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Merge pull request #5651 from hashicorp/f-peers-json-info

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Update peers info with new raft config details
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Mahmood Ali 2019-05-06 11:40:35 -04:00 committed by GitHub
parent 175656ad46 92c133b905
commit 835827ebcd
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1 changed files with 41 additions and 4 deletions
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45
nomad/server.go
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@ -1470,10 +1470,47 @@ func (s *Server) ReplicationToken() string {
// location. // location.
const peersInfoContent = ` const peersInfoContent = `
As of Nomad 0.5.5, the peers.json file is only used for recovery As of Nomad 0.5.5, the peers.json file is only used for recovery
after an outage. It should be formatted as a JSON array containing the address after an outage. The format of this file depends on what the server has
and port (RPC) of each Nomad server in the cluster, like this: configured for its Raft protocol version. Please see the agent configuration
page at https://www.consul.io/docs/agent/options.html#_raft_protocol for more
["10.1.0.1:4647","10.1.0.2:4647","10.1.0.3:4647"] details about this parameter.
For Raft protocol version 2 and earlier, this should be formatted as a JSON
array containing the address and port of each Consul server in the cluster, like
this:
[
"10.1.0.1:8300",
"10.1.0.2:8300",
"10.1.0.3:8300"
]
For Raft protocol version 3 and later, this should be formatted as a JSON
array containing the node ID, address:port, and suffrage information of each
Consul server in the cluster, like this:
[
{
"id": "adf4238a-882b-9ddc-4a9d-5b6758e4159e",
"address": "10.1.0.1:8300",
"non_voter": false
},
{
"id": "8b6dda82-3103-11e7-93ae-92361f002671",
"address": "10.1.0.2:8300",
"non_voter": false
},
{
"id": "97e17742-3103-11e7-93ae-92361f002671",
"address": "10.1.0.3:8300",
"non_voter": false
}
]
The "id" field is the node ID of the server. This can be found in the logs when
the server starts up, or in the "node-id" file inside the server's data
directory.
The "address" field is the address and port of the server.
The "non_voter" field controls whether the server is a non-voter, which is used
in some advanced Autopilot configurations, please see
https://www.nomadproject.io/guides/operations/outage.html for more information. If
"non_voter" is omitted it will default to false, which is typical for most
clusters.
Under normal operation, the peers.json file will not be present. Under normal operation, the peers.json file will not be present.