Re: [Moosefs-users] Write starvation

[Robert S. <rsa...@ne...>]

The one chunk server is also the master. As we free up space on other servers we will add more chunk servers. We currently only have two. The other chunk server has 36 x 2 TB drives and 64 GB of RAM.

I agree with your comments on multiple chunk servers. That is one of the major reasons why we chose MooseFS.

Robert

Incomprehensible email compliments of my iPad

On Jun 29, 2011, at 8:32 PM, WK <wk...@bn...> wrote:

> On 6/29/2011 11:29 AM, Robert wrote:
>> 
>> Yes, the master server is working hard. But I would still expect a somewhat fair distribution of load between read and write.
>> 
>> The specs:
>> 
>> 2 x quad core Xeon E5405 @ 2GHz.
>> 64 GB of RAM
>> 32 x 2 TB 7200 RPM SATA disks
>> 68 million file system objects
>> 65.4 million files
>> No swap is being used
>> mfsmaster is using 23 GB of RAM.
>> 
> 
> OK, I am sorry if this seem silly and I'm completely missing something.
> 
> But I am confused as to the above specs.
> 
> Is your Master and Chunkserver on the same machine?
> 
> or are those 32 x 2TB drives spread out on how many chunkservers?
> 
> Our experience has been the more chunkservers we have, the better the performance because the read/writes are spread out among the chunkservers  (in addition to individual spindles on each chunkserver).
> 
> WK
> 
> ------------------------------------------------------------------------------
> All of the data generated in your IT infrastructure is seriously valuable.
> Why? It contains a definitive record of application performance, security 
> threats, fraudulent activity, and more. Splunk takes this data and makes 
> sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-d2d-c2
> _______________________________________________
> moosefs-users mailing list
> moo...@li...
> https://lists.sourceforge.net/lists/listinfo/moosefs-users