JDBC Add Batch로 멀티 쿼리를 실행하려고 그랬으나 지원하지 않는다는 것을 확인함. → 쿼리문을 만들어서 Impala Shell에서 처리를 하는 것이 가장 적합한 것으로 보임.
import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class SpringJdbcTest { public static void main(String[] args) throws SQLException { com.cloudera.impala.jdbc.DataSource ds = new com.cloudera.impala.jdbc.DataSource(); ds.setURL("jdbc:impala://10.0.1.71:21050/default"); ds.setUserID("impala"); ds.setPassword("impala"); ds.setCustomProperty("AuthMech", "0"); Connection conn = ds.getConnection(); Statement stmt = conn.createStatement(); stmt.addBatch("SET SYNC_DDL=1"); stmt.addBatch("CREATE TABLE STUDENT(STUDENT_ID STRING) PARTITION BY HASH (STUDENT_ID) PARTITIONS 10 STORED AS KUDU"); stmt.addBatch("REFRESH STUDENT"); stmt.addBatch("INSERT INTO STUDENT (STUDENT_ID) VALUES('S101')"); stmt.addBatch("INSERT INTO STUDENT (STUDENT_ID) VALUES('S102')"); stmt.addBatch("INSERT INTO STUDENT (STUDENT_ID) VALUES('S103')"); stmt.addBatch("INSERT INTO STUDENT (STUDENT_ID) VALUES('S104')"); stmt.executeBatch(); ResultSet rs = stmt.executeQuery("SELECT * FROM STUDENT"); while (rs.next()) { System.out.println(rs.getString(0)); } stmt.close(); conn.close(); } }
상기 코드를 실행하면 다음과 같이 에러 메시지가 출력됨
Exception in thread "main" java.sql.SQLException: Error message not found: NOT_IMPLEMENTED. Can't find resource for bundle java.util.PropertyResourceBundle, key NOT_IMPLEMENTED at com.cloudera.impala.hivecommon.dataengine.HiveJDBCDataEngine.prepareBatch(Unknown Source) at com.cloudera.impala.jdbc.common.SStatement.executeAnyBatch(Unknown Source) at com.cloudera.impala.jdbc.common.BaseStatement.executeBatch(Unknown Source) Caused by: com.cloudera.impala.support.exceptions.GeneralException: Error message not found: NOT_IMPLEMENTED. Can't find resource for bundle java.util.PropertyResourceBundle, key NOT_IMPLEMENTED ... 3 more