DocumentCollection.PartitionKeyRangeStatistics Property

Reference

Definition

Namespace:: Microsoft.Azure.Documents

Assemblies:: Microsoft.Azure.DocumentDB.Core.dll, Microsoft.Azure.Documents.Client.dll

Packages:: Microsoft.Azure.DocumentDB v2.18.0, Microsoft.Azure.DocumentDB.Core v2.18.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets a collection of PartitionKeyRangeStatistics object in the Azure Cosmos DB service.

[Newtonsoft.Json.JsonIgnore]
public System.Collections.Generic.IReadOnlyList<Microsoft.Azure.Documents.PartitionKeyRangeStatistics> PartitionKeyRangeStatistics { get; }

[<Newtonsoft.Json.JsonIgnore>]
member this.PartitionKeyRangeStatistics : System.Collections.Generic.IReadOnlyList<Microsoft.Azure.Documents.PartitionKeyRangeStatistics>

Public ReadOnly Property PartitionKeyRangeStatistics As IReadOnlyList(Of PartitionKeyRangeStatistics)

Property Value

IReadOnlyList<PartitionKeyRangeStatistics>

PartitionKeyRangeStatistics object.

Attributes: Newtonsoft.Json.JsonIgnoreAttribute

Examples

The following code shows how to log statistics for all partition key ranges as a string:

var collection = await client.ReadDocumentCollectionAsync(
    collectionUri,
    new RequestOptions { PopulatePartitionKeyRangeStatistics = true } );

Console.WriteLine(collection.PartitionKeyRangeStatistics.ToString());

To log individual partition key range statistics, use the following code:

var collection = await client.ReadDocumentCollectionAsync(
    collectionUri,
    new RequestOptions { PopulatePartitionKeyRangeStatistics = true } );

foreach(var partitionKeyRangeStatistics in collection.PartitionKeyRangeStatistics)
{
    Console.WriteLine(partitionKeyRangeStatistics.PartitionKeyRangeId);
    Console.WriteLine(partitionKeyRangeStatistics.DocumentCount);
    Console.WriteLine(partitionKeyRangeStatistics.SizeInKB);

    foreach(var partitionKeyStatistics in partitionKeyRangeStatistics.PartitionKeyStatistics)
    {
        Console.WriteLine(partitionKeyStatistics.PartitionKey);
        Console.WriteLine(partitionKeyStatistics.SizeInKB);
    }
 }

The output will look something like that: "statistics": [ {"id":"0","sizeInKB":1410184,"documentCount":42807,"partitionKeys":[]}, {"id":"1","sizeInKB":3803113,"documentCount":150530,"partitionKeys":[{"partitionKey":["4009696"],"sizeInKB":3731654}]}, {"id":"2","sizeInKB":1447855,"documentCount":59056,"partitionKeys":[{"partitionKey":["4009633"],"sizeInKB":2861210},{"partitionKey":["4004207"],"sizeInKB":2293163}]}, {"id":"3","sizeInKB":1026254,"documentCount":44241,"partitionKeys":[]}, {"id":"4","sizeInKB":3250973,"documentCount":124959,"partitionKeys":[]} ]

Remarks

This is reported based on a sub-sampling of partition keys within the collection and hence these are approximate. If your partition keys are below 1GB of storage, they may not show up in the reported statistics.

Applies to

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