Hi, I have a topic which has four partitions and data is distributed among those based on a specified key.
If I want to increase the number of partitions to six how can I do the same and also making sure that messages for a given key always go to one (specific) partition only. Will the existing message redistribute themselves among new partition. Also say earlier message of key A went to partition 1 and going forward any new message go to same partition where earlier messages for that key are? And by increasing partitions some keys may use a different partition now, so how do I ensure the case of all messages of that key belong to single partition. Thanks Sachin