Question

我在springboot应用程序中使用Redis。当redis服务器关闭时，它将阻塞很多时间并抛出PoolException。我该如何减少封锁时间？谢谢！

我尝试将属性超时和 maxWait 设置为100ms，但是没有用。

服务：

@Service
public class TestService {

    @Cacheable(cacheNames = "test:hello")
    public String test(String name) {
        System.out.println("invoke...");
        return "hello " + name;
    }

}

控制器：

@RestController
public class TestController {

    @Autowired
    private TestService testService;

    @GetMapping("/test")
    public Object test(@RequestParam String name) {
        return testService.test(name);
    }

}

配置：

@Configuration
public class RedisConfiguration extends CachingConfigurerSupport {

    public static final Logger LOG = LoggerFactory.getLogger(RedisConfiguration.class);

    @Bean
    public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        RedisCacheManager redisCacheManager = RedisCacheManager.RedisCacheManagerBuilder
                .fromConnectionFactory(redisConnectionFactory).build();
        return redisCacheManager;
    }

    @Override
    public CacheErrorHandler errorHandler() {
        return new CacheErrorHandler() {
            @Override
            public void handleCacheGetError(RuntimeException exception, Cache cache, Object key) {
                if (exception instanceof PoolException) {
                    LOG.error(exception.getMessage());
                } else {
                    throw exception;
                }
            }

            @Override
            public void handleCachePutError(RuntimeException exception, Cache cache, Object key, Object value) {
                if (exception instanceof PoolException) {
                    LOG.error(exception.getMessage());
                } else {
                    throw exception;
                }
            }

            @Override
            public void handleCacheEvictError(RuntimeException exception, Cache cache, Object key) {
                if (exception instanceof PoolException) {
                    LOG.error(exception.getMessage());
                } else {
                    throw exception;
                }
            }

            @Override
            public void handleCacheClearError(RuntimeException exception, Cache cache) {
                if (exception instanceof PoolException) {
                    LOG.error(exception.getMessage());
                } else {
                    throw exception;
                }
            }
        };
    }
}

application.properties：

spring.application.name = test

spring.redis.host = 127.0.0.1 | 127.0.0.2 | 213.12.51.11
spring.redis.port = 6379
spring.redis.timeout = 100ms
spring.redis.lettuce.pool.max-active = 8
spring.redis.lettuce.pool.max-idle = 8
spring.redis.lettuce.pool.min-idle = 0
spring.redis.lettuce.pool.max-wait = 100ms

将主机设置为127.0.0.1
有效

2019-04-09 17:11:02.146  INFO 13852 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-04-09 17:11:02.146  INFO 13852 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2019-04-09 17:11:02.159  INFO 13852 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 13 ms
2019-04-09 17:11:02.351  INFO 13852 --- [nio-8080-exec-1] io.lettuce.core.EpollProvider            : Starting without optional epoll library
2019-04-09 17:11:02.353  INFO 13852 --- [nio-8080-exec-1] io.lettuce.core.KqueueProvider           : Starting without optional kqueue library
invoke...

将主机设置为127.0.0.2
1s区

2019-04-09 17:15:37.715  INFO 24528 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-04-09 17:15:37.715  INFO 24528 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2019-04-09 17:15:37.725  INFO 24528 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 10 ms
2019-04-09 17:15:37.896  INFO 24528 --- [nio-8080-exec-1] io.lettuce.core.EpollProvider            : Starting without optional epoll library
2019-04-09 17:15:37.897  INFO 24528 --- [nio-8080-exec-1] io.lettuce.core.KqueueProvider           : Starting without optional kqueue library
2019-04-09 17:15:39.170 ERROR 24528 --- [nio-8080-exec-1] n.guolanren.config.RedisConfiguration    : Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.2:6379asdasdasd
invoke...
2019-04-09 17:15:40.188 ERROR 24528 --- [nio-8080-exec-1] n.guolanren.config.RedisConfiguration    : Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.2:6379asdasdasd

将主机转到213.12.51.11
封锁10秒

2019-04-09 17:17:35.173  INFO 27304 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2019-04-09 17:17:35.174  INFO 27304 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2019-04-09 17:17:35.189  INFO 27304 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 15 ms
2019-04-09 17:17:35.484  INFO 27304 --- [nio-8080-exec-1] io.lettuce.core.EpollProvider            : Starting without optional epoll library
2019-04-09 17:17:35.497  INFO 27304 --- [nio-8080-exec-1] io.lettuce.core.KqueueProvider           : Starting without optional kqueue library
2019-04-09 17:17:45.735 ERROR 27304 --- [nio-8080-exec-1] n.guolanren.config.RedisConfiguration    : Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 213.12.51.11:6379asdasdasd
invoke...
2019-04-09 17:17:55.760 ERROR 27304 --- [nio-8080-exec-1] n.guolanren.config.RedisConfiguration    : Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 213.12.51.11:6379asdasdasd

Spring cache（reids）maxWait无效

0 个答案: