Question

I have a huge database , which has some 300 collections , I have to enable sharding for each collections , Is there a command to enable sharding on all collections from mongos ,

lets say my db name is abc

I enabled sharding for db like this

db.runCommand({"enablesharding" : "abc"})

later I need to use

db.runCommand( { shardcollection : "collection name", key : { _id : 1 } } )

foreach collection ,

so Please suggest and easy way of doing it

Thanks in advance for responding to this post

Answer 1

You can get all collection names programmatically.

db.getCollectionNames().forEach(function(coll_name) {
  db.runCommand( { shardcollection : coll_name, key : { _id : 1 } } )
})