RoutingTableMissingMinKey

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Description

Format
Example

Description

RoutingTableMissingMinKey: A range gap exists in the routing table. The first chunk does not start from the minimum key value.
New in version 7.0.

Format

{
   type: "RoutingTableMissingMinKey",
   description: "<string>",
   details: {
      namespace: "<string>",
      collectionUUID: <string>,
      minKeyObj: { <document> },
      globalMin: { <document> }
   }
}

RoutingTableMissingMinKey inconsistency documents contain the following fields:

Field	Type	Description
`type`	string	Type of inconsistency document. Returns a value of `RoutingTableMissingMinKey` 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.collectionUUID`	UUID	UUID of the collection.
`details.minKeyObj`	document	The minimum key used by the collection.
`details.globalMin`	document	The expected minimum key of the 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 RoutingTableMissingMinKey inconsistency document:

{
   cursor: {
      id: Long("0"),
      ns: "test.$cmd.aggregate",
      firstBatch: [
         {
            type: "RoutingTableMissingMinKey",
            description: "Routing table has a gap because first chunk does not start from MinKey",
            details: {
               namespace: "test.authors",
               collectionUUID: new UUID("62ebdb7e-a7bb-4151-a620-49d44cef097f"),
               minKeyObj: {
                  x: 0
               },
               globalMin: {
                  x: MinKey
               }
            }
         }
      ],
   },
   ok: 1
}

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RoutingTableMissingMaxKey

RoutingTableRangeGap