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From 杨果 (Created) (JIRA) <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3695) Error:ORA 00911 invalid character(the result of mapreduce insert into oracle)
Date Thu, 19 Jan 2012 09:45:41 GMT
Error:ORA 00911 invalid character(the result of mapreduce insert into oracle)
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                 Key: MAPREDUCE-3695
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3695
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: jobtracker
    Affects Versions: 1.0.0, 0.21.0
            Reporter: 杨果


Exception occurred when the result of mapreduce insert into oracle except mysql.


[org.apache.hadoop.mapred.Child.main(Child.java:234)] Exception running child : java.io.IOException:
ORA-00911: invalid character at org.apache.hadoop.mapreduce.lib.db.DBOutputFormat$DBRecordWriter.close(DBOutputFormat.java:103)
at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:545) at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:385)
at org.apache.hadoop.mapred.Child$4.run(Child.java:217) at java.security.AccessController.doPrivileged(Native
Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:742)
at org.apache.hadoop.mapred.Child.main(Child.java:211) 2012-01-19 15:41:22 [INFO]-[main]-[org.apache.hadoop.mapred.Task]-[org.apache.hadoop.mapred.Task.taskCleanup(Task.java:996)]
Runnning cleanup for the task

	
The exception in the 161 line of the DBOutputFormat.java,modify as follows and exception fixed.
the reason is more than a semicolon.

  public String constructQuery(String table, String[] fieldNames) {
    if(fieldNames == null) {
      throw new IllegalArgumentException("Field names may not be null");
    }

    StringBuilder query = new StringBuilder();
    query.append("INSERT INTO ").append(table);

    if (fieldNames.length > 0 && fieldNames[0] != null) {
      query.append(" (");
      for (int i = 0; i < fieldNames.length; i++) {
        query.append(fieldNames[i]);
        if (i != fieldNames.length - 1) {
          query.append(",");
        }
      }
      query.append(")");
    }
    query.append(" VALUES (");

    for (int i = 0; i < fieldNames.length; i++) {
      query.append("?");
      if(i != fieldNames.length - 1) {
        query.append(",");
      }
    }
    query.append(");");

    return query.toString();
  }

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