Diagnosing Azure Cosmos DB Change Feed Processor Lag
Find out why your Cosmos DB Change Feed processor is falling behind and apply targeted fixes based on measured causes.
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cosmosdbCan a custom indexing policy reduce request-unit costs while preserving range-query performance in Cosmos DB?
Automatic indexing in Azure Cosmos DB for NoSQL indexes every property on write, simplifying schema evolution but consuming request units per operation. When a custom indexing policy excludes specific paths, the default composite index interaction with remaining fields becomes a design consideration, particularly for range and equality queries. The policy ch
Azure Cosmos DB: Latency spikes during concurrent request bursts
Throughput Throttling and Latency Azure Cosmos DB manages resource consumption via Request Units (RUs). When concurrent requests exceed the provisioned RU/s limit, the system returns HTTP 429 (Too Many Requests) responses to protect the database from overloading. While these responses are expected, the interaction between high concurrency and SDK-level retry