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Only use boost workers for leveldb shadow queues #15696

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merged 6 commits into from
May 2, 2021
Merged

Only use boost workers for leveldb shadow queues #15696

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5733a8f
Only use boost workers for leveldb shadow queues
zeripath May 1, 2021
7713744
create a zero boost so that if there are no workers in a pool - boost…
zeripath May 1, 2021
45ed06c
oops
zeripath May 1, 2021
b1f6a0c
actually set timeout appropriately on boosted workers
zeripath May 1, 2021
685ff1d
Merge branch 'master' into only-use-temporary-workers-for-persistable…
techknowlogick May 1, 2021
a6682bd
Merge branch 'master' into only-use-temporary-workers-for-persistable…
zeripath May 2, 2021
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6 changes: 3 additions & 3 deletions modules/queue/queue_disk_channel.go
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Original file line number Diff line number Diff line change
Expand Up @@ -75,10 +75,10 @@ func NewPersistableChannelQueue(handle HandlerFunc, cfg, exemplar interface{}) (
BatchLength: config.BatchLength,
BlockTimeout: 1 * time.Second,
BoostTimeout: 5 * time.Minute,
BoostWorkers: 5,
MaxWorkers: 6,
BoostWorkers: 1,
MaxWorkers: 5,
},
Workers: 1,
Workers: 0,
Name: config.Name + "-level",
},
DataDir: config.DataDir,
Expand Down
10 changes: 5 additions & 5 deletions modules/queue/unique_queue_disk_channel.go
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Original file line number Diff line number Diff line change
Expand Up @@ -73,12 +73,12 @@ func NewPersistableChannelUniqueQueue(handle HandlerFunc, cfg, exemplar interfac
WorkerPoolConfiguration: WorkerPoolConfiguration{
QueueLength: config.QueueLength,
BatchLength: config.BatchLength,
BlockTimeout: 0,
BoostTimeout: 0,
BoostWorkers: 0,
MaxWorkers: 1,
BlockTimeout: 1 * time.Second,
BoostTimeout: 5 * time.Minute,
BoostWorkers: 1,
MaxWorkers: 5,
},
Workers: 1,
Workers: 0,
Name: config.Name + "-level",
},
DataDir: config.DataDir,
Expand Down
42 changes: 40 additions & 2 deletions modules/queue/workerpool.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,14 +70,52 @@ func (p *WorkerPool) Push(data Data) {
atomic.AddInt64(&p.numInQueue, 1)
p.lock.Lock()
if p.blockTimeout > 0 && p.boostTimeout > 0 && (p.numberOfWorkers <= p.maxNumberOfWorkers || p.maxNumberOfWorkers < 0) {
p.lock.Unlock()
if p.numberOfWorkers == 0 {
p.zeroBoost()
} else {
p.lock.Unlock()
}
p.pushBoost(data)
} else {
p.lock.Unlock()
p.dataChan <- data
}
}

func (p *WorkerPool) zeroBoost() {
ctx, cancel := context.WithCancel(p.baseCtx)
mq := GetManager().GetManagedQueue(p.qid)
boost := p.boostWorkers
if (boost+p.numberOfWorkers) > p.maxNumberOfWorkers && p.maxNumberOfWorkers >= 0 {
boost = p.maxNumberOfWorkers - p.numberOfWorkers
}
if mq != nil {
log.Warn("WorkerPool: %d (for %s) has zero workers - adding %d temporary workers for %s", p.qid, mq.Name, boost, p.boostTimeout)

start := time.Now()
pid := mq.RegisterWorkers(boost, start, true, start.Add(p.boostTimeout), cancel, false)
go func() {
select {
case <-ctx.Done():
case <-time.After(p.boostTimeout):
}
mq.RemoveWorkers(pid)
cancel()
}()
} else {
log.Warn("WorkerPool: %d has zero workers - adding %d temporary workers for %s", p.qid, p.boostWorkers, p.boostTimeout)
go func() {
select {
case <-ctx.Done():
case <-time.After(p.boostTimeout):
}
cancel()
}()
}
p.lock.Unlock()
p.addWorkers(ctx, boost)
}

func (p *WorkerPool) pushBoost(data Data) {
select {
case p.dataChan <- data:
Expand Down Expand Up @@ -112,7 +150,7 @@ func (p *WorkerPool) pushBoost(data Data) {
log.Warn("WorkerPool: %d (for %s) Channel blocked for %v - adding %d temporary workers for %s, block timeout now %v", p.qid, mq.Name, ourTimeout, boost, p.boostTimeout, p.blockTimeout)

start := time.Now()
pid := mq.RegisterWorkers(boost, start, false, start, cancel, false)
pid := mq.RegisterWorkers(boost, start, true, start.Add(p.boostTimeout), cancel, false)
go func() {
<-ctx.Done()
mq.RemoveWorkers(pid)
Expand Down