The one in 0.20.2 doesn't support it. However, the Cloudera Distribution of Hadoop has backported preemption (and the other fair scheduler features in 0.21), so you could try that if you want preemption on a 0.20 cluster.
Matei On 8/29/2010 10:37 PM, xiujin yang wrote: > Hadoop Version: 0.20.2 > Scheduler: Fair scheduler > > Now I use fair scheduler to arrange job, but I found the scheduler didn't > support preemption? > > Does 0.20.2 support preemption? > > I know 0.21.0 will support, > https://issues.apache.org/jira/browse/MAPREDUCE-551 > > > Thank you in advance. > > > Best, > > Xiujin Yang > > >
