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https://issues.apache.org/jira/browse/HIVE-13754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15346778#comment-15346778
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Hive QA commented on HIVE-13754:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12812611/HIVE-13754.1.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 10263 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_constantPropagateForSubQuery
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_12
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_13
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver_vector_complex_all
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver_vector_complex_join
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_index_bitmap3
org.apache.hadoop.hive.llap.tezplugins.TestLlapTaskSchedulerService.testDelayedLocalityNodeCommErrorImmediateAllocation
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/233/testReport
Console output:
https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/233/console
Test logs:
http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-233/
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: 7 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12812611 - PreCommit-HIVE-MASTER-Build
> Fix resource leak in HiveClientCache
> ------------------------------------
>
> Key: HIVE-13754
> URL: https://issues.apache.org/jira/browse/HIVE-13754
> Project: Hive
> Issue Type: Bug
> Components: Clients
> Affects Versions: 1.2.1, 2.0.0
> Reporter: Chris Drome
> Assignee: Chris Drome
> Attachments: HIVE-13754-branch-1.patch, HIVE-13754.1-branch-1.patch,
> HIVE-13754.1.patch, HIVE-13754.patch
>
>
> Found that the {{users}} reference count can go into negative values, which
> prevents {{tearDownIfUnused}} from closing the client connection when called.
> This leads to a build up of clients which have been evicted from the cache,
> are no longer in use, but have not been shutdown.
> GC will eventually call {{finalize}}, which forcibly closes the connection
> and cleans up the client, but I have seen as many as several hundred open
> client connections as a result.
> The main resource for this is caused by RetryingMetaStoreClient, which will
> call {{reconnect}} on acquire, which calls {{close}}. This will decrement
> {{users}} to -1 on the reconnect, then acquire will increase this to 0 while
> using it, and back to -1 when it releases it.
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