tasks/service/history/visibilityQueueFactory.go

// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
//
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package history

import (
	"go.uber.org/fx"

	"go.temporal.io/server/common/log"
	"go.temporal.io/server/common/log/tag"
	"go.temporal.io/server/common/metrics"
	"go.temporal.io/server/common/persistence/visibility/manager"
	"go.temporal.io/server/service/history/queues"
	"go.temporal.io/server/service/history/shard"
	"go.temporal.io/server/service/history/tasks"
	"go.temporal.io/server/service/history/workflow"
)

const (
	visibilityQueuePersistenceMaxRPSRatio = 0.15
)

type (
	visibilityQueueFactoryParams struct {
		fx.In

		QueueFactoryBaseParams

		VisibilityMgr manager.VisibilityManager
	}

	visibilityQueueFactory struct {
		visibilityQueueFactoryParams
		QueueFactoryBase
	}
)

func NewVisibilityQueueFactory(
	params visibilityQueueFactoryParams,
) QueueFactory {
	var hostScheduler queues.Scheduler
	if params.Config.VisibilityProcessorEnablePriorityTaskScheduler() {
		hostScheduler = queues.NewNamespacePriorityScheduler(
			params.ClusterMetadata.GetCurrentClusterName(),
			queues.NamespacePrioritySchedulerOptions{
				WorkerCount:                 params.Config.VisibilityProcessorSchedulerWorkerCount,
				ActiveNamespaceWeights:      params.Config.VisibilityProcessorSchedulerActiveRoundRobinWeights,
				StandbyNamespaceWeights:     params.Config.VisibilityProcessorSchedulerStandbyRoundRobinWeights,
				EnableRateLimiter:           params.Config.TaskSchedulerEnableRateLimiter,
				MaxDispatchThrottleDuration: HostSchedulerMaxDispatchThrottleDuration,
			},
			params.NamespaceRegistry,
			params.SchedulerRateLimiter,
			params.TimeSource,
			params.MetricsHandler.WithTags(metrics.OperationTag(metrics.OperationVisibilityQueueProcessorScope)),
			params.Logger,
		)
	}
	return &visibilityQueueFactory{
		visibilityQueueFactoryParams: params,
		QueueFactoryBase: QueueFactoryBase{
			HostScheduler:        hostScheduler,
			HostPriorityAssigner: queues.NewPriorityAssigner(),
			HostRateLimiter: NewQueueHostRateLimiter(
				params.Config.VisibilityProcessorMaxPollHostRPS,
				params.Config.PersistenceMaxQPS,
				visibilityQueuePersistenceMaxRPSRatio,
			),
			HostReaderRateLimiter: queues.NewReaderPriorityRateLimiter(
				NewHostRateLimiterRateFn(
					params.Config.VisibilityProcessorMaxPollHostRPS,
					params.Config.PersistenceMaxQPS,
					visibilityQueuePersistenceMaxRPSRatio,
				),
				params.Config.QueueMaxReaderCount(),
			),
		},
	}
}

func (f *visibilityQueueFactory) CreateQueue(
	shard shard.Context,
	workflowCache workflow.Cache,
) queues.Queue {
	if f.HostScheduler != nil && f.Config.VisibilityProcessorEnableMultiCursor() {
		logger := log.With(shard.GetLogger(), tag.ComponentVisibilityQueue)

		executor := newVisibilityQueueTaskExecutor(
			shard,
			workflowCache,
			f.VisibilityMgr,
			logger,
			f.MetricsHandler,
			f.Config.VisibilityProcessorEnsureCloseBeforeDelete,
			f.Config.VisibilityProcessorEnableCloseWorkflowCleanup,
		)

		return queues.NewImmediateQueue(
			shard,
			tasks.CategoryVisibility,
			f.HostScheduler,
			f.HostPriorityAssigner,
			executor,
			&queues.Options{
				ReaderOptions: queues.ReaderOptions{
					BatchSize:            f.Config.VisibilityTaskBatchSize,
					MaxPendingTasksCount: f.Config.QueuePendingTaskMaxCount,
					PollBackoffInterval:  f.Config.VisibilityProcessorPollBackoffInterval,
				},
				MonitorOptions: queues.MonitorOptions{
					PendingTasksCriticalCount:   f.Config.QueuePendingTaskCriticalCount,
					ReaderStuckCriticalAttempts: f.Config.QueueReaderStuckCriticalAttempts,
					SliceCountCriticalThreshold: f.Config.QueueCriticalSlicesCount,
				},
				MaxPollRPS:                          f.Config.VisibilityProcessorMaxPollRPS,
				MaxPollInterval:                     f.Config.VisibilityProcessorMaxPollInterval,
				MaxPollIntervalJitterCoefficient:    f.Config.VisibilityProcessorMaxPollIntervalJitterCoefficient,
				CheckpointInterval:                  f.Config.VisibilityProcessorUpdateAckInterval,
				CheckpointIntervalJitterCoefficient: f.Config.VisibilityProcessorUpdateAckIntervalJitterCoefficient,
				MaxReaderCount:                      f.Config.QueueMaxReaderCount,
				TaskMaxRetryCount:                   f.Config.VisibilityTaskMaxRetryCount,
			},
			f.HostReaderRateLimiter,
			logger,
			f.MetricsHandler.WithTags(metrics.OperationTag(metrics.OperationVisibilityQueueProcessorScope)),
		)
	}

	return newVisibilityQueueProcessor(
		shard,
		workflowCache,
		f.HostScheduler,
		f.HostPriorityAssigner,
		f.VisibilityMgr,
		f.MetricsHandler,
		f.HostRateLimiter,
		f.SchedulerRateLimiter,
	)
}