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https://issues.apache.org/jira/browse/HIVE-11499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14950259#comment-14950259
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Hive QA commented on HIVE-11499:
--------------------------------
{color:red}Overall{color}: -1 at least one tests failed
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12765686/HIVE-11499.4.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 9657 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udaf_histogram_numeric
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
org.apache.hive.jdbc.TestJdbcWithMiniHS2.testAddJarDataNucleusUnCaching
org.apache.hive.jdbc.TestSSL.testSSLVersion
{noformat}
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5583/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5583/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5583/
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: 4 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12765686 - PreCommit-HIVE-TRUNK-Build
> Datanucleus leaks classloaders when used using embedded metastore with
> HiveServer2 with UDFs
> --------------------------------------------------------------------------------------------
>
> Key: HIVE-11499
> URL: https://issues.apache.org/jira/browse/HIVE-11499
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2, Metastore
> Affects Versions: 0.14.0, 1.0.0, 1.2.0, 1.1.0, 1.1.1, 1.2.1
> Reporter: Vaibhav Gumashta
> Assignee: Vaibhav Gumashta
> Attachments: HIVE-11499.1.patch, HIVE-11499.3.patch,
> HIVE-11499.4.patch, HS2-NucleusCache-Leak.tiff
>
>
> When UDFs are used, we create a new classloader to add the UDF jar. Similar
> to what hadoop's reflection utils does(HIVE-11408), datanucleus caches the
> classloaders
> (https://github.com/datanucleus/datanucleus-core/blob/3.2/src/java/org/datanucleus/NucleusContext.java#L161).
> JDOPersistanceManager factory (1 per JVM) holds on to a NucleusContext
> reference
> (https://github.com/datanucleus/datanucleus-api-jdo/blob/3.2/src/java/org/datanucleus/api/jdo/JDOPersistenceManagerFactory.java#L115).
> Until we call NucleusContext#close, the classloader cache is not cleared.
> In case of UDFs this can lead to permgen leak, as shown in the attached
> screenshot, where NucleusContext holds on to several URLClassloader objects.
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