private long getDelEntryId(CountingDataInputStream dis, int idByteCount) throws IOException {
    return calcDelEntryId(getEntryIdDelta(dis, idByteCount));
  }
Returns true if the drId region has been destroyed or if oplogKeyId preceeds the last clear
done on the drId region
geode-core/src/main/java/org/apache/geode/internal/cache/Oplog.java