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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