[jira] [Commented] (TAJO-1619) JDBC program is stuck after closing

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558613#comment-14558613 ] 

ASF GitHub Bot commented on TAJO-1619:
--------------------------------------

GitHub user jihoonson opened a pull request:

    https://github.com/apache/tajo/pull/584

    TAJO-1619: JDBC program is stuck after closing

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jihoonson/tajo-2 TAJO-1619

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/tajo/pull/584.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #584
    
----
commit 7033cb452e00fb49b95941fec1f98c96c3e024ec
Author: Jihoon Son <ji...@apache.org>
Date:   2015-05-26T02:01:27Z

    TAJO-1619

----


> JDBC program is stuck after closing
> -----------------------------------
>
>                 Key: TAJO-1619
>                 URL: https://issues.apache.org/jira/browse/TAJO-1619
>             Project: Tajo
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 0.10.0
>            Reporter: Jongyoung Park
>         Attachments: dump, tajo-eminency-master-Jongyoungui-MBP.log, tajo-eminency-worker-Jongyoungui-MBP.log
>
>
> {code:title=JdbcTest.java|borderStyle=solid}
> public class JdbcTest {
>   public static void main(String [] args) throws ClassNotFoundException, SQLException {
>     Class.forName("org.apache.tajo.jdbc.TajoDriver");
>     Connection conn = DriverManager.getConnection("jdbc:tajo://127.0.0.1:26002/tpch");
>     Statement stmt = null;
>     ResultSet rs = null;
>     try {
>       stmt = conn.createStatement();
>       rs = stmt.executeQuery("select count(*) from customer");
>       System.out.println(rs.next());
>       System.out.println(rs.getInt(1));
>     } catch (SQLException e) {
>       System.err.println(e.getMessage());
>     } finally {
>       System.out.println("close start");
>       if (rs != null) rs.close();
>       System.out.println("rs close end");
>       if (stmt != null) stmt.close();
>       System.out.println("stmt close end");
>       if (conn != null) conn.close();
>       System.out.println("conn close end");
>     }
>   }
> }
> {code}
> When the code above is executed, it is stuck after printing 'conn close end'.
> I attache log and thread dump.



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