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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9423) HiveServer2: Provide the user with different error messages depending on the Thrift client exception code
Date Tue, 27 Sep 2016 11:50:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15525880#comment-15525880
] 

Hive QA commented on HIVE-9423:
-------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12830462/HIVE-9423.5.patch

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

{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 10641 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[acid_mapjoin]
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[ctas]
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vector_join_part_col_char]
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainuser_3]
org.apache.hadoop.hive.metastore.TestMetaStoreMetrics.testMetaDataCounts
org.apache.hive.jdbc.TestJdbcWithMiniHS2.testAddJarConstructorUnCaching
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/1312/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/1312/console
Test logs: http://ec2-204-236-174-241.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-Build-1312/

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: 12830462 - PreCommit-HIVE-Build

> HiveServer2: Provide the user with different error messages depending on the Thrift client
exception code
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9423
>                 URL: https://issues.apache.org/jira/browse/HIVE-9423
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>    Affects Versions: 0.12.0, 0.13.0, 0.14.0, 0.15.0
>            Reporter: Vaibhav Gumashta
>            Assignee: Peter Vary
>         Attachments: HIVE-9423.2.patch, HIVE-9423.3.patch, HIVE-9423.4.patch, HIVE-9423.5.patch,
HIVE-9423.patch
>
>
> An example of where it is needed: it has been reported that when # of client connections
is greater than   {{hive.server2.thrift.max.worker.threads}}, HiveServer2 stops accepting
new connections and ends up having to be restarted. This should be handled more gracefully
by the server and the JDBC driver, so that the end user gets aware of the problem and can
take appropriate steps (either close existing connections or bump of the config value or use
multiple server instances with dynamic service discovery enabled). Similarly, we should also
review the behaviour of background thread pool to have a well defined behavior on the the
pool getting exhausted. 
> Ideally implementing some form of general admission control will be a better solution,
so that we do not accept new work unless sufficient resources are available and display graceful
degradation under overload.



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