红帽全球峰会11.3.4. 关于只读优化
当要求参与者准备时，可以向协调者表明其在交易期间没有修改任何数据。不需要向这类参与者告知交易结果，因为参与者的承诺不会影响交易。提交协议的第二阶段中可以省略该只读参与者。
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