Inconsistency Types
New in version 7.0.
The checkMetadataConsistency
command performs a series of consistency
checks on sharding metadata and indexes and returns an array of inconsistency
documents.
Inconsistency Type | Description |
---|---|
A collection contains mismatching options across different shards. New in version 8.0. | |
A collection exists on a shard with a locally registered UUID that differs from
the one registered in the New in version 7.0. | |
The routing table contains a chunk with a min key or max key that doesn't correspond to the collection shard key. New in version 7.0. | |
The routing table contains a zone with a min key or max key that doesn't correspond to the collection shard key. New in version 7.0. | |
A collection is registered in the New in version 7.0. | |
An index exists on two different shards that contains differing metadata or a specific index is missing on some shards. New in version 7.0. | |
Indicates that an unsharded collection exists on the incorrect shard
and was not moved with New in version 7.0. Changed in version 8.0. | |
A collection is registered on the sharding catalog but does not exist on the corresponding shard. New in version 8.0. | |
A sharded collection exists without a routing table. New in version 7.0. | |
A sharded collection exists that doesn't have an index compatible with the collection shard key. New in version 7.0. | |
A range gap exists in the routing table. The last chunk boundary in the routing table does not reach the maximum key value. New in version 7.0. | |
A range gap exists in the routing table. The first chunk does not start from the minimum key value. New in version 7.0. | |
A range gap exists in the routing table between two consecutive chunks for the same collection. New in version 7.0. | |
The routing table of a collection contains two chunks with overlapping shard key ranges. New in version 7.0. | |
A shard is missing routing information for a collection. New in version 8.0. | |
A shard thinks a sharded collection is unsharded. New in version 7.0. | |
An unsharded collection has an invalid shard key. New in version 8.0. | |
An unsharded collection contains multiple chunks. New in version 8.0. | |
Overlapping zones exist for the same collection. New in version 7.0. |