scanner

package
v0.14.2 Latest Latest
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Published: Oct 8, 2020 License: MIT Imports: 22 Imported by: 1

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Constants

This section is empty.

Variables

This section is empty.

Functions

func HistoryScannerWorkflow added in v0.9.3

func HistoryScannerWorkflow(
	ctx workflow.Context,
) error

HistoryScannerWorkflow is the workflow that runs the history scanner background daemon

func HistoryScavengerActivity added in v0.9.3

func HistoryScavengerActivity(
	activityCtx context.Context,
) (history.ScavengerHeartbeatDetails, error)

HistoryScavengerActivity is the activity that runs history scavenger

func TaskListScannerWorkflow

func TaskListScannerWorkflow(
	ctx workflow.Context,
) error

TaskListScannerWorkflow is the workflow that runs the task-list scanner background daemon

func TaskListScavengerActivity

func TaskListScavengerActivity(
	activityCtx context.Context,
) error

TaskListScavengerActivity is the activity that runs task list scavenger

Types

type BootstrapParams

type BootstrapParams struct {
	// Config contains the configuration for scanner
	Config Config
	// TallyScope is an instance of tally metrics scope
	TallyScope tally.Scope
}

BootstrapParams contains the set of params needed to bootstrap the scanner sub-system

type Config

type Config struct {
	// PersistenceMaxQPS the max rate of calls to persistence
	PersistenceMaxQPS dynamicconfig.IntPropertyFn
	// Persistence contains the persistence configuration
	Persistence *config.Persistence
	// ClusterMetadata contains the metadata for this cluster
	ClusterMetadata cluster.Metadata
	// TaskListScannerEnabled indicates if taskList scanner should be started as part of scanner
	TaskListScannerEnabled dynamicconfig.BoolPropertyFn
	// HistoryScannerEnabled indicates if history scanner should be started as part of scanner
	HistoryScannerEnabled dynamicconfig.BoolPropertyFn
	// ConcreteExecutionScannerConfig is the config for concrete execution scanner
	ConcreteExecutionScannerConfig *executions.ScannerWorkflowDynamicConfig
	// CurrentExecutionScannerConfig is the config for current execution scanner
	CurrentExecutionScannerConfig *executions.ScannerWorkflowDynamicConfig
}

Config defines the configuration for scanner

type Scanner

type Scanner struct {
	// contains filtered or unexported fields
}

Scanner is the background sub-system that does full scans of database tables to cleanup resources, monitor anamolies and emit stats for analytics

func New

func New(
	resource resource.Resource,
	params *BootstrapParams,
) *Scanner

New returns a new instance of scanner daemon Scanner is the background sub-system that does full scans of database tables in an attempt to cleanup resources, monitor system anamolies and emit stats for analysis and alerting

func (*Scanner) Start

func (s *Scanner) Start() error

Start starts the scanner

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