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Fix Hadoop leap second bug without rebooting

Source: http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/

Applied our hadoop node having CPU usage issue. (CentOS)

service ntpd stop
date `date +”%m%d%H%M%C%y.%S”`
service ntpd start

Works like a charm!