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ZooKeeper Transaction Log Tools

Author: Patrick Hunt (follow me on twitter)


This project for examining a ZooKeeper server transaction log. Transaction logs are output by the server to persist data (znode) changes, not to be confused with the log4j error/debug logs.

What’s Apache ZooKeeper?

From the official site: “ZooKeeper is a high-performance coordination service for distributed applications.”

It exposes common services – such as naming, configuration management, synchronization, and group services – in a simple interface so you don’t have to write them from scratch. You can use it off-the-shelf to implement consensus, group management, leader election, and presence protocols. And you can build on it for your own, specific needs.


This project is licensed under the Apache License Version 2.0


  • Python
  • Cheetah templating package are necessary to run this
    • On ubuntu “sudo apt-get install python-cheetah”

before using the first time (or on update) run the following command

cheetah compile *.tmpl


usage here

example of typical use