Hi，
My sample code is like this：
package calcite;
import dwf3s.PGConnection;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import javax.sql.DataSource;
import org.apache.calcite.adapter.jdbc.JdbcSchema;
import org.apache.calcite.jdbc.CalciteConnection;
import org.apache.calcite.schema.Schema;
import org.apache.calcite.schema.SchemaPlus;
import org.apache.commons.dbcp2.BasicDataSource;
public class CalciteConnectionPGAllTest {
public static void main(String[] args) throws ClassNotFoundException,
SQLException {
for (int i = 0; i < 10000; i++) {
Class.forName("org.apache.calcite.jdbc.Driver");
Properties info = new Properties();
info.setProperty("lex", "JAVA");
Connection connection = DriverManager.getConnection("jdbc:calcite:",
info);
CalciteConnection calciteConnection =
connection.unwrap(CalciteConnection.class);
SchemaPlus rootSchema = calciteConnection.getRootSchema();
// 本地Schema.
// Schema schema = ReflectiveSchema.create(calciteConnection, rootSchema,
"hr",
// new HrSchema());
/**
* 此处为不同数据源的实际操作部分，BasicDataSource为Apache DBCP的连接池
*/
Class.forName("org.postgresql.Driver");
BasicDataSource dataSource = new BasicDataSource();
dataSource.setUrl("jdbc:postgresql://192.168.130.7:5432/postgres");
dataSource.setUsername("postgres");
dataSource.setPassword("postgres");
dataSource.addConnectionProperty("remarks", "true");
dataSource.addConnectionProperty("useInformationSchema", "true");
Schema schema = JdbcSchema.create(rootSchema, "hr", dataSource, null,
"pgtest");
rootSchema.add("hr", schema);
Statement statement = calciteConnection.createStatement();
ResultSet resultSet = statement.executeQuery("select * from hr.dwf3s");
System.out.println(String.format("第%s个客户端", i));
resultSet.close();
statement.close();
connection.close();
}
}
}
Best Regards，
Wangminhao Gou
> -----原始邮件-----
> 发件人: "勾王敏浩" <gwm...@mails.tsinghua.edu.cn>
> 发送时间: 2019-05-28 10:39:21 (星期二)
> 收件人: dev@calcite.apache.org
> 抄送:
> 主题: calcite close connection
>
> Hi,
> I found that when I close the calciteConnection,the subSchema connection
> is not auto-closed...
>
>
> Best Regards
> Wangminhao Gou
