Zookeeper – Utilities

We are using zookeeper as a central repository for our data/configuration and here are few interesting options/utilities (docker/java versions) that one may need for browsing, copying, backing it up & migrating.

Browse – 

docker run –name zkbrowser -d -p 4550:4550 mijalko/zkbrowser

docker stop zkbrowser

docker start zkbrowser

Copy data – https://github.com/ksprojects/zkcopy

1. docker pull ksprojects/zkcopy
2. docker run –rm -it ksprojects/zkcopy –source <source server:port>/test –target <dest server:port>/test
3. Java vesion – needs maven
   1. brew install maven (on mac) or install it from https://maven.apache.org/install.html
   2. download code from above zkcopy url & build it using => mvn clean install
   3. java -jar target/zkcopy.jar –source <source server:port>/test –target <dest server:port>/test

Browse/backup – https://github.com/soabase/exhibitor (not tried but worth to try)

Migrate point in time data to new servers

1. copy the last snapshot/log file from source cluster to all zk nodes in the new cluster and restart the cluster.