RoutingTableRangeGap
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Description
Format
{ type: "RoutingTableRangeGap", description: "<string>", details: { namespace: "<string>", collectionUUID: <string>, chunkA: {<document>}, chunkB: {<document>} } }
RoutingTableRangeGap
inconsistency documents contain the following fields:
Field | Type | Description |
---|---|---|
type | string | Type of inconsistency document. Returns a value of |
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. |
details.chunkA | document | The first chunk that has a gap with the second chunk. |
details.chunkB | document | The second chunk that has a gap with the first chunk. |
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 RoutingTableRangeGap
inconsistency document:
{ cursor: { id: Long("0"), ns: "test.$cmd.aggregate", firstBatch: [ { type: "RoutingTableRangeGap", description: "Found a gap between two consecutive chunks", details: { namespace: "test.authors", collectionUUID: new UUID("62ebdb7e-a7bb-4151-a620-49d44cef097f"), chunkA: { _id: ObjectId("64dde749ac6045c92ef3b9ad"), uuid: new UUID("8c83ea89-ab6b-4ae4-91ab-813cf781284d"), min: { x: MinKey }, max: { x: 0 }, shard: "shard0000", lastmod: Timestamp(1, 0), onCurrentShardSince: Timestamp(1, 0), history: [ { validAfter: Timestamp(1, 0), shard: "shard0000" } ] }, chunkB: { _id: ObjectId("64dde749ac6045c92ef3b9af"), uuid: new UUID("8c83ea89-ab6b-4ae4-91ab-813cf781284d"), min: { x: 10 }, max: { x: MaxKey }, shard: "shard0000", lastmod: Timestamp(1, 0), onCurrentShardSince: Timestamp(1, 0), history: [ { validAfter: Timestamp(1, 0), shard: "shard0000" } ] } } } ], }, ok: 1 }