[Gluster-users] Updating gluster configuration

[Basavanagowda Kanur]

Matt,
  replies inline.

On Sun, Dec 28, 2008 at 4:01 AM, Matt Lawrence <matt.lawrence at tamu.edu>wrote:

> I have maintenance windows on Wednesday & Thursday to make changes to
> the throughput cluster here and I could use some advice.
>
> There are 130 system, 126 of them are compute nodes, connected via Gb
> ethernet with the head node and fileserver node connected via 10Gb
> ethernet.  At the moment, my configuration from last summer, which was
> done in a hurry, is running really, really slow.
>
> My hope is to upgrade to 1.4.0, but I'll settle for a release candidate
> if I have to.  Here is the rough plan for how I'm going to configure it.
>
> Server:
> XFS filesystem -->> io-thread -->> tcp

XFS filesystem -->> io-thread -->> write-behind -->> tcp

>
>
>
> Client:
> brick -->> readahead -->> writebehind
>
brick -->> io-thread -->> write-behind -->> io-cache -->> readahead

>
> Should I be considering readahead/writebehind on the server end?
> How about threads on the client?
> Any other translators I should consider?
>
> I'm hoping to spend much of Thursday doing performance testing.  What
> benchmarks do y'all recommend?  I was planning on trying iozone, but
> could easily be convinced to go with something else.  The plan is to
> script it to run automatically with a number of different settings for
> readahead & writebehind.  Any particular words of wisdom?
>



> Thanks for the help!
>
> -- Matt
>
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-- 
gowda
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