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<div class="moz-cite-prefix">On 12/28/2014 11:39 AM, Sean Cribbs
wrote:<br>
</div>
<blockquote
cite="mid:CAHsw=e3=YNPdEuk3TfnYDqmE29aJkBtuW9-bwXvqnTVtmkfvVw@mail.gmail.com"
type="cite">
<div dir="ltr">Global registration is inherently a consensus
problem, and thus will have problems with liveness, as you've
discovered. I can't speak to the implementation of the 'global'
module, but I would suspect it is not partition-tolerant. Is
there a way you can reconfigure your application to have
locally-registered processes (one-per-node), or not require a
single distribution point?
<div><br>
</div>
<div>There is also some work done by my colleague Chris
Meiklejohn for eventually-consistent (and partition-tolerant)
process groups, if you don't require a single authoritative
process: <a moz-do-not-send="true"
href="https://github.com/cmeiklejohn/riak_pg">https://github.com/cmeiklejohn/riak_pg</a></div>
</div>
</blockquote>
If you need something that has already been in production, you need
not look further than Erlang/OTP with
<a class="moz-txt-link-freetext" href="http://www.erlang.org/doc/man/pg2.html">http://www.erlang.org/doc/man/pg2.html</a> . There also is
<a class="moz-txt-link-freetext" href="https://github.com/okeuday/cpg/">https://github.com/okeuday/cpg/</a> which has more features without ets
usage to avoid contention (and it supports the via syntax, if you
need that (i.e., <span class="code">{via,Module,ViaName})).</span><br>
<br>
<blockquote
cite="mid:CAHsw=e3=YNPdEuk3TfnYDqmE29aJkBtuW9-bwXvqnTVtmkfvVw@mail.gmail.com"
type="cite">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sat, Dec 27, 2014 at 5:36 AM,
289602744 <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:289602744@qq.com" target="_blank">289602744@qq.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>These days,I found global did not work well.</div>
<div>I have hundreds of nodes,and these nodes are connected
with each other.</div>
<div>But on some nodes, I can't get a process's global
registered name with global:whereis_name, althrough I can
get the node info by net_kernel:node_info/1</div>
<div>I didnot find a way to resolve this problem. Unless I
unregister that process's name and then register the name
again, and then, I can get the global name by
global:whereis_name/1.</div>
<div><span style="line-height:1.5">Is there anything wrong
with global? with so many nodes, I can't unregister and
then register a process name every time I find global
return me an undefined. </span></div>
<div><span style="line-height:1.5"><br>
</span></div>
<div><span style="line-height:1.5"><br>
</span></div>
<br>
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<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature">Sean Cribbs <<a
moz-do-not-send="true" href="mailto:sean@basho.com"
target="_blank">sean@basho.com</a>><br>
Sr. Software Engineer<br>
Basho Technologies, Inc.<br>
<a moz-do-not-send="true" href="http://basho.com/"
target="_blank">http://basho.com/</a></div>
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