Group items tagged

PARALLEL PROCESSING Ensure the system has enough shared memory. GoldenGate runs as an Oracle process. Each Extract or Replicat process requires upwards of 25-50 MB of system shared memory. This means less memory for the Oracle DBMS, especially the SGA. Use parallel Replicat groups on the target system to reduce latency thru parallelism. Consider parallel Extract groups for tables that are fetch intensive (e.g., those that trigger SQL procedures). Group tables that have R.I. to each other in the same Extract-Replicat pair. Pair each Replicat with its own trail and corresponding Extract process. When using parallel Replicats, configure each one to process a different portion of the overall data.

PASSTHRU PARAMETER Consider using this parameter if there is no filtering, conversion or mapping required and you’re using DATAPUMP. In pass-through mode, the Extract process does not look up table definitions, either from the database or from a data definitions file. Pass-through mode increases the throughput of the data pump, because all of the functionality that looks up object definitions is bypassed. This saves database fetches to improve performance.

INSERTAPPEND A new GoldenGate 10.4 feature. Use for large transactions . Puts records at end of table rather than doing a more costly insert into other areas of table.