Redis scan returns nothing

[mehditvk8]

Can someone explain me why is this happen?

[clark-lt]

@mehditvk8 You should run scan until cursor is 0.

[mehditvk8]

The cursor value is 0 by default in redis-py scan function. Am I right?
I see this in redis-py client.py file:

def scan(self, cursor=0, match=None, count=None):
   ...

[clark-lt]

You should start to scan with "cursor = 0"
and You should run it until you get "cursor = 0" from the result of scan command.

[mgravell]

The count parameter isn't "get me this many results on every page"; it is more of a hint for "do this amount of work" - it can return more or less than that at any point (and frequently returns empty results, especially when used with a filter).

You need to use scan in a loop until you either have enough results, or you get back token 0 which means "all done".