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'''Category:''' Throughput & Scaling

'''Summary:''' CLI: reallocates RU/s unevenly across physical partitions to relieve a hot partition.

== Overview ==
The Azure CLI command 'az cosmosdb sql container redistribute-partition-throughput' lets you manually redistribute a container's provisioned RU/s unevenly across its physical partitions — allocating more throughput to specific physical partitions and less to others — which is useful when you've identified a known hot physical partition (e.g., via PartitionKeyRUConsumption) and want to temporarily relieve its throttling without increasing the container's total provisioned throughput.

== More Info & Links ==
* [https://learn.microsoft.com/en-us/azure/cosmos-db/nosql/how-to-redistribute-throughput Microsoft Learn: Redistribute throughput across partitions]

== DP-420 Style Practice Questions ==
'''Q1.''' What does 'az cosmosdb sql container redistribute-partition-throughput' allow you to do?
* A. Manually allocate more RU/s to specific physical partitions and less to others, without changing total throughput
* B. Increase the container's total provisioned RU/s
* C. Change the container's partition key definition
* D. Switch the container between manual and autoscale throughput

'''Q2.''' Which diagnostic log table would typically help you identify which physical partition needs more redistributed throughput?
* A. PartitionKeyRUConsumption
* B. ControlPlaneRequests
* C. QueryRuntimeStatistics
* D. DataPlaneRequests

== Answer Key ==
''Answers are listed at the very end so you can attempt the questions first.''

* '''Q1 (az cosmosdb sql container redistribute-partition-throughput):''' A. Manually allocate more RU/s to specific physical partitions and less to others, without changing total throughput — This command redistributes existing RU/s unevenly across physical partitions rather than adding new total throughput.
* '''Q2 (az cosmosdb sql container redistribute-partition-throughput):''' A. PartitionKeyRUConsumption — PartitionKeyRUConsumption reports per-second RU consumption per partition key, helping identify hot partitions that could benefit from redistributed throughput.

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''DP-420: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB — term detail page''

[[Category:DP-420 Terminology]]
[[Category:Throughput & Scaling]]