hykych

@JiayuZzz Hi, May I ask why did you close this issue without comment? we came across this issue also.

@yiwu-arbug Thanks for the quick response. I tried the config in Tidb [doc](https://docs.pingcap.com/tidb/stable/titan-configuration) about Titan, ```rate-bytes-per-sec = 30MB```. But seems like Titan doesn't respect this config. Do I get it...

> @yiwu-arbug Thanks for the quick response. I tried the config in Tidb [doc](https://docs.pingcap.com/tidb/stable/titan-configuration) about Titan, `rate-bytes-per-sec = 30MB`. But seems like Titan doesn't respect this config. Do I get...

@yiwu-arbug True, but doesn't mention Titan GC's rate-limit only works when ```rate-limiter-mode``` is ```ReadOnly``` or ```AllIo``` > @hykych there are documentation https://docs.pingcap.com/tidb/stable/tikv-configuration-file#rate-limiter-mode

> @hykych actually the rate limiter should also work for `kWritesOnly` mode. maybe in your case there are a lot of data deletion so that the read IO for GC...

@kernelai 请问有教程说明一下如果组合pika和codis嘛，包括他们相互兼容的版本，配置等等。

Also I saw `pkcluster` on wiki. But after I built v3.3.6 docker image. I can't find the binary `pkcluster`.

@dgrove-oss The reason why I ask about how to use runc is I found that at sometime docker hangs(does not respond) for more than 10 seconds if operate docker too...