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Posted to issues@tajo.apache.org by "Jongyoung Park (JIRA)" <ji...@apache.org> on 2015/05/22 10:42:17 UTC
[jira] [Updated] (TAJO-1619) JDBC program is stuck after closing
[ https://issues.apache.org/jira/browse/TAJO-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jongyoung Park updated TAJO-1619:
---------------------------------
Attachment: tajo-eminency-worker-Jongyoungui-MBP.log
tajo-eminency-master-Jongyoungui-MBP.log
dump
> 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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