<div dir="ltr"><div class="gmail_extra">No, anti-affinity does not work that way. It allows to distribute nodes running the same process, but you can't separate nodes running different processes (i.e. master and workers).</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">Dmitry</div><div class="gmail_extra"> <br><br><div class="gmail_quote">2013/12/5 Arindam Choudhury <span dir="ltr"><<a href="mailto:arindam@live.com" target="_blank">arindam@live.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">Hi,<br><br>Is it possible using anti-affinity to reserve a compute node only for master(namenode+jobtracker)?<br><br>Regards,<br>Arindam<br><br><div><hr>From: <a href="mailto:arindam@live.com" target="_blank">arindam@live.com</a><br>
To: <a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a><br>Date: Thu, 5 Dec 2013 12:52:23 +0100<div><div class="h5"><br>Subject: Re: [openstack-dev] [savanna] Anti-affinity<br>
<br>
<div dir="ltr">Hi,<br><br>Thanks a lot for your reply.<br><br>Regards,<br><br>Arindam<br><br><div><hr>Date: Thu, 5 Dec 2013 15:41:33 +0400<br>From: <a href="mailto:dmescheryakov@mirantis.com" target="_blank">dmescheryakov@mirantis.com</a><br>
To: <a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a><br>Subject: Re: [openstack-dev] [savanna] Anti-affinity<br><br><div dir="ltr">Arindam,<div><br></div><div>It is not achievable with the current Savanna. The anti-affinity feature allows to run one VM per compute-node only. It can not evenly distribute VMs in case the number of compute nodes is lower than the desired size of Hadoop cluster.</div>
<div><br></div><div>Dmitry</div></div><div><br><br><div>2013/12/5 Arindam Choudhury <span dir="ltr"><<a href="mailto:arindam@live.com" target="_blank">arindam@live.com</a>></span><br>
<blockquote style="border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">HI,<br><br>I have 11 compute nodes. I want to create a hadoop cluster with 1 master(namenode+jobtracker) with 20 worker (datanode+tasktracker).<br><br>How to configure the Anti-affinty so I can run the master in one host, while others will be hosting two worker?<br>
<br>I tried some configuration, but I can not achieve it.<br><br>Regards,<br>Arindam<br> </div></div>
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