InterviewSolution
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What Data Is Replicated Between Consul Datacenters? |
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Answer» In general, data is not replicated between DIFFERENT Consul DATACENTERS. When a request is made for a resource in another datacenter, the LOCAL Consul servers forward an RPC request to the remote Consul servers for that resource and return the results. If the remote datacenter is not available, then those resources will also not be available, but that won't otherwise affect the local datacenter. There are some special situations where a limited subset of data can be replicated, such as with Consul's built-in ACL REPLICATION capability, or external tools LIKE consul-replicate. In general, data is not replicated between different Consul datacenters. When a request is made for a resource in another datacenter, the local Consul servers forward an RPC request to the remote Consul servers for that resource and return the results. If the remote datacenter is not available, then those resources will also not be available, but that won't otherwise affect the local datacenter. There are some special situations where a limited subset of data can be replicated, such as with Consul's built-in ACL replication capability, or external tools like consul-replicate. |
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