Details
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Bug
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Resolution: Won't Fix
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Minor - P4
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None
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2.8.0-rc5
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None
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Sharding
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ALL
Description
If the current total dataSize in the collection within a shard is smaller than given maxChunkSize, splitVector will return early:
https://github.com/mongodb/mongo/blob/r2.8.0-rc5/src/mongo/s/d_split.cpp#L357
Whereas, if there are sufficient amount of bytes in the collection, it can return with a split point as long as the average size in the chunk range is more than maxChunkSize / 2
Attachments
Issue Links
- related to
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SERVER-16715 Distribution of data with hashed shard key suddenly biased toward few shards
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- Closed
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