apply feature by default. With this feature enabled, the Raft leader can apply logs after quorum peers have persisted the logs, without waiting for the leader itself to persist the log, reducing the impact write hotspots might break placement policy constraints #7848 @lhy1024 • Fix the issue that down peers might not recover when using Placement Rules #7808 @rleungx • Fix the issue that a large number which can avoid triggering this problem. • Issue-43079: TiDB Lightning fails to refresh the Region Peers information during retry for NotLeader errors. • Issue-43291: TiDB Lightning does not retry in cases

which can avoid triggering this problem. • Issue-43079: TiDB Lightning fails to refresh the Region Peers information during retry for NotLeader errors. • Issue-43291: TiDB Lightning does not retry in cases of Regions with the learner peer. The sources of learner peers can be various, for example, the learner peers in TiFlash, and the learner peers included in the configured Placement Rules. • miss-peer-region-count: pending-peer-region-count: The number of Regions with outdated Raft logs. It is normal that a few pending peers are generated in the scheduling process. However, it is not normal if this value is large for a period

which can avoid triggering this problem. • Issue-43079: TiDB Lightning fails to refresh the Region Peers information during retry for NotLeader errors. • Issue-43291: TiDB Lightning does not retry in cases of Regions with the learner peer. The sources of learner peers can be various, for example, the learner peers in TiFlash, and the learner peers included in the configured Placement Rules. • miss-peer-region-count: pending-peer-region-count: The number of Regions with outdated Raft logs. It is normal that a few pending peers are generated in the scheduling process. However, it is not normal if this value is large for a period

which can avoid triggering this problem. • Issue-43079: TiDB Lightning fails to refresh the Region Peers information during retry for NotLeader errors. • Issue-43291: TiDB Lightning does not retry in cases of Regions with the learner peer. The sources of learner peers can be various, for example, the learner peers in TiFlash, and the learner peers included in the configured Placement Rules. • miss-peer-region-count: pending-peer-region-count: The number of Regions with outdated Raft logs. It is normal that a few pending peers are generated in the scheduling process. However, it is not normal if this value is large for a period

which can avoid triggering this problem. • Issue-43079: TiDB Lightning fails to refresh the Region Peers information during retry for NotLeader errors. • Issue-43291: TiDB Lightning does not retry in cases of Regions with the learner peer. The sources of learner peers can be various, for example, the learner peers in TiFlash, and the learner peers included in the configured Placement Rules. • miss-peer-region-count: pending-peer-region-count: The number of Regions with outdated Raft logs. It is normal that a few pending peers are generated in the scheduling process. However, it is not normal if this value is large for a period

Closure* done); void remove_peer(const PeerId& peer, Closure* done); void change_peers(const Configuration& new_peers, Closure* done); StateMachine void on_apply(::raft::Iterator& iter); void on_s

rule. At the start, that was easy. With one client library for each service, these libraries were peers and blind to one another. There was little hierarchy to work out. They all just needed to be added

technology in areas he or she does not directly control. To do so, the CIO must build relationships with peers; understand the outcomes they desire; demonstrate how his or her ideas can help them achieve their

specific task or domain. Decentralized (agents handing off to agents) Multiple agents operate as peers, handing off tasks to one another based on their specializations. Multi-agent systems can be modeled

crossZone , specifiedZone ) (hosts chooseTargetMetaHosts string uint64 string int bool string [] , peers []proto.Peer, err ) string error metanode是否能够创建copyset，由这个函数判断。有这些判断条件： 1、metaNode的存活状态 2、metaNode的内存使用情况