System limits

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etcd v3.2.17 documentation is no longer actively maintained. The version you are currently viewing is a static snapshot. For up-to-date documentation, see the latest release, v3.4.0, or the current documentation.

Request size limit

etcd is designed to handle small key value pairs typical for metadata. Larger requests will work, but may increase the latency of other requests. For the time being, etcd guarantees to support RPC requests with up to 1MB of data. In the future, the size limit may be loosened or made configurable.

Storage size limit

The default storage size limit is 2GB, configurable with --quota-backend-bytes flag; supports up to 8GB.

System limits