriftCLIService.FetchResults' request parameter) to decide
how many rows to serialize in a blob in the tasks. We should however use {{hive.server2.thrift.resultset.max.fetch.size}}
to have an upper bound on it, so that we don't go OOM in tasks and HS2. 



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