Hi,
Suppose I have a stream of logs and I want to count them by minute.
The result is like:
2014-10-26 18:38:00 100
2014-10-26 18:39:00 150
2014-10-26 18:40:00 200
One way to do this is to set the batch interval to 1 min, but each
batch would be quite large.
Or I can use updateStateByKey where
Hi ,
You can use Redis to store the keys and value as count by doing an update
function whenever you receive that minute key , being an in memory database it
would faster than SQL .You can do an update at the end of each batch to update
the count of the key if it exists or create in case
