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32 lines
753 B
Markdown
32 lines
753 B
Markdown
## Glossary
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This document defines the various terms used in etcd documentation, command line and source code.
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### Node
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Node is an instance of raft state machine.
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It has a unique identification, and records other nodes' progress internally when it is the leader.
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### Member
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Member is an instance of etcd. It hosts a node, and provides service to clients.
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### Cluster
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Cluster consists of several members.
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The node in each member follows raft consensus protocol to replicate logs. Cluster receives proposals from members, commits them and apply to local store.
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### Peer
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Peer is another member of the same cluster.
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### Client
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Client is a caller of the cluster's HTTP API.
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### Machine (deprecated)
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The alternative of Member in etcd before 2.0
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