Check Use of Return Receipt Blocking

Unless you need receipt confirmation for all your transactions, disable RETURN RECEIPT BLOCKING. If you require receipt confirmation for some transactions, then set RETURN RECEIPT BY REQUEST and call the ttRepSyncSet procedure to enable the return receipt service for specific transactions. See RETURN RECEIPT BY REQUEST in the Oracle TimesTen In-Memory Database Replication Guide for details.

Note:

The performance degradation caused by return-receipt becomes less of an issue when multiple applications (or threads) are updating the database. If you must use return-receipt in a transaction, you can improve the performance of your application by using multiple threads to update the database. Though each thread must block for receipt confirmation, the other threads are free to make updates.