Zipkin start 和 redis start 不兼容

Spring boot 版本: <code>2.2.1.RELEASE</code>

Spring cloud 版本 : <code>Hoxton.RC1</code>

项目中同时使用了

spring-cloud-starter-zipkin

spring-boot-starter-data-redis

在编码中有多个Service同时注入了RedisTemplate&lt;String, String&gt; redisTemplate导致在Tomcat启动时报错，导致无法运行。

错误如下

[ main] o.a.c.loader.WebappClassLoaderBase : The web application

[ROOT] appears to have started a thread named [lettuce-eventExecutorLoop-1-1] but has failed to stop it. This is very likely to create a memory leak.

Stack trace of thread:

sun.misc.Unsafe.park(Native Method)`

…

Caused by: org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisException: Cannot retrieve initial cluster partitions from initial URIs [RedisURI [host=‘172.31.214.234’, port=6380], RedisURI [host=‘172.31.214.234’, port=6381], RedisURI [host=‘172.31.214.235’, port=6380], RedisURI [host=‘172.31.214.235’, port=6381], RedisURI [host=‘172.31.214.236’, port=6380], RedisURI [host=‘172.31.214.236’, port=6381]

最终原因是Redis 客户端lettuce无法连接上Redis导致该报错。

解决

移除spring-boot-starter-data-redis中对lettuce的引用，加入jedis的依赖 。springcloud框架www.1b23.com

当我移除spring-cloud-starter-zipkin 之后再次启动项目发现启动成功，spring-boot-starter-data-redis默认使用lettuce作为Redis的客户端，因此推断为spring-cloud-starter-zipkin 可能和lettuce有兼容性问题。

因此尝试把lettuce换为jedis，问题解决。