Hi Dong, some thoughts on your second mail. Since currently logs for multiple 
partitions are created sequentially not in parallel, it's probably okay for us 
to simply select the directory with most disk spaces in a single round of 
`nextLogDir` calling. which can be guaranteed to lead to extreme skew. Does it 
make any senses?


________________________________
发件人: Hu Xi <huxi...@hotmail.com>
发送时间: 2017年8月3日 16:51
收件人: dev@kafka.apache.org
主题: 答复: 答复: [DISCUSS] KIP-178: Size-based log directory selection strategy


Dong, yes, many thanks for the comments from the second mail. Will take some 
time to figure out an algorithm to better handle the situation you mentioned. 
Thanks again.


________________________________
发件人: Dong Lin <lindon...@gmail.com>
发送时间: 2017年8月3日 12:07
收件人: dev@kafka.apache.org
主题: Re: 答复: [DISCUSS] KIP-178: Size-based log directory selection strategy

Hu, I think this is worth discussion even if it doesn't require new config.
Could you also read my second email?

On Wed, Aug 2, 2017 at 6:17 PM, Hu Xi <huxi...@hotmail.com> wrote:

> Thanks Dong,  do you mean it is more like a naive improvement and no KIP
> is needed  then?
>
> ________________________________
> 发件人: Dong Lin <lindon...@gmail.com>
> 发送时间: 2017年8月3日 9:10
> 收件人: dev@kafka.apache.org
> 主题: Re: [DISCUSS] KIP-178: Size-based log directory selection strategy
>
> Hey Xu,
>
> Thanks for the KIP. This is a very good idea to select log directory based
> on the free disk space. Do you think we can simply simply change the
> implementation to select log directory based on the free disk space instead
> of adding a new config? Or is there any good reason that user will want to
> select log directory with the least partition number instead of the one
> with the most free disk space?
>
> Thanks,
> Dong
>
>
> On Wed, Aug 2, 2017 at 6:03 PM, Hu Xi <huxi...@hotmail.com> wrote:
>
> > Hi all, how do you think of this KIP? Any comments are welcomed.
> >
> >
> > ________________________________
> > 发件人: Hu Xi <huxi...@hotmail.com>
> > 发送时间: 2017年7月18日 15:21
> > 收件人: dev@kafka.apache.org
> > 主题: [DISCUSS] KIP-178: Size-based log directory selection strategy
> >
> >
> > Hi all,
> >
> >      KIP-178 is created for a discussion on how LogManager selects log
> > directory. In this KIP, a new strategy is introduced to allow for the
> real
> > disk spaces for each directories. Be free to drop your comments here.
> > Thanks.
> >
>

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