<div dir="ltr">Dear Yu,<div style><br></div><div style>As you have mentioned, <a href="https://tahoe-lafs.org/trac/tahoe-lafs/ticket/467">ticket #467</a> is not resolved yet, hence there is no way to set servers priorities at the moment. And distribution still remains <span style="font-family:arial,sans-serif;font-size:13px">different pseudo-random permutation for each file.</span></div>
<div style><span style="font-family:arial,sans-serif;font-size:13px">You can manually track </span><a href="https://tahoe-lafs.org/trac/tahoe-lafs/ticket/467">ticket #467</a> or <a href="http://tahoe-lafs.org">Tahoe-LAFS news</a> to know when it will be resolved.</div>
<div style><br></div></div><div class="gmail_extra"><br clear="all"><div><div><em>Sincerely,<br>Oleksandr Drach.</em></div></div>
<br><br><div class="gmail_quote">2013/5/26 Yu Xiang <span dir="ltr"><<a href="mailto:xy336699@gwu.edu" target="_blank">xy336699@gwu.edu</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Dear all,</div><div>Thanks for your kindly help on this issue, I did see in the source code storage-client.py, the roadmap in the beginning says "4: enable static config: tahoe.cfg can add descriptors. Make the introducer optional. This closes #467", and ticket 467 is about how to set which server you would like to upload to in tahoe.cfg in the very beginning, that ticket doesnt seem to have a solution in the ticket page, has this issue already been solved in the current version of tahoe in storage-client.py? Since i didnt see the prefered peer setup part in tahoe.cfg file when node created.</div>
<div> </div><div>Any help would be highly appreciated!</div><div> </div><div>Best,</div><div>Yu</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, May 25, 2013 at 1:30 AM, Oleksandr Drach <span dir="ltr"><<a href="mailto:luckyredhot@gmail.com" target="_blank">luckyredhot@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p>Dear Yu, </p>
<p>Here is the reply on server selection:<br>
" The current system will try to distribute the shares as widely as possible, using a different pseudo-random permutation for each file, but it is completely unaware of server properties like "location". If you have more free servers than shares, it will only put one share on any given server, but you might wind up with more shares in one location than the others."</p>
<p>It can be found in FAQ: <a href="https://tahoe-lafs.org/trac/tahoe-lafs/wiki/FAQ#Q12_server_location_distribution" target="_blank">https://tahoe-lafs.org/trac/tahoe-lafs/wiki/FAQ#Q12_server_location_distribution</a>.</p>
<p>Should you have further questions feel free to ask them!</p><div><div>
<div class="gmail_quote">On May 25, 2013 7:22 AM, "Yu Xiang" <<a href="mailto:xy336699@gwu.edu" target="_blank">xy336699@gwu.edu</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
<div dir="ltr"><div>Dear Zooko,</div><div>then do you know how tahoe decided to upload how many of the file chunks to a certain server? I didnt see any algorithm to allocate chunks in the source code, and also the load balancing server selection algorithm is not seen in client-storage.py where should be related to this. </div>
<div> </div><div>Can you give me some insight of how tahoe is doing this?</div><div> </div><div>Your help will be high appreciated.</div><div> </div><div>Best,</div><div>Yu</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sat, May 25, 2013 at 12:02 AM, Zooko O'Whielacronx <span dir="ltr"><<a href="mailto:zookog@gmail.com" target="_blank">zookog@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
<div>On Sat, May 25, 2013 at 3:16 AM, Yu Xiang <<a href="mailto:xy336699@gwu.edu" target="_blank">xy336699@gwu.edu</a>> wrote:<br>
> Hi all,<br>
> I see that the tahoe is using (10,3) erasure coding, since the file is<br>
> broken into 10 chunks,<br>
<br>
</div>That's right, but that is configurable. See<br>
<a href="https://tahoe-lafs.org/trac/tahoe-lafs/browser/trunk/docs/configuration.rst" target="_blank">https://tahoe-lafs.org/trac/tahoe-lafs/browser/trunk/docs/configuration.rst</a><br>
<div><br>
<br>
> does the current version of tahoe allows users to<br>
> setup how many chunks it would like to upload to a certain server?<br>
<br>
</div>Not yet. To support that is the topic of<br>
<a href="https://tahoe-lafs.org/trac/tahoe-lafs/wiki/ServerSelection" target="_blank">https://tahoe-lafs.org/trac/tahoe-lafs/wiki/ServerSelection</a><br>
<br>
Regards,<br>
<br>
Zooko<br>
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