I read this post on Paxos paxos value choice but still I am not clear. Assume we run the Paxos for first time and Proposer sends the Prepare and the Acceptors reply with (null, null) since they have not learned any value and so Proposer agrees upon its own value and sends it to the acceptors which they accept. The thing which is confusing me is when a Proposer has received the Promise-acks and needs to send an Accept message:
If any Acceptors had previously accepted any proposal, then they'll have sent their values to the Proposer, who now must set the value of its proposal to the value associated with the highest proposal number reported by the Acceptors. (from Wikipedia)
これが理解できません。「アクセプターによって報告された最大の提案番号に関連付けられた値」を選択することの意味は何ですか? 誰かがこれを例で説明できますか?