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Golang ReplicaState.Stats方法代码示例

本文整理汇总了Golang中github.com/cockroachdb/cockroach/storage/storagebase.ReplicaState.Stats方法的典型用法代码示例。如果您正苦于以下问题:Golang ReplicaState.Stats方法的具体用法?Golang ReplicaState.Stats怎么用?Golang ReplicaState.Stats使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/cockroachdb/cockroach/storage/storagebase.ReplicaState的用法示例。


在下文中一共展示了ReplicaState.Stats方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: writeInitialState

// writeInitialState bootstraps a new Raft group (i.e. it is called when we
// bootstrap a Range, or when setting up the right hand side of a split).
// Its main task is to persist a consistent Raft (and associated Replica) state
// which does not start from zero but presupposes a few entries already having
// applied.
// The supplied MVCCStats are used for the Stats field after adjusting for
// persisting the state itself, and the updated stats are returned.
func writeInitialState(
	eng engine.ReadWriter, ms enginepb.MVCCStats, desc roachpb.RangeDescriptor,
) (enginepb.MVCCStats, error) {
	rangeID := desc.RangeID
	var s storagebase.ReplicaState

	s.TruncatedState = &roachpb.RaftTruncatedState{
		Term:  raftInitialLogTerm,
		Index: raftInitialLogIndex,
	}
	s.RaftAppliedIndex = s.TruncatedState.Index
	s.Desc = &roachpb.RangeDescriptor{
		RangeID: rangeID,
	}
	s.Stats = ms

	newMS, err := saveState(eng, s)
	if err != nil {
		return enginepb.MVCCStats{}, err
	}

	if err := updateHardState(eng, s); err != nil {
		return enginepb.MVCCStats{}, err
	}

	if err := setLastIndex(eng, rangeID, s.TruncatedState.Index); err != nil {
		return enginepb.MVCCStats{}, err
	}

	return newMS, nil
}
开发者ID:CubeLite,项目名称:cockroach,代码行数:38,代码来源:replica_state.go

示例2: writeInitialState

// writeInitialState bootstraps a new Raft group (i.e. it is called when we
// bootstrap a Range, or when setting up the right hand side of a split).
// Its main task is to persist a consistent Raft (and associated Replica) state
// which does not start from zero but presupposes a few entries already having
// applied.
// The supplied MVCCStats are used for the Stats field after adjusting for
// persisting the state itself, and the updated stats are returned.
func writeInitialState(
	ctx context.Context, eng engine.ReadWriter, ms enginepb.MVCCStats, desc roachpb.RangeDescriptor,
) (enginepb.MVCCStats, error) {
	var s storagebase.ReplicaState

	s.TruncatedState = &roachpb.RaftTruncatedState{
		Term:  raftInitialLogTerm,
		Index: raftInitialLogIndex,
	}
	s.RaftAppliedIndex = s.TruncatedState.Index
	s.Desc = &roachpb.RangeDescriptor{
		RangeID: desc.RangeID,
	}
	s.Stats = ms

	newMS, err := saveState(ctx, eng, s)
	if err != nil {
		return enginepb.MVCCStats{}, err
	}

	oldHS, err := loadHardState(ctx, eng, desc.RangeID)
	if err != nil {
		return enginepb.MVCCStats{}, err
	}

	if err := synthesizeHardState(ctx, eng, s, oldHS); err != nil {
		return enginepb.MVCCStats{}, err
	}

	if err := setLastIndex(ctx, eng, desc.RangeID, s.TruncatedState.Index); err != nil {
		return enginepb.MVCCStats{}, err
	}

	return newMS, nil
}
开发者ID:yangxuanjia,项目名称:cockroach,代码行数:42,代码来源:replica_state.go

示例3: writeInitialState

// writeInitialState bootstraps a new Raft group (i.e. it is called when we
// bootstrap a Range, or when setting up the right hand side of a split).
// Its main task is to persist a consistent Raft (and associated Replica) state
// which does not start from zero but presupposes a few entries already having
// applied.
// The supplied MVCCStats are used for the Stats field after adjusting for
// persisting the state itself, and the updated stats are returned.
func writeInitialState(
	eng engine.ReadWriter, ms enginepb.MVCCStats, desc roachpb.RangeDescriptor,
) (enginepb.MVCCStats, error) {
	rangeID := desc.RangeID
	var s storagebase.ReplicaState

	s.TruncatedState = &roachpb.RaftTruncatedState{
		Term:  raftInitialLogTerm,
		Index: raftInitialLogIndex,
	}
	s.RaftAppliedIndex = s.TruncatedState.Index
	s.Desc = &roachpb.RangeDescriptor{
		RangeID: rangeID,
	}
	s.Stats = ms

	newMS, err := saveState(eng, s)
	if err != nil {
		return enginepb.MVCCStats{}, err
	}

	// Load a potentially existing HardState as we may need to preserve
	// information about cast votes. For example, during a Split for which
	// another node's new right-hand side has contacted us before our left-hand
	// side called in here to create the group.
	oldHS, err := loadHardState(eng, rangeID)
	if err != nil {
		return enginepb.MVCCStats{}, err
	}

	newHS := raftpb.HardState{
		Term:   s.TruncatedState.Term,
		Commit: s.TruncatedState.Index,
	}

	if !raft.IsEmptyHardState(oldHS) {
		if oldHS.Commit > newHS.Commit {
			newHS.Commit = oldHS.Commit
		}
		if oldHS.Term > newHS.Term {
			newHS.Term = oldHS.Term
		}
		newHS.Vote = oldHS.Vote
	}

	if err := setHardState(eng, rangeID, newHS); err != nil {
		return enginepb.MVCCStats{}, err
	}

	if err := setLastIndex(eng, rangeID, s.TruncatedState.Index); err != nil {
		return enginepb.MVCCStats{}, err
	}

	return newMS, nil
}
开发者ID:the872,项目名称:cockroach,代码行数:62,代码来源:replica_state.go


注:本文中的github.com/cockroachdb/cockroach/storage/storagebase.ReplicaState.Stats方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。