spaces-x 62b38d7a75 [fix](spark load) fix getHashValue of string type is always zero in spark load. (#9136)
Buffer flip is used incorrectly.
When the hash key is string type, the hash value is always zero.
The reason is that the buffer of string type is obtained by wrap, which is not needed to flip.
If we do so, the buffer limit for read will be zero.
2022-04-26 10:14:21 +08:00

Apache Doris (incubating)

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Doris is an MPP-based interactive SQL data warehousing for reporting and analysis. Its original name was Palo, developed in Baidu. After donated to Apache Software Foundation, it was renamed Doris.

  • Doris provides high concurrent low latency point query performance, as well as high throughput queries of ad-hoc analysis.

  • Doris provides batch data loading and real-time mini-batch data loading.

  • Doris provides high availability, reliability, fault tolerance, and scalability.

The main advantages of Doris are the simplicity (of developing, deploying and using) and meeting many data serving requirements in a single system. For details, refer to Overview.

Official website: https://doris.apache.org/

Monthly Active Contributors

Contributor over time

License

Apache License, Version 2.0

Note

Some licenses of the third-party dependencies are not compatible with Apache 2.0 License. So you need to disable some Doris features to be complied with Apache 2.0 License. For details, refer to the thirdparty/LICENSE.txt

Technology

Doris mainly integrates the technology of Google Mesa and Apache Impala, and it is based on a column-oriented storage engine and can communicate by MySQL client.

Compile and install

See Compilation

Getting start

See Basic Usage

Doris Connector

Doris provides support for Spark/Flink to read data stored in Doris through Connector, and also supports to write data to Doris through Connector.

apache/incubator-doris-flink-connector

apache/incubator-doris-spark-connector

Report issues or submit pull request

If you find any bugs, feel free to file a GitHub issue or fix it by submitting a pull request.

Contact Us

Contact us through the following mailing list.

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