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https://issues.apache.org/jira/browse/MAPREDUCE-3695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
杨果 updated MAPREDUCE-3695:
--------------------------
Status: Patch Available (was: Open)
> Error:ORA 00911 invalid character(the result of mapreduce insert into oracle)
> -----------------------------------------------------------------------------
>
> 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
> Labels: patch
>
> 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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