Hi You can gather your data by @AffinityKeyMapped in one partition, but you can not force partition to be stored on some particular node. So you can use the same @AffinityKeyMapped for all data related to a particular city and this means all data about this city and/or related to this city would be on one particular node. However, this means that data related to London and Zurich might get to the same partition. Anyway if you list of cities >1000 distribution would be fiar enough. In the case of a small set of cities, you can try to implement your own affinity function, but this isn't an easy task and can take significant time.
Thanks, Mike. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
