Zero reblance interval

I used the param rebalance_interval 3m,and then I used program to improt data.But I found the rebalance did not occur during importing data.there is some problem?
I want to know when I mutate data, the data will store in cache or disk

I used /state endpoint,and got the result


there is no space in predicate. but I can query it.
I also got zero log about rebalance

why the size is 0

I want to know when I mutate data, the data will store in cache or disk

Disk.

I don’t know when I mutate data continually,why the rebalance check the group size is 0.
I used drop all.and got the result
image

but when I use /state endpoint,got the result


the predicate and the space still exist.

I used ratel


it show nothing.

how did it work between zero and alpha. or there is some problem?