/AWS1/CL_KN2CHECKPOINTCONF

Describes an application's checkpointing configuration. Checkpointing is the process of persisting application state for fault tolerance. For more information, see Checkpoints for Fault Tolerance in the Apache Flink Documentation.

CONSTRUCTOR

IMPORTING

Required arguments:

iv_configurationtype TYPE /AWS1/KN2CONFIGURATIONTYPE /AWS1/KN2CONFIGURATIONTYPE

Describes whether the application uses Managed Service for Apache Flink' default checkpointing behavior. You must set this property to CUSTOM in order to set the CheckpointingEnabled, CheckpointInterval, or MinPauseBetweenCheckpoints parameters.

If this value is set to DEFAULT, the application will use the following values, even if they are set to other values using APIs or application code:

• CheckpointingEnabled: true

• CheckpointInterval: 60000

• MinPauseBetweenCheckpoints: 5000

Optional arguments:

iv_checkpointingenabled TYPE /AWS1/KN2BOOLEANOBJECT /AWS1/KN2BOOLEANOBJECT

Describes whether checkpointing is enabled for a Managed Service for Apache Flink application.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a CheckpointingEnabled value of true, even if this value is set to another value using this API or in application code.

iv_checkpointinterval TYPE /AWS1/KN2CHECKPOINTINTERVAL /AWS1/KN2CHECKPOINTINTERVAL

Describes the interval in milliseconds between checkpoint operations.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a CheckpointInterval value of 60000, even if this value is set to another value using this API or in application code.

iv_minpausebetweencheckpts TYPE /AWS1/KN2MINPAUSEBETWEENCHEC00 /AWS1/KN2MINPAUSEBETWEENCHEC00

Describes the minimum time in milliseconds after a checkpoint operation completes that a new checkpoint operation can start. If a checkpoint operation takes longer than the CheckpointInterval, the application otherwise performs continual checkpoint operations. For more information, see Tuning Checkpointing in the Apache Flink Documentation.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a MinPauseBetweenCheckpoints value of 5000, even if this value is set using this API or in application code.

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Queryable Attributes

ConfigurationType

Describes whether the application uses Managed Service for Apache Flink' default checkpointing behavior. You must set this property to CUSTOM in order to set the CheckpointingEnabled, CheckpointInterval, or MinPauseBetweenCheckpoints parameters.

If this value is set to DEFAULT, the application will use the following values, even if they are set to other values using APIs or application code:

• CheckpointingEnabled: true

• CheckpointInterval: 60000

• MinPauseBetweenCheckpoints: 5000

Accessible with the following methods

Method	Description
GET_CONFIGURATIONTYPE()	Getter for CONFIGURATIONTYPE, with configurable default
ASK_CONFIGURATIONTYPE()	Getter for CONFIGURATIONTYPE w/ exceptions if field has no v
HAS_CONFIGURATIONTYPE()	Determine if CONFIGURATIONTYPE has a value

CheckpointingEnabled

Describes whether checkpointing is enabled for a Managed Service for Apache Flink application.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a CheckpointingEnabled value of true, even if this value is set to another value using this API or in application code.

Accessible with the following methods

Method	Description
GET_CHECKPOINTINGENABLED()	Getter for CHECKPOINTINGENABLED, with configurable default
ASK_CHECKPOINTINGENABLED()	Getter for CHECKPOINTINGENABLED w/ exceptions if field has n
HAS_CHECKPOINTINGENABLED()	Determine if CHECKPOINTINGENABLED has a value

CheckpointInterval

Describes the interval in milliseconds between checkpoint operations.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a CheckpointInterval value of 60000, even if this value is set to another value using this API or in application code.

Accessible with the following methods

Method	Description
GET_CHECKPOINTINTERVAL()	Getter for CHECKPOINTINTERVAL, with configurable default
ASK_CHECKPOINTINTERVAL()	Getter for CHECKPOINTINTERVAL w/ exceptions if field has no
HAS_CHECKPOINTINTERVAL()	Determine if CHECKPOINTINTERVAL has a value

MinPauseBetweenCheckpoints

Describes the minimum time in milliseconds after a checkpoint operation completes that a new checkpoint operation can start. If a checkpoint operation takes longer than the CheckpointInterval, the application otherwise performs continual checkpoint operations. For more information, see Tuning Checkpointing in the Apache Flink Documentation.

If CheckpointConfiguration.ConfigurationType is DEFAULT, the application will use a MinPauseBetweenCheckpoints value of 5000, even if this value is set using this API or in application code.

Accessible with the following methods

Method	Description
GET_MINPAUSEBETWEENCHECKPTS()	Getter for MINPAUSEBETWEENCHECKPOINTS, with configurable def
ASK_MINPAUSEBETWEENCHECKPTS()	Getter for MINPAUSEBETWEENCHECKPOINTS w/ exceptions if field
HAS_MINPAUSEBETWEENCHECKPTS()	Determine if MINPAUSEBETWEENCHECKPOINTS has a value