During the product installation, embedded ZooKeeper was upgraded in the following directory: installation_directory. This directory is located in a shared file system, and the installation program cannot detect if embedded ZooKeeper is in use.
If any applications, instances, or domains are using the embedded ZooKeeper during this upgrade, unpredictable application behavior can result.
Before using embedded ZooKeeper with any version of the product installed to the root installation directory, restart any applications, instances, or domains that were running during the installation.