I execute the first command:
db.runCommand({"enablesharding":"yuncaitest"})Tip:
sharding already enabled for database yuncaitestindicates that the sharding cluster has been enabled for this database.
when I set a collection as a sharding cluster, run the command:
db.runCommand({"shardcollection":"yuncaitest.aa","key":{"_id":"hashed"}})Tip:
sharding not enabled for db yuncaitestthis in turn indicates that the database does not have a sharding cluster open.
what on earth is going on?
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