Spring-Retry | 易学教程

Retry not working when Spring Batch managed transaction rolls back

阅读更多关于 Retry not working when Spring Batch managed transaction rolls back

问题 In one of the steps of my Spring Batch job, I'm trying to configure it so that when ObjectOptimisticLockingFailureException happens, the step can be retried and hopefully the retry will work. @Bean public Step myStep(StaxEventItemReader<Response> staxEventResponseReader, ItemWriter<Response> itemWriter, ItemProcessor<? super Response, ? extends Response> responseProcessor) { return stepBuilderFactory.get("myStep") .<Response, Response>chunk(1) .reader(staxEventResponseReader) .processor

Spring Retry Circuit breaker opening for all exceptions

阅读更多关于 Spring Retry Circuit breaker opening for all exceptions

问题 I was trying to use Spring Retry Circuit Breaker. My requirement is to open the Circuit only for repetitive exceptions of a specific type. And for all other exceptions, I would like to pass the exception back to the caller without opening the circuit. What I am observing is that the Circuit is opening for all types of Exceptions, not just the specific exception. Wondering if this is how it is designed to work? My requirement: When I call a remote service, I would like to open the service only

如何使用Spring RetryTemplate

阅读更多关于如何使用Spring RetryTemplate

在云计算场景中，网络是其中的一个重要部分。实际情况下的网络环境没有开发环境的网络那么稳定，所以在云计算中，网络是不可靠的已经成为了一条默认的潜规则。在系统研发的过程中，满足正常的业务需求的必要前提下，系统的鲁棒性，容错性也成为了一个重要的技术需求。在网络不可靠的环境中，要保证业务流程，就需要在网络异常时对流程异常环节进行重试处理。 Spring框架为我们提供了重试机制，接下来我们来试验下Spring的重试。 Maven Dependency 假设项目是Maven管理的，需要在家pom中增加spring-retry包的依赖。 < dependency > < groupId > org.springframework.retry </ groupId > < artifactId > spring-retry </ artifactId > </ dependency > 创建Spring Retry Template 创建一个Bean配置类来管理bean，使用@EnableRetry来启用Spring重试，通过@Bean注解创建一个RetryTemplate加入Spring Container。配置最大重试次数为4。 @Configuration @EnableRetry public class BeanSeederServices { @Bean public

Spring retry find the last retry

阅读更多关于 Spring retry find the last retry

问题 I am using Spring-retry-1.2.0, Retry is working fine, but in my method i want to find it out whether the retrial is the last retrial or not, Is there any method available to get the retrialCount or last retrial in spring-retry? Retrial.java public class Offers extends SimpleRetryPolicy { @Async @Retryable(maxAttemptsExpression = "#{retrial.times}", backoff = @Backoff(delayExpression = "#{retrial.delay}")) public void handleOfferes(Data data) { AlwaysRetryPolicy policy = new AlwaysRetryPolicy(

Spring retry find the last retry

阅读更多关于 Spring retry find the last retry

Spring retry find the last retry

阅读更多关于 Spring retry find the last retry

spring-retry学习

阅读更多关于 spring-retry学习

spring-retry Spring Retry 为 Spring 应用程序提供了声明性重试支持。它用于Spring批处理、Spring集成、Apache Hadoop(等等)的Spring。在分布式系统中，为了保证数据分布式事务的强一致性，大家在调用RPC接口或者发送MQ时，针对可能会出现网络抖动请求超时情况采取一下重试操作。大家用的最多的重试方式就是MQ了，但是如果你的项目中没有引入MQ，那就不方便了。还有一种方式，是开发者自己编写重试机制，但是大多不够优雅。注解式使用 RemoteService.java 重试条件：遇到 RuntimeException 重试次数：3 重试策略：重试的时候等待 5S, 后面时间依次变为原来的 2 倍数。熔断机制：全部重试失败，则调用 recover() 方法。 @Service public class RemoteService { private static final Logger LOGGER = LoggerFactory.getLogger(RemoteService.class); /** * 调用方法 */ @Retryable(value = RuntimeException.class, maxAttempts = 3, backoff = @Backoff(delay = 5000L,