Source: https://seerepo.com/compare/apache/pulsar/vs/Netflix/eureka
Markdown source: https://seerepo.com/compare/apache/pulsar/vs/Netflix/eureka.md
Description: pulsar and eureka share 3 technologies: JAX-RS, com.google.inject:guice, and aws-java-sdk-sts. Both are written in Java.

# pulsar vs eureka

pulsar and eureka share 3 technologies: JAX-RS, com.google.inject:guice, and aws-java-sdk-sts. Both are written in Java.

- [apache/pulsar](https://seerepo.com/r/apache/pulsar): Apache Pulsar - distributed pub-sub messaging system
- [Netflix/eureka](https://seerepo.com/r/Netflix/eureka): AWS Service registry for resilient mid-tier load balancing and failover.

## What they share and what sets them apart

- In common: JAX-RS, com.google.inject:guice, aws-java-sdk-sts
- Only in pulsar: aws-java-sdk-bom, curator-recipes, hadoop-common, org.apache.hadoop:hadoop-hdfs-client, zookeeper, org.apache.avro:avro, com.github.ben-manes.caffeine:caffeine, github.com/apache/pulsar-client-go, RocksDB, grpc-bom, javax.ws.rs-api, jersey-container-servlet, jersey-container-servlet-core, jersey-hk2, jersey-media-json-jackson, jetty-bom, jetty-ee10-servlets, vertx-web, jakarta.servlet:jakarta.servlet-api, org.glassfish.jersey.media:jersey-media-multipart, org.eclipse.jetty:jetty-util, org.eclipse.jetty.ee10.websocket:jetty-ee10-websocket-jetty-server, org.eclipse.jetty:jetty-server, org.eclipse.jetty.websocket:jetty-websocket-jetty-api, org.eclipse.jetty.ee10:jetty-ee10-servlet, javax.servlet:javax.servlet-api, org.glassfish.jersey.core:jersey-server, org.eclipse.jetty.ee8:jetty-ee8-servlet, org.apache.felix:org.apache.felix.http.wrappers, org.eclipse.jetty.compression:jetty-compression-gzip, org.eclipse.jetty.compression:jetty-compression-server, java-jwt, jjwt-impl, jjwt-jackson, jwks-rsa, io.jsonwebtoken:jjwt-api, org.apache.kerby:kerb-simplekdc, commonmark-ext-gfm-tables, commonmark-ext-heading-anchor, org.commonmark:commonmark, jakarta.validation-api, client-java, commons-logging, docker-java-core, io.opentelemetry:opentelemetry-bom, io.prometheus:simpleclient, jcl-over-slf4j, log4j-layout-template-json, metrics-core, org.apache.logging.log4j:log4j-bom, simpleclient_hotspot, simpleclient_servlet, slf4j-bom, OpenTelemetry, org.slf4j:slf4j-api, org.apache.logging.log4j:log4j-api, io.opentelemetry:opentelemetry-sdk, org.apache.logging.log4j:log4j-core, github.com/prometheus/client_model, Prometheus, github.com/sirupsen/logrus, io.opentelemetry:opentelemetry-exporter-prometheus, io.opentelemetry.semconv:opentelemetry-semconv
- Only in eureka: javax.servlet:servlet-api, xercesImpl, org.slf4j:slf4j-log4j12

## Side by side

| | pulsar | eureka |
|---|---|---|
| Size | 1,232,950 lines written, 2,913 code files | 79,851 lines written, 287 code files |
| Who writes it | 0.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 0% of its commits signed by AI |
| Activity | Last push November 8, 2026, 15,517 commits, 15,359 stars | Last push August 24, 2026, 1,232 commits, 12,753 stars |
| Tests | 2,292 test files. 63.3% of its code files have a test that imports them | 120 test files. 54.7% 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, pulsar or eureka?

pulsar, with 1,232,950 lines written; eureka has 79,851.

The proof: [apache/pulsar's code at commit 1b6377e](https://github.com/apache/pulsar/tree/1b6377e26427990a9243000ab2c5a4b9ae488b3f)

### Which has more GitHub stars, pulsar or eureka?

pulsar, with 15,359 stars; eureka has 12,753.

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

### Which has more tests, pulsar or eureka?

pulsar, with 2,292 test files; eureka has 120.

The proof: [apache/pulsar's code at commit 1b6377e](https://github.com/apache/pulsar/tree/1b6377e26427990a9243000ab2c5a4b9ae488b3f)

### Which was updated more recently, pulsar or eureka?

pulsar: its last push was on November 8, 2026, and eureka's on August 24, 2026.

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

### Which has more commits signed by AI, pulsar or eureka?

pulsar: an AI signed 0.2% of its commits, with Claude Code, GitHub Copilot, and Cursor.

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

## Sources

- apache/pulsar: Read on November 8, 2026, at commit 1b6377e (https://github.com/apache/pulsar/tree/1b6377e26427990a9243000ab2c5a4b9ae488b3f)
- Netflix/eureka: Read on November 10, 2026, at commit 793de0a (https://github.com/Netflix/eureka/tree/793de0a7e7f8200e4da45a08217a5a8b811f1b0a)

## 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.