TrackedUnshardedCollectionHasMultipleChunks

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Description

Format
Example

Description

TrackedUnshardedCollectionHasMultipleChunks: An unsharded collection contains multiple chunks.
New in version 8.0.

Format

{
   type: "TrackedUnshardedCollectionHasMultipleChunks",
   description: "<string>",
   details: {
      namespace: "<string>",
      uuid: UUID("<uuid>"),
      numChunks: <integer>
   }
}

TrackedUnshardedCollectionHasMultipleChunks inconsistency documents contain these fields:

Field	Type	Description
`type`	string	Type of inconsistency document. Returns a value of `TrackedUnshardedCollectionHasMultipleChunks` for this inconsistency type.
`description`	string	Describes the inconsistency found in the metadata.
`details`	document	Document with additional information on where the inconsistency exists in the database and sharded cluster.
`details.namespace`	string	Indicates the database and collection where the inconsistency exists.
`details.uuid`	UUID	UUID of the tracked collection.
`details.numChunks`	integer	Number of chunks on the unsharded collection.

Example

Use the db.adminCommand() method to call the checkMetadataConsistency command:

db.adminCommand( { checkMetadataConsistency: 1 } )

The method returns a cursor with a batch of documents showing the inconsistencies found in the sharding metadata. The example below shows a cursor with a TrackedUnshardedCollectionHasMultipleChunks inconsistency document:

{
   cursor: {
      id: Long("0"),
      ns: "test.$cmd.aggregate",
      firstBatch: [
         {
            type: "TrackedUnshardedCollectionHasMultipleChunks",
            description: "Found tracked unsharded collection with more than one chunks",
            details: {
               namespace: "test.authors",
               uuid: UUID("0a5ed8eb-d769-456a-8c8b-c67ee99cfd8a"),
               numChunks: 2
            }
         }
      ],
   },
   ok: 1
}

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TrackedUnshardedCollectionHasInvalidKey

ZonesRangeOverlap