Configure the total number of DTX participants available in SAP ASE using the number of dtx participants configuration parameter.
number of dtx participants sets the total number of remote transactions that the SAP ASE transaction coordination service can propagate and coordinate at one time.
By default, SAP ASE can coordinate 500 remote transactions. Setting number of dtx participants to a smaller number reduces the number of remote transactions that the server can manage. If no DTX participants are available, new distributed transactions will be unable to start. In-progress distributed transactions may abort if no DTX participants are available to propagate a new remote transaction.
Setting number of dtx participants to a larger number increases the number of remote transaction branches that SAP ASE can handle, but also consumes more memory.