Choosing Between RestTemplate and WebClient in Spring Applications
Guide to choosing Spring's RestTemplate or WebClient based on blocking vs reactive needs, with a comparison table, code examples, and validation steps.
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springSpring Cloud LoadBalancer DNS service discovery lacks a supported TTL refresh default
In current Spring Boot and Spring Cloud releases, Spring Cloud LoadBalancer can resolve service instances through DNS, but the framework does not define its own DNS cache TTL or negative caching policy. Instead, resolution is delegated to the JVM’s InetAddress implementation, meaning cache lifetime and refresh behavior are governed by the networkaddress.cach
WebClient DNS caching behavior and TTL inconsistency
Spring WebClient delegates network operations to the underlying Reactor Netty HttpClient. While the JVM provides global DNS caching controls via system properties, different HTTP client implementations may handle DNS Time-To-Live (TTL) and record expiration independently of the standard JVM settings. When deploying in dynamic environments where service IP ad