Package org.apache.flink.kubernetes.operator.autoscaler.state

Class KubernetesAutoScalerStateStore

java.lang.Object

org.apache.flink.kubernetes.operator.autoscaler.state.KubernetesAutoScalerStateStore

All Implemented Interfaces:

AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

public class KubernetesAutoScalerStateStore
extends java.lang.Object
implements AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

An AutoscalerStateStore which persists its state in Kubernetes ConfigMaps.

Field Summary

Fields

Modifier and Type	Field	Description
protected static java.lang.String	COLLECTED_METRICS_KEY
protected static java.lang.String	CONFIG_OVERRIDES_KEY
protected static java.lang.String	DELAYED_SCALE_DOWN
protected static int	MAX_CM_BYTES
protected static java.lang.String	PARALLELISM_OVERRIDES_KEY
protected static java.lang.String	SCALING_HISTORY_KEY
protected static java.lang.String	SCALING_TRACKING_KEY
protected static org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper	YAML_MAPPER

Constructor Summary

Constructors

Constructor	Description
KubernetesAutoScalerStateStore(ConfigMapStore configMapStore)

Method Summary

Modifier and Type	Method	Description
void	clearAll(KubernetesJobAutoScalerContext jobContext)	Removes all data from this context.
void	flush(KubernetesJobAutoScalerContext jobContext)	Flushing is needed because we do not persist data for all store methods until this method is called.
java.util.SortedMap<java.time.Instant,CollectedMetrics>	getCollectedMetrics(KubernetesJobAutoScalerContext jobContext)
ConfigChanges	getConfigChanges(KubernetesJobAutoScalerContext jobContext)
DelayedScaleDown	getDelayedScaleDown(KubernetesJobAutoScalerContext jobContext)
java.util.Map<java.lang.String,java.lang.String>	getParallelismOverrides(KubernetesJobAutoScalerContext jobContext)
java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>>	getScalingHistory(KubernetesJobAutoScalerContext jobContext)
ScalingTracking	getScalingTracking(KubernetesJobAutoScalerContext jobContext)
void	removeCollectedMetrics(KubernetesJobAutoScalerContext jobContext)
void	removeConfigChanges(KubernetesJobAutoScalerContext jobContext)
void	removeParallelismOverrides(KubernetesJobAutoScalerContext jobContext)
void	removeScalingHistory(KubernetesJobAutoScalerContext jobContext)
protected static java.lang.String	serializeEvaluatedMetrics(java.util.SortedMap<java.time.Instant,CollectedMetrics> evaluatedMetrics)
protected static java.lang.String	serializeScalingHistory(java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>> scalingHistory)
protected static java.lang.String	serializeScalingTracking(ScalingTracking scalingTracking)
void	storeCollectedMetrics(KubernetesJobAutoScalerContext jobContext, java.util.SortedMap<java.time.Instant,CollectedMetrics> metrics)
void	storeConfigChanges(KubernetesJobAutoScalerContext jobContext, ConfigChanges overrides)
void	storeDelayedScaleDown(KubernetesJobAutoScalerContext jobContext, DelayedScaleDown delayedScaleDown)
void	storeParallelismOverrides(KubernetesJobAutoScalerContext jobContext, java.util.Map<java.lang.String,java.lang.String> parallelismOverrides)
void	storeScalingHistory(KubernetesJobAutoScalerContext jobContext, java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>> scalingHistory)
void	storeScalingTracking(KubernetesJobAutoScalerContext jobContext, ScalingTracking scalingTrack)
protected void	trimHistoryToMaxCmSize(KubernetesJobAutoScalerContext context)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SCALING_HISTORY_KEY

@VisibleForTesting
protected static final java.lang.String SCALING_HISTORY_KEY

See Also:

Constant Field Values

SCALING_TRACKING_KEY

@VisibleForTesting
protected static final java.lang.String SCALING_TRACKING_KEY

See Also:

Constant Field Values

COLLECTED_METRICS_KEY

@VisibleForTesting
protected static final java.lang.String COLLECTED_METRICS_KEY

See Also:

Constant Field Values

PARALLELISM_OVERRIDES_KEY

@VisibleForTesting
protected static final java.lang.String PARALLELISM_OVERRIDES_KEY

See Also:

Constant Field Values

CONFIG_OVERRIDES_KEY

protected static final java.lang.String CONFIG_OVERRIDES_KEY

See Also:

Constant Field Values

DELAYED_SCALE_DOWN

@VisibleForTesting
protected static final java.lang.String DELAYED_SCALE_DOWN

See Also:

Constant Field Values

MAX_CM_BYTES

@VisibleForTesting
protected static final int MAX_CM_BYTES

See Also:

Constant Field Values

YAML_MAPPER

protected static final org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper YAML_MAPPER

Constructor Detail

KubernetesAutoScalerStateStore

public KubernetesAutoScalerStateStore(ConfigMapStore configMapStore)

Method Detail

storeScalingHistory

public void storeScalingHistory(KubernetesJobAutoScalerContext jobContext,
                                java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>> scalingHistory)

Specified by:

storeScalingHistory in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

storeScalingTracking

public void storeScalingTracking(KubernetesJobAutoScalerContext jobContext,
                                 ScalingTracking scalingTrack)

Specified by:

storeScalingTracking in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

getScalingHistory

@Nonnull
public java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>> getScalingHistory(KubernetesJobAutoScalerContext jobContext)

Specified by:

getScalingHistory in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

getScalingTracking

public ScalingTracking getScalingTracking(KubernetesJobAutoScalerContext jobContext)

Specified by:

getScalingTracking in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

removeScalingHistory

public void removeScalingHistory(KubernetesJobAutoScalerContext jobContext)

Specified by:

removeScalingHistory in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

storeCollectedMetrics

public void storeCollectedMetrics(KubernetesJobAutoScalerContext jobContext,
                                  java.util.SortedMap<java.time.Instant,CollectedMetrics> metrics)

Specified by:

storeCollectedMetrics in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

getCollectedMetrics

@Nonnull
public java.util.SortedMap<java.time.Instant,CollectedMetrics> getCollectedMetrics(KubernetesJobAutoScalerContext jobContext)

Specified by:

getCollectedMetrics in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

removeCollectedMetrics

public void removeCollectedMetrics(KubernetesJobAutoScalerContext jobContext)

Specified by:

removeCollectedMetrics in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

storeParallelismOverrides

public void storeParallelismOverrides(KubernetesJobAutoScalerContext jobContext,
                                      java.util.Map<java.lang.String,java.lang.String> parallelismOverrides)

Specified by:

storeParallelismOverrides in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

getParallelismOverrides

@Nonnull
public java.util.Map<java.lang.String,java.lang.String> getParallelismOverrides(KubernetesJobAutoScalerContext jobContext)

Specified by:

getParallelismOverrides in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

getConfigChanges

@Nonnull
public ConfigChanges getConfigChanges(KubernetesJobAutoScalerContext jobContext)

Specified by:

getConfigChanges in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

storeConfigChanges

public void storeConfigChanges(KubernetesJobAutoScalerContext jobContext,
                               ConfigChanges overrides)

Specified by:

storeConfigChanges in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

removeConfigChanges

public void removeConfigChanges(KubernetesJobAutoScalerContext jobContext)

Specified by:

removeConfigChanges in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

removeParallelismOverrides

public void removeParallelismOverrides(KubernetesJobAutoScalerContext jobContext)

Specified by:

removeParallelismOverrides in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

storeDelayedScaleDown

public void storeDelayedScaleDown(KubernetesJobAutoScalerContext jobContext,
                                  DelayedScaleDown delayedScaleDown)
                           throws java.lang.Exception

Specified by:

storeDelayedScaleDown in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

Throws:

java.lang.Exception

getDelayedScaleDown

@Nonnull
public DelayedScaleDown getDelayedScaleDown(KubernetesJobAutoScalerContext jobContext)

Specified by:

getDelayedScaleDown in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

clearAll

public void clearAll(KubernetesJobAutoScalerContext jobContext)

Description copied from interface: AutoScalerStateStore

Removes all data from this context. Flush stil needs to be called.

Specified by:

clearAll in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

flush

public void flush(KubernetesJobAutoScalerContext jobContext)

Description copied from interface: AutoScalerStateStore

Flushing is needed because we do not persist data for all store methods until this method is called. Note: The state store implementation should try to avoid write operations unless data was changed through this interface.

Specified by:

flush in interface AutoScalerStateStore<io.javaoperatorsdk.operator.processing.event.ResourceID,KubernetesJobAutoScalerContext>

serializeScalingHistory

protected static java.lang.String serializeScalingHistory(java.util.Map<org.apache.flink.runtime.jobgraph.JobVertexID,java.util.SortedMap<java.time.Instant,ScalingSummary>> scalingHistory)

serializeScalingTracking

protected static java.lang.String serializeScalingTracking(ScalingTracking scalingTracking)

serializeEvaluatedMetrics

@VisibleForTesting
protected static java.lang.String serializeEvaluatedMetrics(java.util.SortedMap<java.time.Instant,CollectedMetrics> evaluatedMetrics)

trimHistoryToMaxCmSize

@VisibleForTesting
protected void trimHistoryToMaxCmSize(KubernetesJobAutoScalerContext context)