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FAQ

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Luke Lovett edited this page Feb 19, 2015 · 9 revisions

Frequently Asked questions:

What types of shard keys are supported by the ShardChunkMongoSplitter?

The ShardChunkMongoSplitter does not support a hashed _id index, since MongoDB will instead use the unhashed _id index to create the splits, resulting in all data on one split. All other index types are supported, including hashed indexes on fields that are not _id.

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