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MongoDB how to kill / end map_reduce?

I'm not sure if this is possible, but I wanted to know if we have a solution to this problem. I was given the map_reduce task (they took an additional measure to make an incremental request so that the data set was minimal) if for a long time I want to kill the task either using the pymongo API or in the mongoDB shell ...... and also elegantly deletes all temporary tables. It can be done?

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As for killing the operation, then you need currentOp() find the identifier op, and then the killOp() command to kill the operation in the shell. See here for more details:

http://www.mongodb.org/display/DOCS/Viewing+and+Terminating+Current+Operation#ViewingandTerminatingCurrentOperation-KillinganInProgressOperation

Once the operation is killed, you can safely remove temporary collections, it is just a matter of calling drop() on the collision list. I could build some javascript to do this automatically in the shell, but given the likelihood of an error and dumping the wrong collections, this might be a bad idea.

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