Re: [Moosefs-users] mfs mount generates high trafic from chunks

[Michał B. <mic...@ge...>]

Don't you have any additional replications between chunkservers? Does the
webserver and one of chunkservers use the same machine?


Kind regards
Michał Borychowski 
MooseFS Support Manager



-----Original Message-----
From: Eduard Iacoboaia [mailto:edu...@di...] 
Sent: Friday, January 22, 2010 12:31 PM
To: moo...@li...
Subject: Re: [Moosefs-users] mfs mount generates high trafic from chunks

Hi.

This is the traffic incoming on port 9422 in the mount server:
 --------------------------------------------------------
 |  Rate  |              Average for                    |
 --------------------------------------------------------
 |########|    3 sec     |    15 sec     |    30 sec    |
 --------------------------------------------------------
 |  bits  |    154.2M    |     142.4M    |     145.7M   |
 |  pkts  |     13.1K    |      12.1K    |      12.3K   |
 --------------------------------------------------------


This is the outgoing port 80 from the same server:
 --------------------------------------------------------
 |  Rate  |              Average for                    |
 --------------------------------------------------------
 |########|    3 sec     |    15 sec     |    30 sec    |
 --------------------------------------------------------
 |  bits  |      1.6M    |       1.2M    |       1.2M   |
 |  pkts  |      171     |       129     |       127    |
 --------------------------------------------------------


I also attached a screenshot. If it's not what you needed, please let me
know.

Thanks,
--
Eduard

Michał Borychowski wrote:
> And what do you have on graphs from chunkservers? Could you send us 
> the screenshots from the cgi monitor?
>
> Is there really 35-70Mb transfer between mfsmount and chunkservers?
>
>
> Kind regards
> Michal
>
> -----Original Message-----
> From: Eduard Iacoboaia [mailto:edu...@di...]
> Sent: Thursday, January 21, 2010 11:29 AM
> To: moo...@li...
> Subject: [Moosefs-users] mfs mount generates high trafic from chunks
>
> Hi.
>
> I have a webserver that has the files (~1.1mil files and 280gb) 
> mounted over mfs 1.6.11. Although the server generates about 2-3mbit 
> of http trafic, it retrieves from chunk servers between 35 and 70mbit 
> (5sec average). The mount has:
>
> mfscachefiles,mfsattrcacheto=10,mfsentrycacheto=10,mfsdirentrycacheto=
> 20
>
> Is there anything I can do to lower the amount of traffic from chunks?
>
> Thanks,
> --
> Eduard
>
>
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