title: Aggregate Resource Allocation for a job in YARN
body: <p>I am new to Hadoop. When i run a job, i see the aggregate resource allocation for that job as 251248654 MB-seconds, 24462 vcore-seconds. However, when i find the details about the cluster, it shows there are 888 Vcores-total and 15.90 TB Memory-total. Can anyone tell me how this is related? what does MB-second and Vcore-seconds refer to for the job.</p>
  
  <p>Is there any material online to know these? I tried surfing, dint get a proper answer</p>