spring-boot - 连接redis和lettuce客户端时出现内存泄漏错误

Question

我正在使用 lettuce 连接到 redis:spring-boot-starter-redis :2.0.6.RELEASE，当我启动应用程序时出现此错误:

[ERROR][main][ResourceLeakDetector][error] - LEAK: 
HashedWheelTimer.release() was not called before it's garbage- 
collected. See http://netty.io/wiki/reference-counted-objects.html for 
more information.
Recent access records: 
Created at:
io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:272)
io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:216)
io.lettuce.core.resource.DefaultClientResources.<init>(DefaultClientResources.java:163)
io.lettuce.core.resource.DefaultClientResources$Builder.build(DefaultClientResources.java:461)
io.lettuce.core.resource.DefaultClientResources.create(DefaultClientResources.java:229)
io.lettuce.core.AbstractRedisClient.<init>(AbstractRedisClient.java:96)
io.lettuce.core.RedisClient.<init>(RedisClient.java:86)
io.lettuce.core.RedisClient.create(RedisClient.java:123)
org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.lambda$createClient$7(LettuceConnectionFactory.java:853)
java.util.Optional.orElseGet(Optional.java:267)
org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.createClient(LettuceConnectionFactory.java:853)
org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.afterPropertiesSet(LettuceConnectionFactory.java:232)

redis 配置文件:

  public class RedisConfig {

  @Bean
  RedisConnectionFactory lettuceConnectionFactory(RedisProperties 
   redisProperties) {
   // 
  }

  @Bean
  public RedisTemplate<String, Object> 
  redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {

  }

  private RedisStandaloneConfiguration connection(RedisProperties 
  redisProperties) {

  }
 }

配置 yaml 文件:

  spring:      
   redis:
     host: 
     lettuce:
      pool:
       max-active:  100

有人帮忙吗？

Answer 1

这种类型的错误通常发生在 RedisClient 的多个实例未共享 ClientResources 的情况下创建时。

Spring Boot 创建一个单例实例，因此任何其他实例都可能由您的代码或外部依赖项创建。没有进一步的上下文，就不可能说更多。