MissingLocalCollection

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Description

Format
Example

Description

MissingLocalCollection: A collection is registered on the sharding catalog but does not exist on the corresponding shard.
New in version 8.0.

Format

{
   type: "MissingLocalCollection",
   description: "<string>",
   details: {
      namespace: "<string>",
      uuid: UUID("<uuid>"),
      shard: "<string>"
   }
}

MissingLocalCollection inconsistency documents contain these fields:

Field	Type	Description
`type`	string	Type of inconsistency document. Returns a value of `MissingLocalCollection` 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 collection registered on the sharding catalog.
`details.shard`	string	The shard where the inconsistency exists.

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 MissingLocalCollection inconsistency document:

{
   cursor: {
      id: Long("0"),
      ns: "test.$cmd.aggregate",
      firstBatch: [
         {
            type: "MissingLocalCollection",
            description: "Collection registered on the sharding catalog not found on the given shards",
            details: {
               namespace: "test.authors",
               uuid: UUID("1ad56770-61e2-48e9-83c6-8ecefe73cfc4"),
               shard: "shard02"
            }
         }
      ],
   },
   ok: 1
}

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MisplacedCollection

MissingRoutingTable