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question (?) as argument in interactive commands

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This commit is contained in:
Shlomi Noach 2017-01-29 09:25:29 +02:00
parent 5af70265a3
commit 779e9fdd83
1 changed files with 32 additions and 1 deletions
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33
go/logic/server.go
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@ -126,7 +126,7 @@ func (this *Server) applyServerCommand(command string, writer *bufio.Writer) (pr
if len(tokens) > 1 {
arg = strings.TrimSpace(tokens[1])
}
argIsQuestion := (arg == "?")
throttleHint := "# Note: you may only throttle for as long as your binary logs are not purged\n"
if err := this.hooksExecutor.onInteractiveCommand(command); err != nil {
@ -152,6 +152,7 @@ no-throttle # End forced throttling (other throttling m
unpostpone # Bail out a cut-over postpone; proceed to cut-over
panic # panic and quit without cleanup
help # This message
- use '?' (question mark) as argument to get info rather than set. e.g. "max-load=?" will just print out current max-load.
`)
}
case "sup":
@ -160,6 +161,10 @@ help # This message
return ForcePrintStatusAndHintRule, nil
case "chunk-size":
{
if argIsQuestion {
fmt.Fprintf(writer, "%+v\n", atomic.LoadInt64(&this.migrationContext.ChunkSize))
return NoPrintStatusRule, nil
}
if chunkSize, err := strconv.Atoi(arg); err != nil {
return NoPrintStatusRule, err
} else {
@ -169,6 +174,10 @@ help # This message
}
case "max-lag-millis":
{
if argIsQuestion {
fmt.Fprintf(writer, "%+v\n", atomic.LoadInt64(&this.migrationContext.MaxLagMillisecondsThrottleThreshold))
return NoPrintStatusRule, nil
}
if maxLagMillis, err := strconv.Atoi(arg); err != nil {
return NoPrintStatusRule, err
} else {
@ -182,6 +191,10 @@ help # This message
}
case "nice-ratio":
{
if argIsQuestion {
fmt.Fprintf(writer, "%+v\n", this.migrationContext.GetNiceRatio())
return NoPrintStatusRule, nil
}
if niceRatio, err := strconv.ParseFloat(arg, 64); err != nil {
return NoPrintStatusRule, err
} else {
@ -191,6 +204,11 @@ help # This message
}
case "max-load":
{
if argIsQuestion {
maxLoad := this.migrationContext.GetMaxLoad()
fmt.Fprintf(writer, "%s\n", maxLoad.String())
return NoPrintStatusRule, nil
}
if err := this.migrationContext.ReadMaxLoad(arg); err != nil {
return NoPrintStatusRule, err
}
@ -198,6 +216,11 @@ help # This message
}
case "critical-load":
{
if argIsQuestion {
criticalLoad := this.migrationContext.GetCriticalLoad()
fmt.Fprintf(writer, "%s\n", criticalLoad.String())
return NoPrintStatusRule, nil
}
if err := this.migrationContext.ReadCriticalLoad(arg); err != nil {
return NoPrintStatusRule, err
}
@ -205,12 +228,20 @@ help # This message
}
case "throttle-query":
{
if argIsQuestion {
fmt.Fprintf(writer, "%+v\n", this.migrationContext.GetThrottleQuery())
return NoPrintStatusRule, nil
}
this.migrationContext.SetThrottleQuery(arg)
fmt.Fprintf(writer, throttleHint)
return ForcePrintStatusAndHintRule, nil
}
case "throttle-control-replicas":
{
if argIsQuestion {
fmt.Fprintf(writer, "%s\n", this.migrationContext.GetThrottleControlReplicaKeys().ToCommaDelimitedList())
return NoPrintStatusRule, nil
}
if err := this.migrationContext.ReadThrottleControlReplicaKeys(arg); err != nil {
return NoPrintStatusRule, err
}