| Package | Description | 
|---|---|
| org.apache.hadoop.mapreduce.v2.app.rm.preemption | 
| Modifier and Type | Method and Description | 
|---|---|
| void | AMPreemptionPolicy. preempt(AMPreemptionPolicy.Context context,
       org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionRequests)Callback informing the policy of ResourceManager. | 
| void | KillAMPreemptionPolicy. preempt(AMPreemptionPolicy.Context ctxt,
       org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionRequests) | 
| void | CheckpointAMPreemptionPolicy. preempt(AMPreemptionPolicy.Context ctxt,
       org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionRequests) | 
| void | NoopAMPreemptionPolicy. preempt(AMPreemptionPolicy.Context ctxt,
       org.apache.hadoop.yarn.api.records.PreemptionMessage preemptionRequests) | 
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