Thanks to your kind reply. We use Ignite to Group By Query about time series data. However, I have seen a lot of data, so when I create TimeWindow through Expiry Strategy in one cache, I see that it uses too many resources to expire entries.
As a result, I have adopted a method of simply destroying the cache and erasing all entries in that time window. Therefore, creating and destroying multiple Cache seems inevitable. :( I first noticed that the oldest node acts as a coordinator. Thank you for your valuable information. :) -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
