istio.io/content/en/faq/applications/zookeeper.md

title	description	weight	keywords
Can I run Zookeeper inside an Istio mesh?	How to run Zookeeper with Istio.	50	zookeeper

By default, Zookeeper listens on the pod IP address for communication between servers. Istio and other service meshes require localhost (127.0.0.1) to be the address to listen on.

There is a configuration parameter that can be used to change this default behavior: quorumListenOnAllIPs. This option allows Zookeeper to listen on all addresses including the localhost. Set this parameter to true by using the following command where $ZK_CONFIG_FILE is your Zookeeper configuration file.

{{< text bash >}} $ echo "quorumListenOnAllIPs=true" >> $ZK_CONFIG_FILE {{< /text >}}