markus makela, johan.wikman Should MaxScale be not started in case of thread count parameter of -1 or does it start with a default number of threads ?

Thanks
Dipti

It shouldn't start at all.

A general policy regarding configuration issues is needed.

• What kind of errors should prevent maxscale from starting.
• What kind of errors should cause a warning being logged and maxscale starting with some default behaviour.
• What kind of errors should be ignored with a notice being logged.

As far as the threads issue is concerned a reasonable approach would be:

• If the argument is a positive integer less than or equal to the number of cores, then that many threads are used.
• If the argument is a positive integer larger than the number of cores, then a warning is logged and as many threads as there are cores is used.
• If the argument is 0, then as many threads as there are cores is used.
• If the threads entry is missing, then we behave as if 0 has been specified.
• Otherwise an error is logged and maxscale fails to start.