'How to do a cleanup in sharded cluster on MongoDb?

I want to do bulk deletion operation on the Sharded Cluster of Mongo data base, should I use TTL index or proceed with normal bulk deletion method ? please help me with the steps and procedure to -

  1. Delete documents
  2. merge empty chunks
  3. delete empty indexes
  4. free up the space on sharded cluster
mongodbmongodb-queryshardingmongo-shellmongo-collection


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