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Type: Bug
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Resolution: Fixed
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Priority: Major - P3
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Affects Version/s: 4.2.22, 4.4.18, 5.0.14, 6.0.3, 6.1.0-rc4
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Component/s: None
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Fully Compatible
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ALL
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v6.1, v6.0
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Sharding EMEA 2022-10-17
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(copied to CRM)
When multiple contiguous chunks are being merged, the commit on the config server is performed via a transaction that - currently - contains a delete statement for each single chunk involved in the operation.
In case plenty of chunks are merged, it may happen to append too many delete statements leading to the creation a large BSON object exceeding the maximum allowed size of 16MB.
When that happens, the merge fails.