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Posted to common-user@hadoop.apache.org by 谢良 <xi...@xiaomi.com> on 2013/02/21 03:26:21 UTC
答复: Topology script frequency
I'd submitted a patch(HADOOP-8928.txt) to reload topology config dynamically like "hdfs dfsadmin -refreshTopology" style several months before, see HADOOP-8928 for more details.
Regards,
Liang
________________________________
发件人: Chris Embree [cembree@gmail.com]
发送时间: 2013年2月21日 4:17
收件人: user@hadoop.apache.org
主题: Topology script frequency
I've checked all of the documentation, books and google searches I can think of....
I have a working topology script. I have dynamic IP's. I have an automated process to update the rack data when a datanode changes IP.
What I don't have is any clue as to when the NN reads this script. If I execute it right now with 10.10.10.10 it'll return /dc1/rack3 When I run hadoop balancer I see /default/rack/10.10.10.10:50010<http://10.10.10.10:50010>
I really don't want to have to restart the NN for IP changes to be noticed.
Any brilliant insights?
Thanks
Chris