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Posted to issues@hive.apache.org by "NITHIN MAHESH (JIRA)" <ji...@apache.org> on 2016/05/07 00:48:12 UTC

[jira] [Updated] (HIVE-13264) JDBC driver makes 2 Open Session Calls for every open session

     [ https://issues.apache.org/jira/browse/HIVE-13264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

NITHIN MAHESH updated HIVE-13264:
---------------------------------
    Attachment: HIVE-13264.5.patch

> 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
>            Reporter: NITHIN MAHESH
>            Assignee: NITHIN MAHESH
>              Labels: jdbc
>         Attachments: HIVE-13264.1.patch, HIVE-13264.2.patch, HIVE-13264.3.patch, HIVE-13264.4.patch, HIVE-13264.5.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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