title: fsimage contains deleted path
body: <p>I fetch fsimage data from HDFS using following cmds:</p>
  <pre><code>hdfs dfsadmin -fetchImage /home/data/scripts/tmp/fsimage.raw
  hdfs oiv -p Delimited -delimiter ,  -t  temporaryDir -i /home/data/scripts/tmp/fsimage.raw -o /home/data/scripts/tmp/fsimage.csv
  </code></pre>
  <p>The fsimage data are parsed as expected. However, I can find some removed paths in it:</p>
  <ul>
  <li><p>this is a normal path:</p>
  <p>/user/history/done_intermediate/admin/job_1639970873836_92653.summary,3,2022-01-19 17:05,2022-01-19 17:05,134217728,1,489,0,0,-rwxrwx---,admin,supergroup</p>
  </li>
  <li><p>this is an abnormal path, <strong>it was removed some days ago</strong>:</p>
  <p>/home/hive/warehouse/nhn_fi_ii_test.db/tableA/pt_d=2019-08-13,0,2021-12-14 11:20,1970-01-01 08:00,0,0,0,-1,-1,drwxr-xr-x,hdfs,supergroup</p>
  </li>
  </ul>
  <p>I have 2 questions:</p>
  <ol>
  <li>Why the removed files can still be remained in fsimage?</li>
  <li>How to distinguish them? I try to filter them by the 4th column the 'last access time', if it equals '1970', then this is a deleted path...Is this correct?</li>
  </ol>
  <p>Any help is appreciated.</p>