Hi, Thanks for kind of reply.
But, I test each query option. setLocal - In my opinion, it seemed that all the nodes were performing on the query. What I wanted to do was that the node responsible for the affinityRun key query only the data. However, as described above, it seemed to load all nodes. setCollocated - This part seems to mean that the node requested by affinityRun becomes the Reducer Node and that the query is specified to have Group By on each node when generating the Map query. In other words, if you do not use this option, it is understood that the requesting node will ask all nodes for a row, and if they receive all of them, it will perform a Group By query on their own. Is this part right? setDistributedJoins - I have not tested this part. We are not using Join. I understood what you explained. Thank you for your kind explanation. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
