[tahoe-dev] Administration / System Tuning etc.

Peter Secor secorp at allmydata.com
Fri Feb 19 21:02:19 PST 2010


Justin - a bunch of us are on #tahoe-lafs right now if you want to join us.

Ps

On 2/19/10 8:59 PM, Justin Stottlemyer wrote:
> I got to meet Peter yesterday.  Good guy, you all have done a great job
> with Tahoe so far.
>
> On to my questions.
>
> Can someone give me a break down of what happens when a file enters the
> system?  I have a guess based on system activity, but I'd like to know
> the real answer.
>
> http://diagrammr.com is a great online tool for this sort of thing if
> you don't already have a block style diagram and you are so inclined, or
> are just looking for a new tool.
>
> I'm more of a scripter, architect, prototyper, operational expert than
> hard core coder.  So I'm not sure if there is a more appropriate forum
> for these questions, or if anyone here hangs on IRC for interactive
> conversations.
>
> Is there a good way to calculate Memory consumed (or needed per system)
> by # of Nodes and Node Size?
>
> What is the most performant way to implement a local grid?
>
> I've built a 45 Disk System with 4G of memory and a Dual Core 3.3Ghz
> chip.    I was running on the default config of 3,7,10.   I assume that
> reducing the number of copies will reduce load.  It's running Karmic
> Koala 9.10 Server.
>
>   apt-get grabbed 1.5 for me. When will 1.6 be making it's way to the
> repository?
>
> The reason for these questions is that today while testing against this
> box with a large ~200MB file, I/O was relatively low, CPU was spiked to
> 100% and the system was utilizing a lot more Swap (any) than I would
> like even for small files 3.6MB.
>
> I'm sure a few more questions will crop up as you guys reply.
>
> -- Justin
>
>
>
>
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