org.springframework.data.redis.RedisSystemException: Redis exception; nested exception is io.lettuce.core.RedisException: java.io.IOException: Connection reset by peer
    at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:74)
    at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41)
    at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44)
    at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42)
    at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:275)
    at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.convertLettuceAccessException(LettuceStringCommands.java:799)
    at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.get(LettuceStringCommands.java:68)
    at org.springframework.data.redis.connection.DefaultedRedisConnection.get(DefaultedRedisConnection.java:266)
    at org.springframework.data.redis.cache.DefaultRedisCacheWriter.lambda$get$1(DefaultRedisCacheWriter.java:110)
    at org.springframework.data.redis.cache.DefaultRedisCacheWriter.execute(DefaultRedisCacheWriter.java:248)
    at org.springframework.data.redis.cache.DefaultRedisCacheWriter.get(DefaultRedisCacheWriter.java:110)
    at org.springframework.data.redis.cache.RedisCache.lookup(RedisCache.java:88)
    at org.springframework.cache.support.AbstractValueAdaptingCache.get(AbstractValueAdaptingCache.java:58)
    at org.springframework.cache.interceptor.AbstractCacheInvoker.doGet(AbstractCacheInvoker.java:73)
    at org.springframework.cache.interceptor.CacheAspectSupport.findInCaches(CacheAspectSupport.java:571)
    at org.springframework.cache.interceptor.CacheAspectSupport.findCachedItem(CacheAspectSupport.java:536)
    at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:402)
    at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:346)
    at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)
    at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)

參考資料如下：

RedisException: java.io.IOException: Connection reset by peer

記一次RedisLettuce連接池ConnectionResetByPeer排查經(jīng)歷