Shakespeare Sonnet++ Postmortem (incident #465)
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|- What do Etcd, Consul, and Zookeeper do?|
|- Service Registration:|
|- Host, port number, and sometimes authentication credentials, protocols, versions|
|numbers, and/or environment details.|
|- Service Discovery:|
|- Ability for client application to query the central registry to learn of service location.|
|- Consistent and durable general-purpose K/V store across distributed system.|
|- Some solutions support this better than others.|
|- Based on Paxos or some derivative (i.e. Raft) algorithm to quickly converge to a consistent state.|
|- Centralized locking can be based on this K/V store.|