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https://issues.apache.org/jira/browse/HIVE-13264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vaibhav Gumashta updated HIVE-13264:
------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.2.0
Status: Resolved (was: Patch Available)
Committed to master. Thanks [~nithinmahesh] for the work.
> JDBC driver makes 2 Open Session Calls for every open session
> -------------------------------------------------------------
>
> Key: HIVE-13264
> URL: https://issues.apache.org/jira/browse/HIVE-13264
> Project: Hive
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 1.2.1, 2.0.1
> Reporter: NITHIN MAHESH
> Assignee: NITHIN MAHESH
> Labels: jdbc
> Fix For: 2.2.0
>
> Attachments: HIVE-13264.1.patch, HIVE-13264.2.patch,
> HIVE-13264.3.patch, HIVE-13264.4.patch, HIVE-13264.5.patch,
> HIVE-13264.6.patch, HIVE-13264.6.patch, HIVE-13264.7.patch,
> HIVE-13264.8.patch, HIVE-13264.9.patch, HIVE-13264.patch
>
>
> When HTTP is used as the transport mode by the Hive JDBC driver, we noticed
> that there is an additional open/close session just to validate the
> connection.
>
> TCLIService.Iface client = new TCLIService.Client(new
> TBinaryProtocol(transport));
> TOpenSessionResp openResp = client.OpenSession(new TOpenSessionReq());
> if (openResp != null) {
> client.CloseSession(new
> TCloseSessionReq(openResp.getSessionHandle()));
> }
>
> The open session call is a costly one and should not be used to test
> transport.
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