long testGetOplogFileLength() throws IOException {
    long result = 0;
    if (crf.raf != null) {
      result += crf.raf.length();
    }
    return result;
  }
Return true if it is possible that compaction of this oplog will be done.
geode-core/src/main/java/org/apache/geode/internal/cache/OverflowOplog.java