<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:2.0cm 42.5pt 2.0cm 3.0cm;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body bgcolor="white" lang="RU" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi guys,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the information and links!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Sergey Zhemzhitsky<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Phone.
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">+7 495 2580500 ext. 1246<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Michael Truog [mailto:mjtruog@gmail.com]
<br>
<b>Sent:</b> Saturday, September 22, 2012 5:58 AM<br>
<b>To:</b> Joel Meyer; Zhemzhitsky Sergey<br>
<b>Cc:</b> riak-users@lists.basho.com; erlang-questions<br>
<b>Subject:</b> Re: [erlang-questions] Large scale deployments testing<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On 09/21/2012 03:00 PM, Joel Meyer wrote: <o:p></o:p></p>
<p class="MsoNormal">Hi Sergey, <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">We (OpenX) have a riak_core based application that's running on a 125 node cluster (there are also other smaller clusters). We never really tested to see where it would fall over (and the cluster was much smaller when it started), but I
see no indicators that it will fall over when we add the 126th node. FWIW, it's running riak_core 0.13.0, and I assume the newer versions of riak_core have only gotten better. Answers to some of your other questions (based solely on my experience) in-line
below.<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
The riak list mentioned optimism about riak clusters of 200+ nodes in a thread here:<br>
<a href="http://riak-users.197444.n3.nabble.com/does-Riak-cluster-maintain-fully-connected-Erlang-network-td3695942.html">http://riak-users.197444.n3.nabble.com/does-Riak-cluster-maintain-fully-connected-Erlang-network-td3695942.html</a><br>
<br>
However, as mentioned in the thread, a fully connected network of nodes (fully connected because of the usage of distributed Erlang) does have a natural limit (due to the network speed) on scalability with the net tick time. You can always increase the net
tick time, but then failures will take longer to detect.<br>
<br>
So, your success may rely on your fault-tolerance requirements.<o:p></o:p></p>
</div>
<p><span style="font-family:'Arial';font-size:8pt;">_______________________________________________________</span></p>
<p><span style="font-family:'Arial';font-size:8pt;"></span></p>
<p><span style="font-family:'Arial';font-size:8pt;"> </span></p>
<p><span style="font-family:'Arial';font-size:8pt;">The information contained in this message may be privileged and conf idential and protected from disclosure. If you are not the original intended recipient, you are hereby notified that any review, retransmission, dissemination, or other use of, or taking of any action in reliance upon, this information is prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and delete it from your computer. Thank you for your cooperation. Troika Dialog, Russia. </span></p>
<p><span style="font-family:'Arial';font-size:8pt;">If you need assistance please contact our Contact Center (+7495) 258 0500 or go to www.troika.ru/eng/Contacts/system.wbp </span></p>
<p><span style="font-family:'Arial';font-size:8pt;"> </span></p></body>
</html>