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https://issues.apache.org/jira/browse/HIVE-13149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15168060#comment-15168060
]
Hive QA commented on HIVE-13149:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12789631/HIVE-13149.1.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 16 failed/errored test(s), 9814 tests
executed
*Failed tests:*
{noformat}
TestJdbcWithMiniHS2 - did not produce a TEST-*.xml file
TestMsgBusConnection - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.org.apache.hadoop.hive.cli.TestCliDriver
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_cbo_stats
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_correlationoptimizer1
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_escape_clusterby1
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_index_auto_mult_tables_compact
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_limit_pushdown_negative
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_2
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_lock2
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_set_metaconf
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_conv
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_udf_rpad
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testNegativeCliDriver_authorization_uri_import
org.apache.hadoop.hive.metastore.TestMetastoreVersion.testVersionRestriction
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/7092/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/7092/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-7092/
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: 16 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12789631 - PreCommit-HIVE-TRUNK-Build
> Remove some unnecessary HMS connections from HS2
> -------------------------------------------------
>
> Key: HIVE-13149
> URL: https://issues.apache.org/jira/browse/HIVE-13149
> Project: Hive
> Issue Type: Sub-task
> Components: HiveServer2
> Affects Versions: 2.0.0
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Attachments: HIVE-13149.1.patch
>
>
> In SessionState class, currently we will always try to get a HMS connection
> in {{start(SessionState startSs, boolean isAsync, LogHelper console)}}
> regardless of if the connection will be used later or not.
> When SessionState is accessed by the tasks in TaskRunner.java, although most
> of the tasks other than some of them like StatsTask, don't need to access
> HMS, currently a new HMS connection will be established for each thread. If
> HiveServer2 is configured to run in parallel and the query involves many
> tasks, then the connections are created but unused.
> {noformat}
> @Override
> public void run() {
> runner = Thread.currentThread();
> try {
> OperationLog.setCurrentOperationLog(operationLog);
> SessionState.start(ss);
> runSequential();
> {noformat}
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