void setStartOffsetOfLastIndexSegmentForDeleteCheck(Offset startOffsetOfLastIndexSegmentForDeleteCheck) {
    this.startOffsetOfLastIndexSegmentForDeleteCheck = startOffsetOfLastIndexSegmentForDeleteCheck;
    flush();
    logger.trace("{}: Set startOffsetOfLastIndexSegmentForDeleteCheck to {}", file,
        this.startOffsetOfLastIndexSegmentForDeleteCheck);
  }
Sets the start {@link Offset} of the last index segment for checking deletes.
@param startOffsetOfLastIndexSegmentForDeleteCheck he start {@link Offset} of the last index segment for checking
                                                   deletes.
ambry-store/src/main/java/com/github/ambry/store/CompactionLog.java