# Doris > Doris source connector ### Key features[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#key-features) * [x] batch * [ ] stream * [ ] exactly-once * [x] schema projection * [x] parallelism * [x] support user-defined split ### Description[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#description) Used to read data from Doris. Doris Source will send a SQL to FE, FE will parse it into an execution plan, send it to BE, and BE will directly return the data ### Supported DataSource Info[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#supported-datasource-info)
DatasourceSupported versionsDriverUrlMaven
DorisOnly Doris2.0 or later is supported.---
### Data Type Mapping[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#data-type-mapping) | Doris Data type | Nexus Data type | | ---------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | | INT | INT | | TINYINT | TINYINT | | SMALLINT | SMALLINT | | BIGINT | BIGINT | | LARGEINT | STRING | | BOOLEAN | BOOLEAN | | DECIMAL |

DECIMAL((Get the designated column's specified column size)+1,
(Gets the designated column's number of digits to right of the decimal point.)))

| | FLOAT | FLOAT | | DOUBLE | DOUBLE | |

CHAR
VARCHAR
STRING
TEXT

| STRING | | DATE | DATE | |

DATETIME
DATETIME(p)

| TIMESTAMP | | ARRAY | ARRAY | ### Source Options[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#source-options) | Name | Type | Required | Default | Description | | -------------------------------- | ------ | -------- | ---------- | --------------------------------------------------------------------------------------------------- | | fenodes | string | yes | - | FE address, the format is `"fe_host:fe_http_port"` | | username | string | yes | - | User username | | password | string | yes | - | User password | | database | string | yes | - | The name of Doris database | | table | string | yes | - | The name of Doris table | | doris.read.field | string | no | - | Use the 'doris.read.field' parameter to select the doris table columns to read | | query-port | string | no | 9030 | Doris QueryPort | | doris.filter.query | string | no | - | Data filtering in doris. the format is "field = value",example : doris.filter.query = "F\_ID > 2" | | doris.batch.size | int | no | 1024 | The maximum value that can be obtained by reading Doris BE once. | | doris.request.query.timeout.s | int | no | 3600 | Timeout period of Doris scan data, expressed in seconds. | | doris.exec.mem.limit | long | no | 2147483648 | Maximum memory that can be used by a single be scan request. The default memory is 2G (2147483648). | | doris.request.retries | int | no | 3 | Number of retries to send requests to Doris FE. | | doris.request.read.timeout.ms | int | no | 30000 | | | doris.request.connect.timeout.ms | int | no | 30000 | | #### Tips[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#tips) > It is not recommended to modify advanced parameters at will ### Task Example[​](https://seatunnel.apache.org/docs/2.3.7/connector-v2/source/Doris#task-example) > This is an example of reading a Doris table and writing to Console. ``` 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 nexus and see full list of transform plugins, # please go to transform page } sink { Console {} } ``` Use the 'doris.read.field' parameter to select the doris table columns to read ``` 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 nexus and see full list of transform plugins, # please go to transform page } sink { Console {} } ``` Use 'doris.filter.query' to filter the data, and the parameter values are passed directly to doris ``` 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 nexus and see full list of transform plugins, # please go to transform page } sink { Console {} } ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.selfuel.digital/data-integration-with-nexus/nexus-elements/connectors/source/doris.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.