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The mergeChunks command requires at least _______ empty input chunk.

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The mergeChunks command requires at least _______ empty input chunk.

(a) one

(b) two

(c) three

(d) all of the mentioned

This question was addressed to me in homework.

Enquiry is from Sharded Cluster Maintenance topic in portion Sharding Concepts, Mechanics and Sharded Cluster of MongoDB

1 Answer

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Best answer
Correct option is (a) one

The best I can explain: MergeChunks merge two contiguous chunks on the same shard, where at least one of the contains no data.

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