eviction

Documentation

Index

• Constants
• Variables
• type EvictionConfiguration
  • func NewEvictionConfiguration() *EvictionConfiguration
  • func (c *EvictionConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)
• type EvictionPluginsConfiguration
  • func NewEvictionPluginsConfiguration() *EvictionPluginsConfiguration
  • func (c *EvictionPluginsConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)
• type MemoryPressureEvictionPluginConfiguration
  • func NewMemoryPressureEvictionPluginConfiguration() *MemoryPressureEvictionPluginConfiguration
  • func (c *MemoryPressureEvictionPluginConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)
• type ReclaimedResourcesEvictionPluginConfiguration
  • func NewReclaimedResourcesEvictionPluginConfiguration() *ReclaimedResourcesEvictionPluginConfiguration
  • func (c *ReclaimedResourcesEvictionPluginConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)

Constants

const (
	FakeMetricQoSLevel = "qos.pod"
	FakeMetricPriority = "priority.pod"
)

Fake metrics are not fetched from meta-server

const (
	// DefaultEnableNumaLevelDetection is the default value of whether enable numa-level detection
	DefaultEnableNumaLevelDetection = true
	// DefaultEnableSystemLevelDetection is the default value of whether enable system-level detection
	DefaultEnableSystemLevelDetection = true
	// DefaultNumaFreeBelowWatermarkTimesThreshold is the default threshold for the number of times
	// that NUMA's free memory falls below the watermark
	DefaultNumaFreeBelowWatermarkTimesThreshold = 4
	// DefaultSystemKswapdRateThreshold is the default threshold for the rate of kswapd reclaiming rate
	DefaultSystemKswapdRateThreshold = 2000
	// DefaultSystemKswapdRateExceedTimesThreshold is the default threshold for the number of times
	// that the kswapd reclaiming rate exceeds the threshold
	DefaultSystemKswapdRateExceedTimesThreshold = 4
	// DefaultGracePeriod is the default value of grace period
	DefaultGracePeriod int64 = -1
	// DefaultEnableRssOveruseDetection is the default value of whether enable pod-level rss overuse detection
	DefaultEnableRssOveruseDetection = false
	// DefaultRssOveruseRateThreshold is the default threshold for the rate of rss
	DefaultRssOveruseRateThreshold = 1.05
)

Variables

var (
	// FakeEvictionRankingMetrics is fake metrics to rank pods
	FakeEvictionRankingMetrics = []string{FakeMetricQoSLevel, FakeMetricPriority}
	// DefaultNumaEvictionRankingMetrics is the default metrics used to rank pods for eviction at the NUMA level
	DefaultNumaEvictionRankingMetrics = append(FakeEvictionRankingMetrics, consts.MetricsMemTotalPerNumaContainer)
	// DefaultSystemEvictionRankingMetrics is the default metrics used to rank pods for eviction at the system level
	DefaultSystemEvictionRankingMetrics = append(FakeEvictionRankingMetrics, consts.MetricMemUsageContainer)
)

Types

type EvictionConfiguration

type EvictionConfiguration struct {
	*EvictionPluginsConfiguration
}

func NewEvictionConfiguration

func NewEvictionConfiguration() *EvictionConfiguration

func (*EvictionConfiguration) ApplyConfiguration

func (c *EvictionConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)

type EvictionPluginsConfiguration

type EvictionPluginsConfiguration struct {
	*MemoryPressureEvictionPluginConfiguration
	*ReclaimedResourcesEvictionPluginConfiguration
}

func NewEvictionPluginsConfiguration

func NewEvictionPluginsConfiguration() *EvictionPluginsConfiguration

func (*EvictionPluginsConfiguration) ApplyConfiguration

func (c *EvictionPluginsConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)

type MemoryPressureEvictionPluginConfiguration

type MemoryPressureEvictionPluginConfiguration struct {
	EnableNumaLevelDetection             bool
	EnableSystemLevelDetection           bool
	NumaFreeBelowWatermarkTimesThreshold int
	SystemKswapdRateThreshold            int
	SystemKswapdRateExceedTimesThreshold int
	NumaEvictionRankingMetrics           []string
	SystemEvictionRankingMetrics         []string
	GracePeriod                          int64

	EnableRssOveruseDetection bool
	RssOveruseRateThreshold   float64
}

func NewMemoryPressureEvictionPluginConfiguration

func NewMemoryPressureEvictionPluginConfiguration() *MemoryPressureEvictionPluginConfiguration

func (*MemoryPressureEvictionPluginConfiguration) ApplyConfiguration

func (c *MemoryPressureEvictionPluginConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)

ApplyConfiguration applies dynamic.DynamicConfigCRD to MemoryPressureEvictionPluginConfiguration

type ReclaimedResourcesEvictionPluginConfiguration

type ReclaimedResourcesEvictionPluginConfiguration struct {
	EvictionThreshold native.ResourceThreshold
}

func NewReclaimedResourcesEvictionPluginConfiguration

func NewReclaimedResourcesEvictionPluginConfiguration() *ReclaimedResourcesEvictionPluginConfiguration

func (*ReclaimedResourcesEvictionPluginConfiguration) ApplyConfiguration

func (c *ReclaimedResourcesEvictionPluginConfiguration) ApplyConfiguration(conf *crd.DynamicConfigCRD)