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I can't delete a collection it's telling me false every single time..
I do a getCollections() it gives me a lot of tmp.mr.mapreduce_1299189206_1618_inc (the ones I want to drop) I thought they were deleted during disconnection, but they're not (in my case).
Then when I do: db["tmp.mr.mapreduce_1299188705_5595"].drop() I always get false and it's not deleted.
The logs are not really helpful:
Wed Mar 9 11:05:51 [conn4] CMD: drop customers.tmp.mr.mapreduce_1299188705_5595
Now I maxed up my namespaces and I cannot create more collections help?
BTW, I can go down, this is not production (or even in production I can put it down too).
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In MongoDB, db. collection. drop() method is used to drop a collection from a database. It completely removes a collection from the database and does not leave any indexes associated with the dropped collections.
Delete Collection You can delete a table, or collection as it is called in MongoDB, by using the drop() method.
To delete all documents from a collection, pass an empty filter document {} to the db. collection. deleteMany() method.
Now I maxed up my namespaces and I cannot create more collections help?
By default MongoDB has 20k namespaces, so that's a lot of dead M/R collections. According to the logs, the DB is getting the request to drop the collection. So the question now is whether or not MongoDB has gotten into a bad state.
Can you take it down and re-start to ensure that all connections are closed?
Is it a lot of data? Can you take it down and run --repair?
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