Effect of updating Data Group using python SDK

Hello everyone,

 

I wrote a code that retrieve a data group from F5, do some modification and update it back. The data group list is 100K+ and are expected to reach 1M.

 

The Question is, will updating the data group have any effect on the connections before and during the update?

 

Another question, will storing the data in external data group has an advantage over storing in internal data group? or maybe the opposite?

 

Thank you.