private void snapshotMobRegion(final RegionInfo regionInfo) throws IOException {
    snapshotManifest.addMobRegion(regionInfo);
    monitor.rethrowException();
    status.setStatus("Completed referencing HFiles for the mob region of table: " + snapshotTable);
  }
Takes a snapshot of the mob region
hbase-server/src/main/java/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.java