ren ran

> It could be useful to use a real profiler sync as https://github.com/async-profiler/async-profiler to pinpoint the problem.  `EventLoopGroup` is always running, and `NIOEventLoopGroup` use less CPU (about 9%) than...

> @stillerrr When the client is idle, batchFlushTasks aren't scheduled in the Pulsar client code. The current problem description where it says "when client idle" doesn't make sense to my....

the root cause for this is that when pipeline do not refresh slot cache when getting JedisMovedDataException I submit a pr for this: #3699