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Type: Task
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Resolution: Done
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Priority: Minor - P4
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Affects Version/s: None
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Component/s: manual
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Labels:None
http://docs.mongodb.org/manual/core/read-preference/#tag-sets
Custom read preferences and write concerns evaluate tags sets in different ways: read preferences consider the value of a tag when selecting a member to read from. while write concerns ignore the value of a tag to when selecting a member except to consider whether or not the value is unique.
I think the language needs to be improved but I'm not sure how to best outline it.
The list below that quote also needs to include
- :readmode:`primary`