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Alter Default Data Pipeline Behavior

An administrator might configure some parameters that control the behavior of data pipelines to modify the default behavior across the  System or specific nodes. You can use the ALTER SYSTEM ALTER CONFIG SQL statements to control the configuration parameters.

Syntax

SQL


Parameter

Data Type

Description

parameter_name

string

The name of the pipeline parameter, either general or specific to the BINARY format.

parameter_value

string

The value for the pipeline parameter.

General Parameters

General Parameter Name

Default

Data Type

Required Value and Description

sql.pipelineparameters.targetTimePerExtractorTask

600

UINT64_T



Target execution time in seconds for run_extractor tasks for file loads.

sql.pipelineparameters.defaultPartitionsPerExtractorTask

-1

INT

Number of partitions per task.

If you set this parameter to -1, the number is based on available CPU cores.

sql.pipelineparameters.defaultExtractorCores

-1

INT

Number of cores to use in a task.

If you set this parameter to -1, the number is based on available CPU cores.

Binary Format Parameters

You can modify these parameters to change the default behavior of the BINARY data format extraction.

Binary Format Parameter Name

Default

Data Type

Required Value and Description

sql.pipelineparameters.extract.binary.defaultEndianness

big

string

The endianness of transforms when you do not specify it in another way.

Supported values are big or little.

sql.pipelineparameters.extract.binary.defaultCharset

ibm1047

string

Determines the default character set to use when you load data in the BINARY format.

sql.pipelineparameters.extract.binary.defaultAutoTrimPadding

true

Boolean

Determines the default for whether a padding character should be trimmed when decoding data in the BINARY format to a string.

sql.pipelineparameters.extract.binary.defaultPaddingCharacter

' '

CHAR

Determines the default padding character to trim from the end of a string when decoding data in the BINARY format.

This parameter is effective only if the extract.binary.defaultAutoTrimPadding parameter is set to true.

Examples

Set the target execution time for the extractor task to 600 seconds.

SQL


Set the default endianness of transforms to little endian for the BINARY extract.

SQL


The configuration values only go into effect after the ALTER SQL statement succeeds and you restart the affected nodes.

Related Links

Load Data