3.5.3 PolyServe MxS Oracle Database Solution Pack Release Notes (August 2008)

Installation and Operation 9
Open Issues
When more than one DBWRITER is used and ODM is linked to Oracle, an
issue in Oracle 10gR2 causes one of the DBWRITERs to maintain a
reference to a file when it is dropped and deleted. The instance then
needs to be stopped to reclaim the space from the deleted file.
The workaround for this issue is to use only one DBWRITER. Oracle
specifies that it is unnecessary to use more than one DBWRITER for most
cases.