版本：Next

CosFile

Cos 文件接收器连接器

描述

将数据输出到cos文件系统.

:::提示

如果你使用spark/flink，为了使用这个连接器，你必须确保你的spark/flilk集群已经集成了hadoop。测试的hadoop版本是2.x

如果你使用SeaTunnel Engine，当你下载并安装SeaTunnel引擎时，它会自动集成hadoop jar。您可以在${SEATUNNEL_HOME}/lib下检查jar包以确认这一点.

要使用此连接器，您需要将hadoop cos-{hadoop.version}-{version}.jar和cos_api-bundle-{version}.jar位于${SEATUNNEL_HOME}/lib目录中，下载：Hoop cos发布. 它只支持hadoop 2.6.5+和8.0.2版本+.

:::

关键特性

精确一次

默认情况下，我们使用2PC commit来确保 精确一次

选项

名称	类型	必需	默认值	描述
path	string	是	-
tmp_path	string	否	/tmp/seatunnel	结果文件将首先写入tmp路径，然后使用“mv”将tmp目录提交到目标目录。需要一个COS目录.
bucket	string	是	-
secret_id	string	是	-
secret_key	string	是	-
region	string	是	-
custom_filename	boolean	否	false	是否需要自定义文件名
file_name_expression	string	否	"${transactionId}"	仅在custom_filename为true时使用
filename_time_format	string	否	"yyyy.MM.dd"	仅在custom_filename为true时使用
file_format_type	string	否	"csv"
filename_extension	string	否	-	使用自定义的文件扩展名覆盖默认的文件扩展名。例如：`.xml`, `.json`, `dat`, `.customtype`
field_delimiter	string	否	'\001'	仅在file_format为text时使用
row_delimiter	string	否	"\n"	仅在file_format为text时使用
have_partition	boolean	否	false	是否需要处理分区.
partition_by	array	否	-	只有在have_partition为true时才使用
partition_dir_expression	string	否	"${k0}=${v0}/${k1}=${v1}/.../${kn}=${vn}/"	只有在have_partition为true时才使用
is_partition_field_write_in_file	boolean	否	false	只有在have_partition为true时才使用
sink_columns	array	否		当此参数为空时，所有字段都是接收列
is_enable_transaction	boolean	否	true
batch_size	int	否	1000000
compress_codec	string	否	none
common-options	object	否	-
max_rows_in_memory	int	否	-	仅在file_format为excel时使用.
sheet_name	string	否	Sheet${Random number}	仅在file_format为excel时使用.
csv_string_quote_mode	enum	否	MINIMAL	仅在file_format为csv时使用.
xml_root_tag	string	否	RECORDS	仅在file_format为xml时使用.
xml_row_tag	string	否	RECORD	仅在file_format为xml时使用.
xml_use_attr_format	boolean	否	-	仅在file_format为xml时使用.
single_file_mode	boolean	否	false	每个并行处理只会输出一个文件。启用此参数后，batch_size将不会生效。输出文件名没有文件块后缀.
create_empty_file_when_no_data	boolean	否	false	当上游没有数据同步时，仍然会生成相应的数据文件.
parquet_avro_write_timestamp_as_int96	boolean	否	false	仅在file_format为parquet时使用.
parquet_avro_write_fixed_as_int96	array	否	-	仅在file_format为parquet时使用.
encoding	string	否	"UTF-8"	仅当file_format_type为json、text、csv、xml时使用.

path [string]

目标目录路径是必需的.

bucket [string]

cos文件系统的bucket地址，例如：cosn://seatunnel-test-1259587829

secret_id [string]

cos文件系统的密钥id.

secret_key [string]

cos文件系统的密钥.

region [string]

cos文件系统的分区.

custom_filename [boolean]

是否自定义文件名

file_name_expression [string]

仅在 custom_filename 为 true时使用

file_name_expression描述了将在path中创建的文件表达式。我们可以在file_name_expression中添加变量${now}或${uuid}，类似于test_${uuid}_${now}， ${now}表示当前时间，其格式可以通过指定选项filename_time_format来定义.

请注意，如果is_enable_transaction为true，我们将自动添加${transactionId}_在文件的开头

filename_time_format [string]

仅在 custom_filename 为 true 时使用`

当 file_name_expression 参数中的格式为 xxxx-${now} 时，filename_time_format 可以指定路径的时间格式，默认值为 yyyy.MM.dd。常用的时间格式如下：

符号	描述
y	年
M	月
d	日
H	时 (0-23)
m	分
s	秒

file_format_type [string]

我们支持以下文件类型:

text csv parquet orc json excel xml binary

请注意，最终文件名将以 file_format 的后缀结尾, 文本文件的后缀为 txt.

field_delimiter [string]

数据行中列之间的分隔符. 仅需要 text 文件格式.

row_delimiter [string]

文件中行之间的分隔符. 只需要 text 文件格式.

have_partition [boolean]

是否需要处理分区.

partition_by [array]

仅在 have_partition 为 true 时使用.

基于选定字段对数据进行分区.

partition_dir_expression [string]

仅在 have_partition 为 true 时使用.

如果指定了 partition_by ，我们将根据分区信息生成相应的分区目录，并将最终文件放置在分区目录中。默认的 partition_dir_expression 是 ${k0}=${v0}/${k1}=${v1}/.../${kn}=${vn}/. k0 是第一个分区字段 , v0 是第一个划分字段的值.

is_partition_field_write_in_file [boolean]

仅在 have_partition 为 true 时使用.

如果 is_partition_field_write_in_file 为 true, 分区字段及其值将写入数据文件.

例如，如果你想写一个Hive数据文件，它的值应该是 false.

sink_columns [array]

哪些列需要写入文件，默认值是从 Transform 或 Source 获取的所有列. 字段的顺序决定了文件实际写入的顺序.

is_enable_transaction [boolean]

如果 is_enable_transaction 为 true, 我们将确保数据在写入目标目录时不会丢失或重复.

请注意，如果 is_enable_transaction 为 true, 我们将自动添加 ${transactionId}_ 在文件的开头.

现在只支持 true .

batch_size [int]

文件中的最大行数。对于SeaTunnel引擎，文件中的行数由 batch_size 和 checkpoint.interval 共同决定. 如果 checkpoint.interval 的值足够大, 接收器写入程序将在文件中写入行，直到文件中的行大于 batch_size. 如果 checkpoint.interval 较小, 则接收器写入程序将在新的检查点触发时创建一个新文件.

compress_codec [string]

文件的压缩编解码器和支持的详细信息如下所示：

txt: lzo none
json: lzo none
csv: lzo none
orc: lzo snappy lz4 zlib none
parquet: lzo snappy lz4 gzip brotli zstd none

Tips: excel 类型不支持任何压缩格式

common options

接收器写入插件常用参数，请参考 Sink Common Options 了解详细信息.

max_rows_in_memory [int]

当文件格式为Excel时，内存中可以缓存的最大数据项数.

sheet_name [string]

编写工作簿的工作表

csv_string_quote_mode [string]

当文件格式为CSV时，CSV的字符串引用模式.

ALL: 所有字符串字段都将被引用.
MINIMAL: 引号字段包含特殊字符，如字段分隔符、引号字符或行分隔符字符串中的任何字符.
NONE: 从不引用字段。当分隔符出现在数据中时，打印机会用转义符作为前缀。如果未设置转义符，格式验证将抛出异常.

xml_root_tag [string]

指定XML文件中根元素的标记名.

xml_row_tag [string]

指定XML文件中数据行的标记名称.

xml_use_attr_format [boolean]

指定是否使用标记属性格式处理数据.

parquet_avro_write_timestamp_as_int96 [boolean]

支持从时间戳写入Parquet INT96，仅适用于拼花地板文件.

parquet_avro_write_fixed_as_int96 [array]

支持从12字节字段写入Parquet INT96，仅适用于拼花地板文件.

encoding [string]

仅当file_format_type为json、text、csv、xml时使用. 要写入的文件的编码。此参数将由Charset.forName(encoding) 解析.

示例

对于具有 have_partition 、 custom_filename 和 sink_columns 的文本文件格式

  CosFile {
    path="/sink"
    bucket = "cosn://seatunnel-test-1259587829"
    secret_id = "xxxxxxxxxxxxxxxxxxx"
    secret_key = "xxxxxxxxxxxxxxxxxxx"
    region = "ap-chengdu"
    file_format_type = "text"
    field_delimiter = "\t"
    row_delimiter = "\n"
    have_partition = true
    partition_by = ["age"]
    partition_dir_expression = "${k0}=${v0}"
    is_partition_field_write_in_file = true
    custom_filename = true
    file_name_expression = "${transactionId}_${now}"
    filename_time_format = "yyyy.MM.dd"
    sink_columns = ["name","age"]
    is_enable_transaction = true
  }

适用于带有have_partition 和 sink_columns的parquet 文件格式`

  CosFile {
    path="/sink"
    bucket = "cosn://seatunnel-test-1259587829"
    secret_id = "xxxxxxxxxxxxxxxxxxx"
    secret_key = "xxxxxxxxxxxxxxxxxxx"
    region = "ap-chengdu"
    have_partition = true
    partition_by = ["age"]
    partition_dir_expression = "${k0}=${v0}"
    is_partition_field_write_in_file = true
    file_format_type = "parquet"
    sink_columns = ["name","age"]
  }

对于orc文件格式的简单配置

  CosFile {
    path="/sink"
    bucket = "cosn://seatunnel-test-1259587829"
    secret_id = "xxxxxxxxxxxxxxxxxxx"
    secret_key = "xxxxxxxxxxxxxxxxxxx"
    region = "ap-chengdu"
    file_format_type = "orc"
  }

变更日志

Change Log

Change	Commit	Version
[Feature][Connector-V2] Add `filename_extension` parameter for read/write file (#8769)	https://github.com/apache/seatunnel/commit/78b23c0ef5	dev
[Improve] restruct connector common options (#8634)	https://github.com/apache/seatunnel/commit/f3499a6eeb	dev
[Feature][Connector-V2] Support create emtpy file when no data (#8543)	https://github.com/apache/seatunnel/commit/275db78918	dev
[Feature][Connector-V2] Support single file mode in file sink (#8518)	https://github.com/apache/seatunnel/commit/e893deed50	dev
[Feature][File] Support config null format for text file read (#8109)	https://github.com/apache/seatunnel/commit/2dbf02df47	2.3.9
[Improve][Connector-V2] Change File Read/WriteStrategy `setSeaTunnelRowTypeInfo` to `setCatalogTable` (#7829)	https://github.com/apache/seatunnel/commit/6b5f74e524	2.3.9
[Feature][Restapi] Allow metrics information to be associated to logical plan nodes (#7786)	https://github.com/apache/seatunnel/commit/6b7c53d03c	2.3.9
[Improve][Connector-V2] Support read archive compress file (#7633)	https://github.com/apache/seatunnel/commit/3f98cd8a16	2.3.8
[Improve][Files] Support write fixed/timestamp as int96 of parquet (#6971)	https://github.com/apache/seatunnel/commit/1a48a9c493	2.3.6
[Feature][Connector-V2] Supports the transfer of any file (#6826)	https://github.com/apache/seatunnel/commit/c1401787b3	2.3.6
[Feature][Tool] Add connector check script for issue 6199 (#6635)	https://github.com/apache/seatunnel/commit/65aedf6a79	2.3.5
Add support for XML file type to various file connectors such as SFTP, FTP, LocalFile, HdfsFile, and more. (#6327)	https://github.com/apache/seatunnel/commit/ec533ecd9a	2.3.5
[Refactor][File Connector] Put Multiple Table File API to File Base Module (#6033)	https://github.com/apache/seatunnel/commit/c324d663b4	2.3.4
Support using multiple hadoop account (#5903)	https://github.com/apache/seatunnel/commit/d69d88d1aa	2.3.4
[Improve][Common] Introduce new error define rule (#5793)	https://github.com/apache/seatunnel/commit/9d1b2582b2	2.3.4
[Improve][connector-file] unifiy option between file source/sink and update document (#5680)	https://github.com/apache/seatunnel/commit/8d87cf8fc4	2.3.4
[Feature] Support `LZO` compress on File Read (#5083)	https://github.com/apache/seatunnel/commit/a4a1901096	2.3.4
[Feature][Connector-V2][File] Support read empty directory (#5591)	https://github.com/apache/seatunnel/commit/1f58f224a0	2.3.4
Support config column/primaryKey/constraintKey in schema (#5564)	https://github.com/apache/seatunnel/commit/eac76b4e50	2.3.4
[Feature][File Connector]optionrule FILE_FORMAT_TYPE is text/csv ,add parameter BaseSinkConfig.ENABLE_HEADER_WRITE: #5566 (#5567)	https://github.com/apache/seatunnel/commit/0e02db768d	2.3.4
[Feature][Connector V2][File] Add config of 'file_filter_pattern', which used for filtering files. (#5153)	https://github.com/apache/seatunnel/commit/a3c13e59eb	2.3.3
[Feature][Connector-V2][File] Add cos source&sink (#4979)	https://github.com/apache/seatunnel/commit/1f94676436	2.3.3

CosFile

描述​

关键特性​

选项​

path [string]​

bucket [string]​

secret_id [string]​

secret_key [string]​

region [string]​

custom_filename [boolean]​

file_name_expression [string]​

filename_time_format [string]​

file_format_type [string]​

field_delimiter [string]​

row_delimiter [string]​

have_partition [boolean]​

partition_by [array]​

partition_dir_expression [string]​

is_partition_field_write_in_file [boolean]​

sink_columns [array]​

is_enable_transaction [boolean]​

batch_size [int]​

compress_codec [string]​

common options​

max_rows_in_memory [int]​

sheet_name [string]​

csv_string_quote_mode [string]​

xml_root_tag [string]​

xml_row_tag [string]​

xml_use_attr_format [boolean]​

parquet_avro_write_timestamp_as_int96 [boolean]​

parquet_avro_write_fixed_as_int96 [array]​

encoding [string]​

示例​

变更日志​

描述

关键特性

选项

path [string]

bucket [string]

secret_id [string]

secret_key [string]

region [string]

custom_filename [boolean]

file_name_expression [string]

filename_time_format [string]

file_format_type [string]

field_delimiter [string]

row_delimiter [string]

have_partition [boolean]

partition_by [array]

partition_dir_expression [string]

is_partition_field_write_in_file [boolean]

sink_columns [array]

is_enable_transaction [boolean]

batch_size [int]

compress_codec [string]

common options

max_rows_in_memory [int]

sheet_name [string]

csv_string_quote_mode [string]

xml_root_tag [string]

xml_row_tag [string]

xml_use_attr_format [boolean]

parquet_avro_write_timestamp_as_int96 [boolean]

parquet_avro_write_fixed_as_int96 [array]

encoding [string]

示例

变更日志