Source: https://seerepo.com/compare/apache/dubbo/vs/opensearch-project/OpenSearch
Markdown source: https://seerepo.com/compare/apache/dubbo/vs/opensearch-project/OpenSearch.md
Description: dubbo and OpenSearch share 7 technologies: JAX-RS, compiler, commons-logging, log4j-slf4j-impl, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

# dubbo vs OpenSearch

dubbo and OpenSearch share 7 technologies: JAX-RS, compiler, commons-logging, log4j-slf4j-impl, OpenTelemetry, org.apache.logging.log4j:log4j-api, and org.apache.logging.log4j:log4j-core. Both are written in Java.

- [apache/dubbo](https://seerepo.com/r/apache/dubbo): The java implementation of Apache Dubbo. An RPC and microservice framework.
- [opensearch-project/OpenSearch](https://seerepo.com/r/opensearch-project/OpenSearch): 🔎 Open source distributed and RESTful search engine.

## What they share and what sets them apart

- In common: JAX-RS, compiler, commons-logging, log4j-slf4j-impl, OpenTelemetry, org.apache.logging.log4j:log4j-api, org.apache.logging.log4j:log4j-core
- Only in dubbo: curator-recipes, hazelcast, org.springframework:spring-jdbc, com.alibaba.nacos:nacos-client, org.apache.zookeeper:zookeeper, javax.cache:cache-api, dubbo-registry-nacos, dubbo-spring-boot-starter, org.apache.tomcat.embed:tomcat-embed-websocket, org.springframework:spring-tx, Spring Boot, tomcat-embed-core, tomcat-embed-el, Spring, javax.servlet:javax.servlet-api, org.apache.dubbo:dubbo, jakarta.servlet:jakarta.servlet-api, org.springframework.security:spring-security-bom, spring-security-oauth2-authorization-server, spring-security-oauth2-client, org.springframework.boot:spring-boot-starter-validation, Hibernate, jakarta.validation:jakarta.validation-api, javax.validation:validation-api, io.opentelemetry:opentelemetry-bom, logback-classic, micrometer-registry-prometheus, micrometer-tracing-bridge-brave, micrometer-tracing-bridge-otel, org.apache.logging.log4j:log4j-slf4j2-impl, org.springframework.boot:spring-boot-starter-logging, Prometheus, sentinel-transport-simple-http, zipkin-reporter-brave, io.micrometer:micrometer-core, io.micrometer:micrometer-observation, io.micrometer:micrometer-tracing, org.slf4j:slf4j-api, log4j:log4j, io.micrometer:micrometer-registry-otlp
- Only in OpenSearch: apache-client, arrow-c-data, arrow-memory-netty-buffer-patch, avro, aws-crt-client, aws-json-protocol, kafka-clients, lucene-memory, org.apache.arrow:flight-core, s3, datafusion, Apache, object_store, arrow, software.amazon.awssdk:sdk-core, org.apache.hadoop:hadoop-client-api, org.apache.calcite.avatica:avatica-core, datafusion-datasource, com.azure:azure-storage-blob, software.amazon.awssdk:kms, org.apache.hadoop:hadoop-hdfs, org.ehcache:ehcache, foyer, grpc-services, JetBrains, servlet-api, Tokio, joou-java-6, com.google.auth:google-auth-library-oauth2-http, google-oauth-client, msal4j, nimbus-jose-jwt, oauth2-oidc-sdk, software.amazon.awssdk:auth, software.amazon.awssdk:sts, com.azure:azure-identity, jdom2, jsoup, mail, org.apache.james:apache-mime4j-dom, pdfbox-io, poi, poi-ooxml, poi-ooxml-lite, poi-scratchpad, tika-parsers, parquet, org.apache.tika:tika-core, org.apache.pdfbox:pdfbox, json-schema-validator, io.opentelemetry:opentelemetry-sdk-common, log4j-1.2-api, slf4j-api, log, software.amazon.awssdk:regions, io.opentelemetry:opentelemetry-sdk, software.amazon.awssdk:ec2, io.opentelemetry:opentelemetry-exporter-logging, io.opentelemetry:opentelemetry-exporter-otlp, io.opentelemetry.semconv:opentelemetry-semconv

## Side by side

| | dubbo | OpenSearch |
|---|---|---|
| Size | 482,221 lines written, 2,425 code files | 3,021,895 lines written, 8,159 code files |
| Who writes it | 0.1% of its commits signed by AI. With GitHub Copilot and Claude Code | 0% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and CodeRabbit |
| Activity | Last push November 3, 2026, 8,430 commits, 41,572 stars | Last push November 9, 2026, 57,216 commits, 13,983 stars |
| Tests | 1,630 test files. 50.3% of its code files have a test that imports them | 5,508 test files. 65.6% 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, dubbo or OpenSearch?

OpenSearch, with 3,021,895 lines written; dubbo has 482,221.

The proof: [opensearch-project/OpenSearch's code at commit 2923a00](https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

### Which has more GitHub stars, dubbo or OpenSearch?

dubbo, with 41,572 stars; OpenSearch has 13,983.

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

### Which has more tests, dubbo or OpenSearch?

OpenSearch, with 5,508 test files; dubbo has 1,630.

The proof: [opensearch-project/OpenSearch's code at commit 2923a00](https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

### Which was updated more recently, dubbo or OpenSearch?

OpenSearch: its last push was on November 9, 2026, and dubbo's on November 3, 2026.

The proof: [opensearch-project/OpenSearch's commits on GitHub](https://github.com/opensearch-project/OpenSearch/commits)

### Which has more commits signed by AI, dubbo or OpenSearch?

dubbo: an AI signed 0.1% of its commits, with GitHub Copilot and Claude Code.

## Sources

- apache/dubbo: Read on November 6, 2026, at commit 2d9730c (https://github.com/apache/dubbo/tree/2d9730c6ab4358d94c6e3594fdd2dca0009fe912)
- opensearch-project/OpenSearch: Read on November 9, 2026, at commit 2923a00 (https://github.com/opensearch-project/OpenSearch/tree/2923a00aa3758b357462dc85dc85ebe3e834e37d)

## 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.