Re: [MooseFS-Users] How many clients dose MFS max support?

[<pen...@ic...>]

That's great.
But master is single thread, I think this is one of a  limitation to master.



pen...@ic...
 
From: Davies Liu
Date: 2015-09-19 01:21
To: Aleksander Wieliczko
CC: pen...@ic...; moosefs-users
Subject: Re: [MooseFS-Users] How many clients dose MFS max support?
I think MFS can't scale well if there are more than 2k clients. We saw
the CPU usage of master went to almost 100% with about 1k clients and
not high traffic.
 
In order to scale to thousands of clients, MFS should use
epoll/kqueue. I have a branch that use epoll instead of poll:
https://github.com/davies/moosefs/commits/douban
 
On Fri, Sep 18, 2015 at 2:31 AM, Aleksander Wieliczko
<ale...@mo...> wrote:
> Hi
> All depends.
> Question is how many clients you want to have and how many operations they
> will perform on one master?
>
> We have instances with about 300 client in production environment.
> In our software we don't have any client connection limits, but number of
> parallel connections close to 10 000 creates different level of problem.
>
> Best regards
> Aleksander Wieliczko
> Technical Support Engineer
> MooseFS.com
>
> On 18.09.2015 09:20, pen...@ic... wrote:
>
> hi all:
>
>     How many clients does Moosefs max support?
>
>     Thanks for your help.
>
>     best regards.
> ________________________________
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-- 
- Davies