nikusu417

[Bug] jvm issue

3

### Search before asking - [x] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar issues. ### What happened 我们用mysql替代zk作为注册中心。替换后有6台master，其中一台master的jvm超过，基本每秒都会发生GC，同时在不停的创建新对象。排查下来后发现 如图的AbandonedConnectionCleanupThread持有的map过多 ### What you expected to happen 希望知道为什么会发生这种情况 ###...