Zhang, S., Dong, Y., Ouyang, Y., Yin, Z., Peng, K.: Adaptive neural control for robotic manipulators with output constraints and uncertainties. IEEE Trans. Neural Netw. Learn. Syst. 29(11), 5554–5564 (2018) A：到浅滩准备，直视鲨鱼，当鲨鱼靠近张嘴咬你瞬间出矛，即可打中鲨鱼且鲨鱼无法对你造成伤害，与此同时回头补两至三刀，以此类推。鲨鱼死亡后会掉落四个生鲨鱼肉、一个鲨鱼头。鲨鱼如果不捡完，刷新时间会较长，如果全部捡完，刷新时间较快。

Huang, A.C., Wu, S.C., Ting, W.F.: A FAT-based adaptive controller for robot manipulators without regressor matrix: theory and experiments. Robotica 24(2), 205–210 (2006) Azimi, V., Nguyen, T.T., Sharifi, M., Fakoorian, S.A., Simon, D.: Robust ground reaction force estimation and control of lower-limb prostheses: theory and simulation. IEEE Trans. Syst. Man Cybern. Syst. 50(8), 3024 (2018) Su, C.Y., Leung, T.P., Stepanenko, Y.: Real-time implementation of regressor-based sliding mode control algorithm for robotic manipulators. IEEE Trans. Ind. Electron. 40(1), 71–79 (1993) Preventative medicine focuses on preventing illnesses or conditions before they can develop. The goal is to avoid disease through screenings, health education, immunizations, and lifestyle changes. Preventative medicine promotes lifestyle changes such as quitting smoking, losing weight, and having a healthy and balanced diet. Preventative medicine is important given the worldwide rise in chronic conditions. Visit Types consensus）,它是构建具有容错性（fault-tolerant）的分布式系统的基础。 在一个具有一致性的性质的集群里面，同一时刻所有的结点对存储在其中的某个值都有相同的结果，即对其共享的存储保持一致。集群具有自动恢复的性质，当少数结点失效的时候不影响集群的正常工作，当大多数集群中的结点失效的时候，集群则会停止服务（不会返回一个错误的结果）。

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Raft算法将时间分为一个个的任期（term），每一个term的开始都是Leader选举。在成功选举Leader之后，Leader会在整个term内管理整个集群。如果Leader选举失败，该term就会因为没有Leader而结束。

Fight! Defend your raft from the dangers of the ocean and fight your way through perilous destinations. Raft算法则是从多副本状态机的角度提出，用于管理多副本状态机的日志复制。Raft实现了和Paxos相同的功能，它将一致性分解为多个子问题：Leader选举（Leader election）、日志同步（Log replication）、安全性（Safety）、日志压缩（Log compaction）、成员变更（Membership change）等。同时，Raft算法使用了更强的假设来减少了需要考虑的状态，使之变的易于理解和实现。 Navigate! Sail your raft towards new destinations and overcome their challenges, uncover their story and find new items to help you on your journey! Leader只能推进commit index来提交当前term的已经复制到大多数服务器上的日志，旧term日志的提交要等到提交当前term的日志来间接提交（log index 小于 commit index的日志被间接提交）。 Izadbakhsh, A.: FAT-based robust adaptive control of electrically driven robots without velocity measurements. Nonlinear Dyn. 89(1), 289–304 (2017)Sharifi, M., Behzadipour, S., Vossoughi, G.: Nonlinear model reference adaptive impedance control for human-robot interactions. Control. Eng. Pract. 32(8), 9–27 (2014) Resources are tough to come by at sea: Players will have to make sure to catch whatever debris floats by using their trusty hook and when possible, scavenge the reefs beneath the waves and the islands above. Spong, M.W.: On the robust control of robot manipulators. IEEE Trans. Autom. Control 37(11), 1782–1786 (1992) Follower将其当前term加一然后转换为Candidate。它首先给自己投票并且给集群中的其他服务器发送 RequestVote RPC （RPC细节参见八、Raft算法总结）。结果有以下三种情况： S5尚未将日志推送到Followers变离线了，进而触发了一次新的选主，而之前离线的S1经过重新上线后被选中变成Leader，此时系统term为4，此时S1会将自己的日志同步到Followers，按照上图就是将日志（2， 2）同步到了S3，而此时由于该日志已经被同步到了多数节点（S1, S2, S3），因此，此时日志（2，2）可以被commit了（即更新到状态机）；

Raft采用一种很简单的方法：每个Candidate的election timeout从150ms-300ms之间随机取，那么第一个超时的Candidate就可以发起新一轮的leader election，带着最大的term_id给其它所有server发送RequestVoteRPC消息，从而自己成为leader，然后给他们发送心跳消息以告诉他们自己是主。 The player also needs to manage basic needs like hunger and thirst by catching or growing food and purifying water to drink. When growing food, however, the player must protect the food from seagulls. One can do so by killing or driving away the seagull. During the game, the raft may pass by islands that the player can explore to get special items and resources. The player can also dive in coastal regions and collect special items. [12] [3] [8] [9] [10] [11] Synopsis [ edit ] Chen, Y.F., Huang, A.C.: Controller design for a class of underactuated mechanical systems. IET Control Theory Appl. 6(1), 103–110 (2012) Al-Shuka, H.F., Corves, B., Zhu, W.H.: Function approximation technique-based adaptive virtual decomposition control for a serial-chain manipulator. Robotica 32(3), 375–399 (2014) Narendra, K.S., Balakrishnan, J.: Improving transient response of adaptive control systems using multiple models and switching. IEEE Trans. Autom. Control 39(9), 1861–1866 (1994)

Leader和Followers的日志保持一致，因此 AppendEntries 一致性检查通常不会失败。然而，Leader崩溃可能会导致日志不一致：旧的Leader可能没有完全复制完日志中的所有条目。 Leader和Followers上日志不一致 Slotine, J.J.E., Li, W.: On the adaptive control of robot manipulators. Int. J. Robot. Res. 6(3), 49–59 (1987) Izadbakhsh, A., Khorashadizadeh, S., Ghandali, S.: Robust adaptive impedance control of robot manipulators using szász-mirakyan operator as universal approximator. ISA Trans. 106, 1–11 (2020) We deliver primary care health services to you and your family with respect, concern, and care. As family medicine providers, our goal is to develop helpful relationships and to ensure your family gets the highest quality treatment to achieve your optimum health and well-being. Meeting your families’ physical and emotional needs through preventative care and comprehensive treatment is our top priority. a b c "What's next for oceanic survival game Raft?". Polygon. 26 June 2018 . Retrieved 8 July 2018.