Source: https://seerepo.com/compare/apache/flink/vs/StarRocks/starrocks
Markdown source: https://seerepo.com/compare/apache/flink/vs/StarRocks/starrocks.md
Description: flink and starrocks share 20 technologies: hadoop-aliyun, hadoop-aws, hadoop-azure, hadoop-common, hadoop-mapreduce-client-core, s3, s3-transfer-manager, zookeeper, org.apache.avro:avro, org.apache.orc:orc-core, org.apache.parquet:parquet-hadoop, org.apache.hadoop:hadoop-hdfs, grpc-bom, software.amazon.awssdk:sts, commons-logging, log4j-layout-template-json, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

# flink vs starrocks

flink and starrocks share 20 technologies: hadoop-aliyun, hadoop-aws, hadoop-azure, hadoop-common, hadoop-mapreduce-client-core, s3, s3-transfer-manager, zookeeper, org.apache.avro:avro, org.apache.orc:orc-core, org.apache.parquet:parquet-hadoop, org.apache.hadoop:hadoop-hdfs, grpc-bom, software.amazon.awssdk:sts, commons-logging, log4j-layout-template-json, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

- [apache/flink](https://seerepo.com/r/apache/flink): Apache Flink
- [StarRocks/starrocks](https://seerepo.com/r/StarRocks/starrocks): The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

## What they share and what sets them apart

- In common: hadoop-aliyun, hadoop-aws, hadoop-azure, hadoop-common, hadoop-mapreduce-client-core, s3, s3-transfer-manager, zookeeper, org.apache.avro:avro, org.apache.orc:orc-core, org.apache.parquet:parquet-hadoop, org.apache.hadoop:hadoop-hdfs, grpc-bom, software.amazon.awssdk:sts, commons-logging, log4j-layout-template-json, org.slf4j:slf4j-api, OpenTelemetry, org.apache.logging.log4j:log4j-api, org.apache.logging.log4j:log4j-core
- Only in flink: apache-client, aws-crt-client, aws-java-sdk-dynamodb, aws-java-sdk-s3, fastavro, hadoop-apache2, Hive, org.apache.hadoop:hadoop-hdfs-client, Apache, pyarrow, com.aliyun.oss:aliyun-sdk-oss, InfluxDB, io.confluent:kafka-schema-registry-client, org.apache.parquet:parquet-avro, com.facebook.presto:presto-hive, OpenAI, org.jetbrains.kotlin:kotlin-stdlib, apache-beam, Angular, aws-java-sdk-sts, org.apache.hadoop:hadoop-minikdc, hadoop-yarn-common, io.opentelemetry:opentelemetry-exporter-logging, kubernetes-httpclient-okhttp, metrics-core, metrics-graphite, org.apache.logging.log4j:log4j-slf4j2-impl, Prometheus, io.fabric8:kubernetes-client, io.opentelemetry:opentelemetry-api, io.opentelemetry:opentelemetry-exporter-otlp
- Only in starrocks: arrow-c-data, asyncmy2, azure-sdk-bom, ClickHouse, cos_api-bundle, flight-sql-jdbc-driver, hadoop-azure-datalake, hadoop-client, hadoop-cos, hadoop-hdfs-native-client, hadoop-hdfs-nfs, hadoop-nfs, hbase-client, hbase-server, hive-apache, iceberg-api, iceberg-aws, iceberg-core, iceberg-hive-metastore, iceberg-parquet, kafka-clients, MariaDB, mssql-jdbc, odps-sdk-core, paimon-s3, parquet-avro, PostgreSQL, spark-sql_2.12, Trino, url-connection-client, org.apache.hadoop:hadoop-client-api, com.github.ben-manes.caffeine:caffeine, org.apache.arrow:arrow-jdbc, software.amazon.awssdk:glue, com.aliyun.odps:odps-sdk-table-api, org.apache.kudu:kudu-client, Postgres, com.zaxxer:HikariCP, com.aliyun.datalake:metastore-client-hive3, com.azure:azure-storage-blob, org.apache.arrow:flight-sql, software.amazon.awssdk:dynamodb, software.amazon.awssdk:kms, AWS S3, jetty-io, jetty-server, jetty-servlet, jetty-util, jetty-webapp, org.apache.flink:flink-core, spark-core_2.12, tomcat-embed-core, com.google.inject:guice, SQLAlchemy, alembic, org.jdbi:jdbi3-core, hadoop-auth, ranger-plugins-common, com.nimbusds:nimbus-jose-jwt, com.azure:azure-identity, javax.activation, jdom2, org.apache.velocity:velocity-engine-core, com.opencsv:opencsv, commons-validator, javax.validation:validation-api, commons-daemon, jul-to-slf4j, log4j-1.2-api, log4j-slf4j-impl

## Side by side

| | flink | starrocks |
|---|---|---|
| Size | 2,869,317 lines written, 9,840 code files | 1,905,864 lines written, 4,430 code files |
| Who writes it | 0.4% of its commits signed by AI. With Claude Code | 6.1% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, Codex, and Qwen Code |
| Activity | Last push November 8, 2026, 38,159 commits, 26,458 stars | Last push November 11, 2026, 28,125 commits, 12,245 stars |
| Tests | 5,728 test files. 61.8% of its code files have a test that imports them | 2,528 test files. 68.5% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, flink or starrocks?

flink, with 2,869,317 lines written; starrocks has 1,905,864.

The proof: [apache/flink's code at commit 4fb928e](https://github.com/apache/flink/tree/4fb928ed93fcb24b58beba1b5e5d55b8168b1752)

### Which has more GitHub stars, flink or starrocks?

flink, with 26,458 stars; starrocks has 12,245.

The proof: [apache/flink on GitHub](https://github.com/apache/flink)

### Which has more tests, flink or starrocks?

flink, with 5,728 test files; starrocks has 2,528.

The proof: [apache/flink's code at commit 4fb928e](https://github.com/apache/flink/tree/4fb928ed93fcb24b58beba1b5e5d55b8168b1752)

### Which was updated more recently, flink or starrocks?

starrocks: its last push was on November 11, 2026, and flink's on November 8, 2026.

The proof: [StarRocks/starrocks's commits on GitHub](https://github.com/StarRocks/starrocks/commits)

### Which has more commits signed by AI, flink or starrocks?

starrocks: an AI signed 6.1% of its commits, with Claude Code, GitHub Copilot, Cursor, Codex, and Qwen Code; in flink, 0.4%.

The proof: [the commits each tool signed in StarRocks/starrocks](https://seerepo.com/r/StarRocks/starrocks/ai)

## Sources

- apache/flink: Read on November 8, 2026, at commit 4fb928e (https://github.com/apache/flink/tree/4fb928ed93fcb24b58beba1b5e5d55b8168b1752)
- StarRocks/starrocks: Read on November 11, 2026, at commit 70b6703 (https://github.com/StarRocks/starrocks/tree/70b67031b169eac6f0ab0366467f709eec6e0f3d)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.