Map Reduce job on YARN hangs in ACCEPTED state
I have a three node cluster 
Using cores=8 memory=32GB disks=2 hbase=False
Profile: cores=8 memory=31744MB reserved=1GB usableMem=31GB disks=2
Num Container=4
Container Ram=7680MB
Used Ram=30GB
Unused Ram=1GB
yarn.scheduler.minimum-allocation-mb=7680
yarn.scheduler.maximum-allocation-mb=30720
yarn.nodemanager.resource.memory-mb=30720
mapreduce.map.memory.mb=3840
mapreduce.map.java.opts=-Xmx3072m
mapreduce.reduce.memory.mb=7680
mapreduce.reduce.java.opts=-Xmx6144m
yarn.app.mapreduce.am.resource.mb=3840
yarn.app.mapreduce.am.command-opts=-Xmx3072m
mapreduce.task.io.sort.mb=1024

