private void shutdownBlankSegments() {
        this.allocateLock.lock();
        try {
            for (final AllocatedResult ret : this.blankSegments) {
                if (ret.segmentFile != null) {
                    ret.segmentFile.shutdown();
                }
            }
        } finally {
            this.allocateLock.unlock();
        }
    }
It's wrote position is from start(HEADER_SIZE) but it's not the last file, SHOULD not happen.
jraft-core/src/main/java/com/alipay/sofa/jraft/storage/log/RocksDBSegmentLogStorage.java