A new feature in V4 is how ZooKeeper is installed.
ZooKeeper is no longer installed using a separate installer.
To install ZooKeeper only, run the required Hippotizer installer and when prompted for a serial number, just click next to continue the installation without a serial number and the software will only install ZooKeeper.
You should always use the same version of Hippotizer and ZooKeeper.
Use only Gigabit Ethernet.
*This is an older post moved from our archived support website.