Hi
Is there any SchedulerConnector for mongoDB, or instruction how to write such one
There is no ready to use connector for mongoDB
It is possible to write mongoDB adapter, but because it uses non-sql approach, it will require a lot of code ( because of existing connector structure, which is created for SQL based dbs )
If you want to use mongo - I will recommend to not implement a full connector solution, but just write a tiny layer which will take incoming data, exec operations against DB and return status back to client.
You can check document here - viewtopic.php?f=19&t=24923
It describes details of connector protocol ( you need only data saving part )
Also, scheduler can be used without connector|dataprocessor. It possible to use custom ajax calls for data saving - it may be more simple way in your case.