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InconsistentIndex

Description

InconsistentIndex: 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.

Format

{
   type: "InconsistentIndex",
   description: "<string>",
   details: {
      namespace: "<string>",
      info: <document>
   }
}

InconsistentIndex inconsistency documents contain the following fields:

Field	Type	Description
`type`	string	Type of inconsistency document. Returns a value of `InconsistentIndex` for this inconsistency type.
`description`	string	Describes the nature of 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.info`	document	Information on the inconsistent index.

Example

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

db.adminCommand( {
   checkMetadataConsistency: 1,
   checkIndexes: true
} )

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 InconsistentIndex inconsistency document:

{
   cursor: {
      id: Long("0"),
      ns: "test.$cmd.aggregate",
      firstBatch: [
         {
            type: "InconsistentIndex",
            description: "Found an index of a sharded collection that is inconsistent between different shards",
            details: {
               namespace: "test.authors",
               info: {
                   missingFromShards: [
                      "shard-rs1"
                   ],
                   inconsistentProperties: [ ],
                   indexName: "index1"
               }
            }
         }
      ],
   },
   ok: 1
}

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MisplacedCollection