Apache ZooKeeper

Clone this repo:
  1. a30acd2 ZOOKEEPER-4037: Closing autoCloseable resource with try-with-resources block by lan · 17 hours ago master
  2. fc28f4e ZOOKEEPER-4186: update the developer list by maoling · 2 days ago
  3. a4d7586 ZOOKEEPER-4188: add a doc about whoami CLI by maoling · 3 days ago
  4. 62e29cc ZOOKEEPER-3943: Zookeeper Inspector throwing NullPointerExceptions and not displaying properly by brentwritescode · 3 days ago
  5. e7d67da ZOOKEEPER-4191: Work around missing executable bits in source release tarball by Damien Diederen · 3 days ago

Apache ZooKeeper GitHub Actions CI Travis CI Maven Central License

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For the latest information about Apache ZooKeeper, please visit our website at:


and our wiki, at:


Packaging/release artifacts

Either downloaded from https://zookeeper.apache.org/releases.html or found in zookeeper-assembly/target directory after building the project with maven.


    Contains all the source files which can be built by running:
    mvn clean install

    To generate an aggregated apidocs for zookeeper-server and zookeeper-jute:
    mvn javadoc:aggregate
    (generated files will be at target/site/apidocs)


    Contains all the jar files required to run ZooKeeper
    Full documentation can also be found in the docs folder

As of version 3.5.5, the parent, zookeeper and zookeeper-jute artifacts are deployed to the central repository after the release is voted on and approved by the Apache ZooKeeper PMC:


Java 8

If you are going to compile with Java 1.8, you should use a recent release at u211 or above.


We always welcome new contributors to the project! See How to Contribute for details on how to submit patch through pull request and our contribution workflow.