ParquetOutputFormat

class aws_cdk.aws_kinesisfirehose.ParquetOutputFormat(*, block_size=None, compression=None, enable_dictionary_compression=None, max_padding=None, page_size=None, writer_version=None)

Bases: object

This class specifies properties for Parquet output format for record format conversion.

You should only need to specify an instance of this class if the default configuration does not suit your needs.

ExampleMetadata:

infused

Example:

output_format = firehose.ParquetOutputFormat(
    block_size=Size.mebibytes(512),
    compression=firehose.ParquetCompression.UNCOMPRESSED,
    enable_dictionary_compression=True,
    max_padding=Size.bytes(10),
    page_size=Size.mebibytes(2),
    writer_version=firehose.ParquetWriterVersion.V2
)
Parameters:

  • block_size (Optional[Size]) – The Hadoop Distributed File System (HDFS) block size. This is useful if you intend to copy the data from Amazon S3 to HDFS before querying. Firehose uses this value for padding calculations. Default: Size.mebibytes(256)

  • compression (Optional[ParquetCompression]) – The compression code to use over data blocks. The possible values are UNCOMPRESSED , SNAPPY , and GZIP. Use SNAPPY for higher decompression speed. Use GZIP if the compression ratio is more important than speed. Default: SNAPPY

  • enable_dictionary_compression (Optional[bool]) – Indicates whether to enable dictionary compression. Default: false

  • max_padding (Optional[Size]) – The maximum amount of padding to apply. This is useful if you intend to copy the data from Amazon S3 to HDFS before querying. Default: no padding is applied

  • page_size (Optional[Size]) – The Parquet page size. Column chunks are divided into pages. A page is conceptually an indivisible unit (in terms of compression and encoding). The minimum value is 64 KiB and the default is 1 MiB. Default: Size.mebibytes(1)

  • writer_version (Optional[ParquetWriterVersion]) – Indicates the version of Parquet to output. The possible values are V1 and V2 Default: V1

Methods

create_output_format_config()

Renders the cloudformation properties for the output format.

Return type:

OutputFormatConfigurationProperty

Attributes

props

Properties for the Parquet output format.