Release 3.22.01.6

Release Notes:

We have released a bug-fixed version 3.22.01.6.

Bug-fixes:

• After the master-slave switch, the 8066 side starts a transaction and rolls it back, some data may not be rolled back.
• Enable sql statistics, concurrent threads do not grab the lock and fall into an infinite loop, causing the cpu usage to be too high
• The expansion and contraction thread connection-pool-evictor-thread of the connection pool exits unexpectedly
• Too many slow logs blocked, resulting in heartbeat failure and connection creation failure
• Slow log bug causes queue consumption thread to exit abnormally
• Strengthen sequence configuration change scenario optimization
• Lost connection appears when issuing multiple statements...

发行说明：

我们发布了3.22.01.6,这是个bug修复版本

问题修复:

• 主从切换后，业务端开启事务并进行回滚时，可能存在部分数据没有被回滚的现象
• 开启sql统计，并发线程没有抢到锁陷入死循环引起cpu使用率过高
• 连接池的扩缩容线程connection-pool-evictor-thread意外退出
• 慢日志过多阻塞，导致心跳失败、创建连接失败
• 慢日志bug导致队列消费线程异常退出
• 多语句下发出现lost connnection...
• 加强sequence配置改动场景优化