Hi Denis, Thank you for the explanation, so the cause is about Ignite use both of on-heap and off-heap to store the entries and unfortunately I read the everything from off-heap, so question #1 is: *how could I read the on-heap entries directly?*
*My use case* is to get Top 100 entries by sorting a particular column in descending order, see below detail: Assume I have a continuous stream coming in from kafka and saving to a partition cache which is located in 4 nodes, I could use map-reduce like function to realize 'order by *** limit 100' query, however, the cache itself is really huge, there's no performance guaranteed for realtime user query. so, A simple and on-going solution is expected. Question #2: *I wonder if SortedEvictionPolicy could be the best practise, will this work?* Thanks again. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
