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Type: Improvement
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Resolution: Done
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Priority: Major - P3
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None
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Affects Version/s: 2.6.6
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Component/s: MapReduce
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Labels:
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Query Execution
The mapper may generate lots of items and each item is kept in-memory at this state. It would be crashed when run out of memory.
NOTE: Skip the checking when using v8 engine (_jsMode: true). The best way is checking at emit function and transfers in memory storage to temp collection. Current state is checking at each document handled because the framework flow designed.
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