Advanced Topics › Enqueue Conflict Management Facility › How You Tell ECMF Whether to Issue Conflict Messages › Receive a Single Set of Conflict Messages

Receive a Single Set of Conflict Messages

ECMF uses the values you set through the REPORTAFTER and REPORTCYCLE parameters only for unconditional ENQ requests: that is, ENQ requests that specify RET=NONE or RET=HAVE. If a conflict involves one or more conditional ENQ requests in which RET=USE is specified, then ECMF issues a single set of messages to notify the participants about the conflict.

Note: For more information about the RET parameter on an ENQ request, see the IBM documentation.

Suppression of Redundant Conflict Messages

ECMF may suppress redundant ENQ conflict messages. If the same victim ASID and TCB contend more than once message within 60 seconds for the same QNAME/RNAME, and the ENQ requests are conditional, then ECMF will suppress any message beyond the first one, until the 60 seconds expires. The 60 second window is internally hard-coded, and cannot be customized through CA MIM parameters.