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20 lines
1.1 KiB
Plaintext
20 lines
1.1 KiB
Plaintext
// Module included in the following assemblies:
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// * etcd/etcd-overview.adoc
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:_mod-docs-content-type: CONCEPT
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[id="how-etcd-works_{context}"]
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= How etcd works
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To ensure a reliable approach to cluster configuration and management, etcd uses the etcd Operator. The Operator simplifies the use of etcd on a Kubernetes container platform such as {product-title}.
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Additionally, you can use the etcd Operator to deploy and manage the etcd cluster for the {product-title} control plane. The etcd Operator manages the cluster state in the following ways:
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* Observes the cluster state by using the Kubernetes API
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* Analyzes differences between the current state and the required state
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* Corrects the differences through the etcd cluster management APIs, the Kubernetes API, or both
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[NOTE]
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====
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etcd holds the cluster state, which is constantly updated. This state is continuously persisted, which leads to a high number of small changes at high frequency. As a result, it is critical to back up the etcd cluster member with fast, low-latency I/O. For more information about best practices for etcd, see "Recommended etcd practices".
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====
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