Error 03113 while executing java procedure with pl.sql

Question

Hi All,
I am using oracle 10g on linux server. Client machine is on xp. I hava a java procedure which executes the sqlldr on server. Earlier it was working fine, but after reinstalling the oracle 10g on server. It started giving "end of Communication channel error". I am not aware that what paramete has to set. Can some body put light on this error.
Bye
Sachin

Answer 1

According to the documentation:
ORA-01555: snapshot too old: rollback segment number string with name "string" too small
Cause: Rollback records needed by a reader for consistent read are overwritten by other writers.
Action: If in Automatic Undo Management mode, increase the setting of UNDO_RETENTION. Otherwise, use larger rollback segments.
Error: ORA-01555: snapshot too old (rollback segment too small)
Cause: This error can be caused by one of the problems, as described below.
Action: The options to resolve this Oracle error are:
This error can be the result of there being insufficient rollback segments.
A query may not be able to create the snapshot because the rollback data is not available. This can happen when there are many transactions that are modifying data, and performing commits and rollbacks. Rollback data is overwritten when the rollback segments are too small for the size and number of changes that are being performed.
To correct this problem, make more larger rollback segments available. Your rollback data for completed transactions will be kept longer.
This error can be the result of programs not closing cursors after repeated FETCH and UPDATE statements.
To correct this problem, make sure that you are closing cursors when you no longer require them.
This error can occur if a FETCH is executed after a COMMIT is issued.
The number of rollback records created since the last CLOSE of your cursor will fill the rollback segments and you will begin overwriting earlier records.