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client/signal: Revert "add signal 'snapshot', rename existing signal 'wakeup' to 'replication'"

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This was merged to master prematurely as the job components are not decoupled well enough
for these signals to be useful yet.

This reverts commit 2c8c2cfa14.

closes #452
This commit is contained in:
InsanePrawn
2021-03-23 18:01:12 +01:00
committed by Christian Schwarz
parent ee2336a24b
commit b2c6e51a43
15 changed files with 46 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files
daemon/job/active.go
+10 -10
View File
@@ -14,8 +14,8 @@ import (
"github.com/zrepl/zrepl/util/envconst"
"github.com/zrepl/zrepl/config"
"github.com/zrepl/zrepl/daemon/job/doreplication"
"github.com/zrepl/zrepl/daemon/job/reset"
"github.com/zrepl/zrepl/daemon/job/wakeup"
"github.com/zrepl/zrepl/daemon/pruner"
"github.com/zrepl/zrepl/daemon/snapper"
"github.com/zrepl/zrepl/endpoint"
@@ -89,7 +89,7 @@ type activeMode interface {
SenderReceiver() (logic.Sender, logic.Receiver)
Type() Type
PlannerPolicy() logic.PlannerPolicy
RunPeriodic(ctx context.Context, replicationCommon chan<- struct{})
RunPeriodic(ctx context.Context, wakeUpCommon chan<- struct{})
SnapperReport() *snapper.Report
ResetConnectBackoff()
}
@@ -131,8 +131,8 @@ func (m *modePush) Type() Type { return TypePush }
func (m *modePush) PlannerPolicy() logic.PlannerPolicy { return *m.plannerPolicy }
func (m *modePush) RunPeriodic(ctx context.Context, replicationCommon chan<- struct{}) {
m.snapper.Run(ctx, replicationCommon)
func (m *modePush) RunPeriodic(ctx context.Context, wakeUpCommon chan<- struct{}) {
m.snapper.Run(ctx, wakeUpCommon)
}
func (m *modePush) SnapperReport() *snapper.Report {
@@ -214,10 +214,10 @@ func (*modePull) Type() Type { return TypePull }
func (m *modePull) PlannerPolicy() logic.PlannerPolicy { return *m.plannerPolicy }
func (m *modePull) RunPeriodic(ctx context.Context, replicationCommon chan<- struct{}) {
func (m *modePull) RunPeriodic(ctx context.Context, wakeUpCommon chan<- struct{}) {
if m.interval.Manual {
GetLogger(ctx).Info("manual pull configured, periodic pull disabled")
// "waiting for wakeup replications" is printed in common ActiveSide.do
// "waiting for wakeups" is printed in common ActiveSide.do
return
}
t := time.NewTicker(m.interval.Interval)
@@ -226,12 +226,12 @@ func (m *modePull) RunPeriodic(ctx context.Context, replicationCommon chan<- str
select {
case <-t.C:
select {
case replicationCommon <- struct{}{}:
case wakeUpCommon <- struct{}{}:
default:
GetLogger(ctx).
WithField("pull_interval", m.interval).
Warn("pull job took longer than pull interval")
replicationCommon <- struct{}{} // block anyways, to queue up the wakeup replication
wakeUpCommon <- struct{}{} // block anyways, to queue up the wakeup
}
case <-ctx.Done():
return
@@ -435,13 +435,13 @@ func (j *ActiveSide) Run(ctx context.Context) {
invocationCount := 0
outer:
for {
log.Info("wait for replications")
log.Info("wait for wakeups")
select {
case <-ctx.Done():
log.WithError(ctx.Err()).Info("context")
break outer
case <-doreplication.Wait(ctx):
case <-wakeup.Wait(ctx):
j.mode.ResetConnectBackoff()
case <-periodicDone:
}
daemon/job/doreplication/doreplication.go
-35
View File
@@ -1,35 +0,0 @@
package doreplication
import (
"context"
"errors"
)
type contextKey int
const contextKeyReplication contextKey = iota
func Wait(ctx context.Context) <-chan struct{} {
wc, ok := ctx.Value(contextKeyReplication).(chan struct{})
if !ok {
wc = make(chan struct{})
}
return wc
}
type Func func() error
var AlreadyReplicating = errors.New("already replicating")
func Context(ctx context.Context) (context.Context, Func) {
wc := make(chan struct{})
wuf := func() error {
select {
case wc <- struct{}{}:
return nil
default:
return AlreadyReplicating
}
}
return context.WithValue(ctx, contextKeyReplication, wc), wuf
}
daemon/job/snapjob.go
+3 -3
View File
@@ -9,12 +9,12 @@ import (
"github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
"github.com/zrepl/zrepl/daemon/job/doreplication"
"github.com/zrepl/zrepl/daemon/logging/trace"
"github.com/zrepl/zrepl/util/nodefault"
"github.com/zrepl/zrepl/config"
"github.com/zrepl/zrepl/daemon/filters"
"github.com/zrepl/zrepl/daemon/job/wakeup"
"github.com/zrepl/zrepl/daemon/pruner"
"github.com/zrepl/zrepl/daemon/snapper"
"github.com/zrepl/zrepl/endpoint"
@@ -112,13 +112,13 @@ func (j *SnapJob) Run(ctx context.Context) {
invocationCount := 0
outer:
for {
log.Info("wait for replications")
log.Info("wait for wakeups")
select {
case <-ctx.Done():
log.WithError(ctx.Err()).Info("context")
break outer
case <-doreplication.Wait(ctx):
case <-wakeup.Wait(ctx):
case <-periodicDone:
}
invocationCount++
daemon/job/dosnapshot/dosnapshot.go → daemon/job/wakeup/wakeup.go
+6 -6
View File
@@ -1,4 +1,4 @@
package dosnapshot
package wakeup
import (
"context"
@@ -7,10 +7,10 @@ import (
type contextKey int
const contextKeyDosnapshot contextKey = iota
const contextKeyWakeup contextKey = iota
func Wait(ctx context.Context) <-chan struct{} {
wc, ok := ctx.Value(contextKeyDosnapshot).(chan struct{})
wc, ok := ctx.Value(contextKeyWakeup).(chan struct{})
if !ok {
wc = make(chan struct{})
}
@@ -19,7 +19,7 @@ func Wait(ctx context.Context) <-chan struct{} {
type Func func() error
var AlreadyDosnapshot = errors.New("already snapshotting")
var AlreadyWokenUp = errors.New("already woken up")
func Context(ctx context.Context) (context.Context, Func) {
wc := make(chan struct{})
@@ -28,8 +28,8 @@ func Context(ctx context.Context) (context.Context, Func) {
case wc <- struct{}{}:
return nil
default:
return AlreadyDosnapshot
return AlreadyWokenUp
}
}
return context.WithValue(ctx, contextKeyDosnapshot, wc), wuf
return context.WithValue(ctx, contextKeyWakeup, wc), wuf
}