Canvas as a replication engine?

Canvas Canvas Questions
1

Hi there,

Just would like to get some idea whether it is possible to use Canvas to do replication, I know Canvas can do READ and WRITE as a separate action, however, is there any possibility that we can write a javascript to READ data from a View definition created one Server A, and then WRITE the same piece of data to the same View definition but on Server B?

Any input would be appreciated.

2

Hi Tat,

I think it’s absolutely possible.

I am not sure if it is the best way to do it though.

  • Not sure if canvas allows us to schedule JS functions (If not, we would need a user to log into both instances and trigger it)
  • The JS code would normally be executed in the browser on the client-side, thus we would have to send the whole data through the network twice: Server A → Client → Server B.

A python script (based on TM1py) could be a more elegant approach

  • We could run it on the server side → No (or less) network traffic. This should impact the performance significantly.
  • We would skip the middleman (Canvas Application Server), thus slightly more performance
  • Could be scheduled through a native TM1 chore

If Canvas allows us to execute JS scripts on the Server side, python and JS are more or less equally suited for this task IMO.

Cheers,

Marius

3

Hmmm…understand what you mean, then Canvas probably not the place doing this kind of stuff.

Thanks for the explanation.