public static Counters toYarn(org.apache.hadoop.mapreduce.Counters counters) {
if (counters == null) {
return null;
}
Counters yCntrs = recordFactory.newRecordInstance(Counters.class);
yCntrs.addAllCounterGroups(new HashMap<String, CounterGroup>());
for (org.apache.hadoop.mapreduce.CounterGroup grp : counters) {
CounterGroup yGrp = recordFactory.newRecordInstance(CounterGroup.class);
yGrp.setName(grp.getName());
yGrp.setDisplayName(grp.getDisplayName());
yGrp.addAllCounters(new HashMap<String, Counter>());