Another challenge was to incorporate the above changes for the existing data i.e. increasing the number of shards and defining a custom routing key for each of the document. The existing index had close to 33 MN documents at the time of the change
Given that the routing key and the number of shards needed to changes, a
Product Lock-in : Related, but different is being locked into a product. When migrating from one vendor's product to another vendor's, you are usually changing both vendor and product, so the two are easily conflated. Open source products may avoid the vendor lock-in, but they don't remove product lock-in: if you are using Kubernetes or Cassandra,