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[Feature][Doris] Support multi-table source read (apache#7895)
Co-authored-by: happyboy1024 <296442618@qq.com>
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| # Doris | ||
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| > Doris 源连接器 | ||
| ## 支持的引擎 | ||
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| > Spark<br/> | ||
| > Flink<br/> | ||
| > SeaTunnel Zeta<br/> | ||
| ## 主要功能 | ||
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| - [x] [批处理](../../concept/connector-v2-features.md) | ||
| - [ ] [流处理](../../concept/connector-v2-features.md) | ||
| - [ ] [精确一次](../../concept/connector-v2-features.md) | ||
| - [x] [列投影](../../concept/connector-v2-features.md) | ||
| - [x] [并行度](../../concept/connector-v2-features.md) | ||
| - [x] [支持用户自定义分片](../../concept/connector-v2-features.md) | ||
| - [x] [支持多表读](../../concept/connector-v2-features.md) | ||
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| ## 描述 | ||
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| 用于 Apache Doris 的源连接器。 | ||
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| ## 支持的数据源信息 | ||
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| | 数据源 | 支持版本 | 驱动 | Url | Maven | | ||
| |------------|--------------------------------------|--------|-----|-------| | ||
| | Doris | 仅支持Doris2.0及以上版本. | - | - | - | | ||
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| ## 数据类型映射 | ||
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| | Doris 数据类型 | SeaTunnel 数据类型 | | ||
| |--------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------| | ||
| | INT | INT | | ||
| | TINYINT | TINYINT | | ||
| | SMALLINT | SMALLINT | | ||
| | BIGINT | BIGINT | | ||
| | LARGEINT | STRING | | ||
| | BOOLEAN | BOOLEAN | | ||
| | DECIMAL | DECIMAL((Get the designated column's specified column size)+1,<br/>(Gets the designated column's number of digits to right of the decimal point.))) | | ||
| | FLOAT | FLOAT | | ||
| | DOUBLE | DOUBLE | | ||
| | CHAR<br/>VARCHAR<br/>STRING<br/>TEXT | STRING | | ||
| | DATE | DATE | | ||
| | DATETIME<br/>DATETIME(p) | TIMESTAMP | | ||
| | ARRAY | ARRAY | | ||
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| ## 源选项 | ||
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| 基础配置: | ||
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| | 名称 | 类型 | 是否必须 | 默认值 | 描述 | | ||
| |----------------------------------|--------|----------|------------|-----------------------------------------------------------------------------------------------------| | ||
| | fenodes | string | yes | - | FE 地址, 格式：`"fe_host:fe_http_port"` | | ||
| | username | string | yes | - | 用户名 | | ||
| | password | string | yes | - | 密码 | | ||
| | doris.request.retries | int | no | 3 | 请求Doris FE的重试次数 | | ||
| | doris.request.read.timeout.ms | int | no | 30000 | | | ||
| | doris.request.connect.timeout.ms | int | no | 30000 | | | ||
| | query-port | string | no | 9030 | Doris查询端口 | | ||
| | doris.request.query.timeout.s | int | no | 3600 | Doris扫描数据的超时时间，单位秒 | | ||
| | table_list | string | 否 | - | 表清单 | | ||
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| 表清单配置: | ||
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| | 名称 | 类型 | 是否必须 | 默认值 | 描述 | | ||
| |----------------------------------|--------|----------|------------|-----------------------------------------------------------------------------------------------------| | ||
| | database | string | yes | - | 数据库 | | ||
| | table | string | yes | - | 表名 | | ||
| | doris.read.field | string | no | - | 选择要读取的Doris表字段 | | ||
| | doris.filter.query | string | no | - | 数据过滤. 格式："字段 = 值", 例如：doris.filter.query = "F_ID > 2" | | ||
| | doris.batch.size | int | no | 1024 | 每次能够从BE中读取到的最大行数 | | ||
| | doris.exec.mem.limit | long | no | 2147483648 | 单个be扫描请求可以使用的最大内存。默认内存为2G（2147483648） | | ||
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| 注意: 当此配置对应于单个表时，您可以将table_list中的配置项展平到外层。 | ||
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| ### 提示 | ||
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| > 不建议随意修改高级参数 | ||
| ## 例子 | ||
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| ### 单表 | ||
| > 这是一个从doris读取数据后，输出到控制台的例子： | ||
| ``` | ||
| env { | ||
| parallelism = 2 | ||
| job.mode = "BATCH" | ||
| } | ||
| source{ | ||
| Doris { | ||
| fenodes = "doris_e2e:8030" | ||
| username = root | ||
| password = "" | ||
| database = "e2e_source" | ||
| table = "doris_e2e_table" | ||
| } | ||
| } | ||
| transform { | ||
| # If you would like to get more information about how to configure seatunnel and see full list of transform plugins, | ||
| # please go to https://seatunnel.apache.org/docs/transform/sql | ||
| } | ||
| sink { | ||
| Console {} | ||
| } | ||
| ``` | ||
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| 使用`doris.read.field`参数来选择需要读取的Doris表字段： | ||
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| ``` | ||
| env { | ||
| parallelism = 2 | ||
| job.mode = "BATCH" | ||
| } | ||
| source{ | ||
| Doris { | ||
| fenodes = "doris_e2e:8030" | ||
| username = root | ||
| password = "" | ||
| database = "e2e_source" | ||
| table = "doris_e2e_table" | ||
| doris.read.field = "F_ID,F_INT,F_BIGINT,F_TINYINT,F_SMALLINT" | ||
| } | ||
| } | ||
| transform { | ||
| # If you would like to get more information about how to configure seatunnel and see full list of transform plugins, | ||
| # please go to https://seatunnel.apache.org/docs/transform/sql | ||
| } | ||
| sink { | ||
| Console {} | ||
| } | ||
| ``` | ||
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| 使用`doris.filter.query`来过滤数据，参数值将作为过滤条件直接传递到doris： | ||
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| ``` | ||
| env { | ||
| parallelism = 2 | ||
| job.mode = "BATCH" | ||
| } | ||
| source{ | ||
| Doris { | ||
| fenodes = "doris_e2e:8030" | ||
| username = root | ||
| password = "" | ||
| database = "e2e_source" | ||
| table = "doris_e2e_table" | ||
| doris.filter.query = "F_ID > 2" | ||
| } | ||
| } | ||
| transform { | ||
| # If you would like to get more information about how to configure seatunnel and see full list of transform plugins, | ||
| # please go to https://seatunnel.apache.org/docs/transform/sql | ||
| } | ||
| sink { | ||
| Console {} | ||
| } | ||
| ``` | ||
| ### 多表 | ||
| ``` | ||
| env{ | ||
| parallelism = 1 | ||
| job.mode = "BATCH" | ||
| } | ||
| source{ | ||
| Doris { | ||
| fenodes = "xxxx:8030" | ||
| username = root | ||
| password = "" | ||
| table_list = [ | ||
| { | ||
| database = "st_source_0" | ||
| table = "doris_table_0" | ||
| doris.read.field = "F_ID,F_INT,F_BIGINT,F_TINYINT" | ||
| doris.filter.query = "F_ID >= 50" | ||
| }, | ||
| { | ||
| database = "st_source_1" | ||
| table = "doris_table_1" | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| transform {} | ||
| sink{ | ||
| Doris { | ||
| fenodes = "xxxx:8030" | ||
| schema_save_mode = "RECREATE_SCHEMA" | ||
| username = root | ||
| password = "" | ||
| database = "st_sink" | ||
| table = "${table_name}" | ||
| sink.enable-2pc = "true" | ||
| sink.label-prefix = "test_json" | ||
| doris.config = { | ||
| format="json" | ||
| read_json_by_line="true" | ||
| } | ||
| } | ||
| } | ||
| ``` |
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