Added getShardIDs and createMultiCursor but left listWithMultiCursor because the function became uglier with that :) But funlen is fine with this function anyway
Why did you choose to add a method instead of extending a ListWithCursor then?
ListWithCursor tells the client that shards won't be read concurrently wherever ListWithMultiCursor tells…
If I say count=5, will it iterate over 5 random shards?
Yes, if len(shards) == 5. But if count == 5 and len(shards) == 4, then count gets 4. One cursor matches to one shard
As…
Briefly: no way
When I tried many ways to manage reading shards from the policer but nothing succeeded. If ListWithCursor is used, then shards are re-read few times. We don't need it
Yes, it can. You can check ListWithCursor implementation that has the same logic.
Also, you can check shardPolicyWorker to understand the principle of cursor usage
I think it's more natural to return nil instead &res in the error case
