public void setWriteBufferHighWaterMark(final Integer writeBufferHighWaterMark) {
        this.writeBufferHighWaterMark = writeBufferHighWaterMark;
    }
set writeBufferHighWaterMark.

@param writeBufferHighWaterMark write buffer high water mark
shenyu-common/src/main/java/org/apache/shenyu/common/config/NettyChannelProperties.java