Lock list escalations: <count>
The number of row locks in a table is too high. The database system attempts to convert the row locks into a table lock.
You can specify the maximum number of possible row locks in the lock list in the general database parameter MAXLOCKS. The database system attempts to convert the row lock to a table lock if a task holds more than 0.1*MAXLOCKS row locks in a table. If too many escalations occur, increase the parameter value.
Whether escalations lead to problems depends strongly on the application in question. If escalations occur, check the application to see whether you can split any change transactions that lock a lot of rows into several individual transactions.