CorruptedChunkShardKey

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Description

Format
Example

Description

CorruptedChunkShardKey: 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.

Format

{
   type: "CorruptedChunkShardKey",
   description: "<string>",
   details: {
      namespace: "<string>",
      collectionUUID: UUID("<uuid>"),
      chunk: <chunk>,
      shardKeyPattern: <pattern>
   }
}

CorruptedChunkShardKey inconsistency documents contain the following fields:

Field	Type	Description
`type`	string	Type of inconsistency document. Returns a value of `CorruptedChunkShardKey` 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.collectionUUID`	UUID	UUID of the collection with the corrupted chunk shard key.
`details.chunk`	document	Chunk with the corrupted shard key.
`details.shardKeyPattern`	document	Collection shard key pattern.

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 CorruptedChunkShardKey inconsistency document:

{
   cursor: {
      id: Long("0"),
      ns: "test.$cmd.aggregate",
      firstBatch: [
         {
            type: "CorruptedChunkShardKey",
            description: "Found chunk with a shard key pattern violation",
            details: {
               namespace: "test.authors",
               collectionUUID : new UUID("1ad56770-61e2-48e9-83c6-8ecefe73cfc4"),
               chunk: {
                  _id: ObjectId("64ddd81656be208c6685da1b"),
                  uuid: new UUID("de934e0a-74d2-412b-9bb8-409abe9754e3"),
                  min: {
                     y: 0
                  },
                  max: {
                     x: MaxKey
                  },
                  shard: "shard0000",
                  lastmod: Timestamp(1, 0),
                  onCurrentShardSince: Timestamp(1, 0),
                  history: [
                     {
                        validAfter: Timestamp(1, 0),
                        shard: "shard0000"
                     }
                  ]
               },
               shardKeyPattern: {
                  x: 1
               }
            }
         }
      ],
   },
   ok: 1
}

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CollectionUUIDMismatch

CorruptedZoneShardKey