Deadlock in High-Concurrency Scenario: Missing Index on Lookup Column
A stored procedure designed to generate sequential identifiers encountered deadlocks under concurrent load.
CREATE PROCEDURE [dbo].[GetNextSequence]
@sequenceKey varchar(50),
@result int OUTPUT
AS
BEGIN
BEGIN TRY
BEGIN TRANSACTION
SELECT @result = CurrentVal
FROM sequence_table WITH (XLOCK, ROWLOCK) ...
Posted on Thu, 06 Aug 2026 16:29:09 +0000 by Kyrst
Rate Limiting and Service Degradation: Essential Techniques for High-Traffic Systems
Rate Limiting Fundamentals
Rate limiting serves as a critical safeguard for backend services facing massive concurrent requests. The core principle involves controlling inbound traffic volume to prevent system overload. Common real-world parallels include medical appointment systems with daily quotas, parking facilities displaying "full&qu ...
Posted on Thu, 16 Jul 2026 16:57:31 +0000 by Goose