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chore: fix typo (#4246)

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This commit is contained in:
Kevin Wan
2024-07-14 10:52:47 +08:00
committed by GitHub
parent 775b105ab2
commit 9f8455ddb3
4 changed files with 32 additions and 23 deletions
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31
zrpc/internal/balancer/p2c/p2c.go
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@@ -22,13 +22,20 @@ const (
// Name is the name of p2c balancer.
Name = "p2c_ewma"
decayTime = int64(time.Second * 10) // default value from finagle
forcePick = int64(time.Second) // If a node is not selected for a period of time, it is forcibly selected.
initSuccess = 1000 // Initial success count
throttleSuccess = initSuccess / 2 // Success count to trigger throttling
penalty = int64(math.MaxInt32) // Penalty value for load calculation
pickTimes = 3 // Number of pick attempts
logInterval = time.Minute // Log interval for statistics
// default value from finagle
decayTime = int64(time.Second * 10)
// if a node is not selected for a period of time, it is forcibly selected.
forcePick = int64(time.Second)
// initial success count
initSuccess = 1000
// success count to trigger throttling
throttleSuccess = initSuccess / 2
// penalty value for load calculation
penalty = int64(math.MaxInt32)
// number of pick attempts
pickTimes = 3
// log interval for statistics
logInterval = time.Minute
)
var emptyPickResult balancer.PickResult
@@ -45,7 +52,7 @@ func (b *p2cPickerBuilder) Build(info base.PickerBuildInfo) balancer.Picker {
return base.NewErrPicker(balancer.ErrNoSubConnAvailable)
}
var conns []*subConn
conns := make([]*subConn, 0, len(readySCs))
for conn, connInfo := range readySCs {
conns = append(conns, &subConn{
addr: connInfo.Address,
@@ -122,8 +129,9 @@ func (p *p2cPicker) buildDoneFunc(c *subConn) func(info balancer.DoneInfo) {
td = 0
}
// As the td/decayTime value increases, indicating an increase in delay, the value of w (y axis) will decrease, inversely proportional.
// The function curve of y = x^(-x) is as follows.
// As the td/decayTime value increases, indicating an increase in delay,
// the value of w (y-axis) will decrease, inversely proportional.
// The function curve of y = x^(-x) is as follows:
// https://github.com/zeromicro/zero-doc/blob/main/doc/images/y_e_x.png?raw=true
w := math.Exp(float64(-td) / float64(decayTime))
lag := int64(now) - start
@@ -191,7 +199,8 @@ type subConn struct {
// The request latency measured by the weighted moving average algorithm.
lag uint64
// The value represents the number of requests that are either pending or just starting at the current node, and it is obtained through atomic addition.
// The value represents the number of requests that are either pending or just
// starting at the current node, and it is obtained through atomic addition.
inflight int64
success uint64
requests int64