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<DIV style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif">I think it might be useful to think about how to integrate savana into heat.<BR>When auto scale usually the first created node will be removed first.</DIV></DIV>
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<SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif; FONT-WEIGHT: bold">发件人: </SPAN><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif"><A href="mailto:jay.lau.513@gmail.com">Jay Lau</A></SPAN><BR><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif; FONT-WEIGHT: bold">发送时间: </SPAN><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif">2013/12/11 23:46</SPAN><BR><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif; FONT-WEIGHT: bold">收件人: </SPAN><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif"><A href="mailto:openstack-dev@lists.openstack.org">OpenStack Development Mailing List</A></SPAN><BR><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif; FONT-WEIGHT: bold">主题: </SPAN><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri,sans-serif">[openstack-dev] [OpenStack][Heat] AutoScaling scale down issue</SPAN><BR><BR></DIV>
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<DIV>Greetings,<BR><BR></DIV>Here come a question related to heat auto scale down.<BR><BR></DIV>The scenario is as following:<BR></DIV>I was trying to deploy hadoop cluster with heat Auto Scaling template. <BR><BR>When scale up a slave node, I can use user-data to do some post work for configuration file on hadoop master node base on the information of slave node (The mainly configuration file is conf/slaves as I need to put slave node to this file);<BR><BR>But when scale down, seems I have no chance to do some configuration for the master node (Remove the scale down node from conf/slaves) as master node do not know which slave node was scale down.<BR><BR></DIV>
<DIV>Does anyone has some experience on this?<BR></DIV>
<DIV><BR></DIV>Thanks,<BR><BR></DIV>Jay<BR></DIV></BODY></HTML>