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From sameer <>
Subject Re: list delays
Date Thu, 12 Jun 1997 19:04:41 GMT
	I'd be willing to mirror apache stuff *and* hyperreal stuff
somewhere at C2. I will just need to figure out that stuff,
in my 'copious spare time', and I suppose *all* hyperreal pages will
have to be mirror-friendly.

> Let's get the mirror stuff up asap.  As of this morning Apache traffic
> was over half the total HTTP traffic from hyperreal.
> ####
> In an unfortunate reversal of fortune, it has been declared by the
> "higher ups" at Organic (I'm not at the top of the pyramid there, it
> may surprise folks to know) that bandwidth on Hyperreal is now
> officially "too much".  Unchecked, it would be consistantly over 750
> kbits/sec, sometimes as high as 1MB/sec, and since Organic's total
> potential "quality" throughput (defined as 50% of potential) is only
> 2-3MB/sec, hyperreal needs to be scaled back until we can get more
> bandwidth in here.  In the long term things look very rosy - serious
> talk of a T3 abounds - but for the medium term (next 4-5 months) we
> will have to endeavor to reduce bandwidth.  Organic would like to see
> it reduced to 450-500kbits during the "peak"  hours.  Until we're down
> to that, the router at Organic is configured to drop a couple packets
> every now and then, in effect rate limiting us to 500kbits/sec or so. 
> As a consequence, interactive traffic (telnet and vrave) will feel the
> brunt of the problem, as they rely on reliable packet delivery the
> most.  If we reduce overall traffic those services should improve. 
> Here are the steps I am taking in an attempt to reduce bandwidth:
> 1) I am doing a thorough analysis using some TCP tools to see exactly
> where bandwidth is being consumed.  Initial investigations suggest
> mailing list traffic is just as large as web traffic. 
> 2) After today, Hyperreal will not take on significant new projects
> where bandwidth is non-negligible. 
> 3) I configured the mailing list delivery engine, qmail, to go a lot
> slower than normal.  Before, it could allow for 90 simultaneous
> transmissions, I've cut that back to 30.  Mailing list mail will take
> longer to deliver.  In addition, there may be some other mailing list
> policies established to shift traffic to non-peak hours. 
> 4) The FTP servers have been cut back to 20 simultaneous connections.
> 5) Apache web traffic will be pushed to mirrors as much as possible.
> 6) I will be looking to see if there are any easy ways to reduce
> hyperreal web traffic. 
> I am exploring many options at this point for more bandwidth
> off-Organic.  Bandwidth can be made available in many forms - if we
> can find an off-site mail relay willing to forward mailing list mail
> for us, for example, or someone willing to mirror Hyperreal web
> content. 
>         Brian
> --=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--

Sameer Parekh					Voice:   510-986-8770
President					FAX:     510-986-8777

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