[MAPREDUCE-3695] Error:ORA 00911 invalid character(the result of mapreduce insert into oracle)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.0-alpha
• Component/s: mrv2
• Labels: patch
• Assignee: Unassigned
• Reporter: 杨果
• Created: 19/Jan/12 09:45
• Updated: 20/May/15 22:58

Description

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();
}