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  1. Hive
  2. HIVE-9813

Hive JDBC - DatabaseMetaData.getColumns method cannot find classes added with "add jar" command

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.2.0
    • Component/s: Metastore
    • Labels:
    • Release Note:
      We need to document the new API.

      Description

      Execute following JDBC client program:

      import java.sql.*;
      
      public class TestAddJar {
          private static Connection makeConnection(String connString, String classPath) throws ClassNotFoundException, SQLException
          {
              System.out.println("Current Connection info: "+ connString);
              Class.forName(classPath);
              System.out.println("Current driver info: "+ classPath);
              return DriverManager.getConnection(connString);
          }
      
          public static void main(String[] args)
          {
              if(2 != args.length)
              {
                  System.out.println("Two arguments needed: connection string, path to jar to be added (include jar name)");
                  System.out.println("Example: java -jar TestApp.jar jdbc:hive2://192.168.111.111 /tmp/json-serde-1.3-jar-with-dependencies.jar");
                  return;
              }
              Connection conn;
              try
              {
                  conn = makeConnection(args[0], "org.apache.hive.jdbc.HiveDriver");
                  System.out.println("-----------------------------------------------------------------------");
                  System.out.println("DONE");
      
                  System.out.println("-----------------------------------------------------------------------");
                  System.out.println("Execute query: add jar " + args[1] + ";");
                  Statement stmt = conn.createStatement();
                  int c = stmt.executeUpdate("add jar " + args[1]);
                  System.out.println("Returned value is: [" + c + "]\n");
      
                  System.out.println("-----------------------------------------------------------------------");
                  final String createTableQry = "Create table if not exists json_test(id int, content string) " +
                          "row format serde 'org.openx.data.jsonserde.JsonSerDe'";
                  System.out.println("Execute query:" + createTableQry + ";");
                  stmt.execute(createTableQry);
      
                  System.out.println("-----------------------------------------------------------------------");
                  System.out.println("----------------------------getColumn() Call---------------------------\n");
                  DatabaseMetaData md = conn.getMetaData();
                  System.out.println("Test get all column in a schema:");
                  ResultSet rs = md.getColumns("Hive", "default", "json_test", null);
                  while (rs.next()) {
                      System.out.println(rs.getString(1));
                  }
                  conn.close();
              }
              catch (ClassNotFoundException e)
              {
                  e.printStackTrace();
              }
              catch (SQLException e)
              {
                  e.printStackTrace();
              }
          }
      }
      

      Get Exception, and from metastore log:
      7:41:30.316 PM ERROR hive.log
      error in initSerDe: java.lang.ClassNotFoundException Class org.openx.data.jsonserde.JsonSerDe not found
      java.lang.ClassNotFoundException: Class org.openx.data.jsonserde.JsonSerDe not found
      at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1803)
      at org.apache.hadoop.hive.metastore.MetaStoreUtils.getDeserializer(MetaStoreUtils.java:183)
      at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_fields(HiveMetaStore.java:2487)
      at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_schema(HiveMetaStore.java:2542)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:606)
      at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:105)
      at com.sun.proxy.$Proxy5.get_schema(Unknown Source)
      at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_schema.getResult(ThriftHiveMetastore.java:6425)
      at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_schema.getResult(ThriftHiveMetastore.java:6409)
      at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
      at org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:110)
      at org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:107)
      at java.security.AccessController.doPrivileged(Native Method)
      at javax.security.auth.Subject.doAs(Subject.java:415)
      at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
      at org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java:556)
      at org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:118)
      at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:244)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:745)

        Attachments

        1. HIVE-9813.1.patch
          709 kB
          Yongzhi Chen
        2. HIVE-9813.3.patch
          709 kB
          Yongzhi Chen

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              • Assignee:
                ychena Yongzhi Chen
                Reporter:
                ychena Yongzhi Chen
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                Dates

                • Created:
                  Updated:
                  Resolved: