To verify the setting, use the following command db. To set the isolation level to Currently Committed, use the following command db. CURCOMMIT ON. If the database transaction log is often full, increase the database configuration parameter to allow for a larger log file. A larger log file requires more space, but it reduces the need for applications to retry the operation. You should set the log file size to at least 1. Use the following commands db. LOGFILSIZ 1. 00. 00. LOGPRIMARY 5. 0. If the IBM DB2 JCC driver is chosen for the data source, the progressive. Streaming2 property must be added to the property list of the data source. In effect, progressive streaming will be disabled. Without this property setting, MDS may run into issues in accessing document contents saved in a large object LOB column in the MDS repository.