MapReduce code calls auto_ptr::release() without explicitly freeing the release()'d pointer. This results in a very slow memory leak.
This has been fixed in v2.4.0-rc1 in commit 74e487e24e4120c55436977e0b5972ac38efbab7.
- related to
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SERVER-8456 Mongod memory leak during MapReduce in 2.2.x
- Closed