What is the limitation to the number of the command handles when using JDBC data source to connect to DBMaker?
At present (DBMaster 4.16/4.20), DBMaker allows the maximum of the command handles is 257. But after 4.21, 4.22, 4.3 and later version, customer can set a configuration keyword – db_mxcmd in server side to enlarge this limitation. The default is 257, and the range is 1 ~ 32767. If you set this keyword too big, DBMaster should allocate more memory internally. Please consider your application used handle. Allocating too many handles will influence the performance in OS or Database.