Hi ,
Yukon shared us a data flow map with a question. 
I have tried all my power reading the map without getting a specfic answer. 
Does anyone have idea with making it a new interesting incubator version! 
Really appreciate your "bit Data" source for helping on feeding it up!
Sorry for any rude actions/impolite words bothered you. 
Many thanks in advance! 


Sincerely
Regards


------------------ ???????? ------------------
??????: "xuzhenzhenyf"<[email protected]>;
????????: 2018??2??10??(??????) ????1:09
??????: "users"<[email protected]>;

????: Re: RocketMQ 3.5.8????????


Hi guys,

I met a flow control problem. Here is config:
Version: rocketmq 3.5.8
Broker: 3m-3s-async
flushDiskType:ASYNC_FLUSH
Jvm:-Xms 4g -Xmx 4g -xmn 2g -XX:PermSize=128m -XX:MaxPermSize=320m 
-XX:ParallelGCThreads=2 -XX:ConcGCThreads=1
Env: Docker, no cpu limit, 16G memory,(The host has 40 cpus and deploys about 
20-30 docker instances??not mq), all instances is no cpu limit)
sendMessageThreadPoolNums=28
pullMessageThreadPoolNums=22

When the tps is only 100-200, some master start flow control.Most of logs in 
producer is like this:
[TIMEOUT_CLEAN_QUEUE]broker busy, start flow control for a while, period in 
queue: 201ms, size of queue: 35
Some logs is:
[REJECTREQUEST]system busy, start flow control for a while
[PCBUSY_CLEAN_QUEUE]broker busy, start flow control for a while, period in 
queue: 3ms, size of queue: 66

There are warning logs in master sometimes, like:
[NOTIFYME]putMessage in lock cost time(ms)=1557, bodyLength=108 
AppendMessageResult=AppendMessageResult{status=PUT_OK,...pagecacheRT=1557}
putMessage not in lock eclipse time(ms)=1557, bodyLength=110
Sometimes pagecacheRT=0.

Sometimes only has "not in lock time?? log:
putMessage not in lock eclipse time(ms)=1440, bodyLength=108

The flow control happens in one broker mostly??and  the others is fine.
The gc time is about 100ms??it mostly doesn??t happen is gc period

In another cluster, 1m-1s-async with mq config, its tsp can reach 10000 until 
happening flow control

Does anyone have idea about this problem??where is bottleneck 
probably??memory??disk, or cpu?

Just in English

On 2018/02/09 05:56:29, "752832634" <[email protected]> wrote: 
> Hi guys> 
> 
> 
> 
>We met a trouble, is there any help on this!

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