void addOnlinePMID(DiskRegionView dr, PersistentMemberID pmid) {
    lock(true);
    try {
      if (regionStillCreated(dr)) {
        if (dr.addOnlineMember(pmid)) {
          if (dr.rmOfflineMember(pmid) || dr.rmEqualMember(pmid)) {
            ifLiveRecordCount--;
          }
          writePMIDRecord(IFREC_ONLINE_MEMBER_ID, dr, pmid, true);
        }
      }
    } finally {
      unlock(true);
    }
  }
Write a clear with an RVV record.
geode-core/src/main/java/org/apache/geode/internal/cache/DiskInitFile.java