@Override
  public int evictBlocksRangeByHfileName(String hfileName, long initOffset, long endOffset) {
    return l1Cache.evictBlocksRangeByHfileName(hfileName, initOffset, endOffset)
      + l2Cache.evictBlocksRangeByHfileName(hfileName, initOffset, endOffset);
  }
Returns the list of fully cached files
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CombinedBlockCache.java