Locked SMQR queues when High load of idoc messages

Dear all forum users,

We have the following simple scenario :

ECC 6.0 > Idoc MATMAS (reduced one) > XI > XML Third party tool format.

In ECC 6.0 creation of idoc depends on change pointer mechanism. In case of mass modification , a lot of messages can be created and in this kind of high load period we have a lot of errors that occur in processing RFC queue in our central Integration engine.

Error found are :

- "ThCPIC: ThICommit / connection closed (no data)"

- "COMMIT/ROLLBACK error on "DEFAULT" database connection"

It is not a fatal error since the scheduling of RSQIWKEX program restart queues with error automatically but is there a way to avoid these errors ?? Is it a pb of tuning ?

Thanks a lot.

Jean-Charles