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Type: Bug
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Resolution: Unresolved
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Priority: Critical - P2
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None
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Affects Version/s: None
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Component/s: MapReduce
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Query Execution
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ALL
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(copied to CRM)
During map-reduce operation there are unnecessary global lock used and should be removed.
- is duplicated by
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SERVER-30111 Mapreduce uses global lock when outputting to empty collection
- Closed
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SERVER-6892 Convert GlobalWrite to db lock in mr.cpp
- Closed
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SERVER-13449 Possible to prevent global lock during map reduce?
- Closed
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SERVER-13442 mapReduce nonAtomic output option
- Closed
- is related to
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SERVER-13748 Global Lock in Reduce Phase of Map/Reduce
- Closed
- related to
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SERVER-7831 m/r: reduce post processing: reduce lock time with "nonAtomic" option
- Backlog
- links to
(1 related to, 3 links to)