OpenShift etcd
The OpenShift etcd key-value store is the most critical and sensitive OpenShift component, because all OpenShift master persistent data is kept in the etcd cluster. The good news is that etcd itself works in active/active configuration, and is installed during the initial installation. You will need to properly design your etcd cluster, so that you do not run into a situation where you are required to reinstall your etcd in order to handle a greater load. There is a general recommendation to install and configure your etcd cluster on dedicated nodes, separate from OpenShift masters, in a quantity of three, five, or seven members.
OpenShift keeps all configuration data in the etcd key-value store, so it is very important to ...
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