2aa18cafc6
With CoreDNS now supporting etcdv3 as the DNS backend, we can update our federation target to etcdv3. Users will now be able to use etcdv3 server as the federation backbone. Minio will update bucket data to etcdv3 and CoreDNS can pick that data up and serve it as bucket style DNS path.
88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package raft
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import (
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"fmt"
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pb "github.com/coreos/etcd/raft/raftpb"
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)
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type Status struct {
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ID uint64
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pb.HardState
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SoftState
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Applied uint64
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Progress map[uint64]Progress
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LeadTransferee uint64
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}
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// getStatus gets a copy of the current raft status.
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func getStatus(r *raft) Status {
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s := Status{
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ID: r.id,
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LeadTransferee: r.leadTransferee,
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}
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s.HardState = r.hardState()
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s.SoftState = *r.softState()
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s.Applied = r.raftLog.applied
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if s.RaftState == StateLeader {
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s.Progress = make(map[uint64]Progress)
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for id, p := range r.prs {
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s.Progress[id] = *p
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}
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for id, p := range r.learnerPrs {
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s.Progress[id] = *p
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}
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}
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return s
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}
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// MarshalJSON translates the raft status into JSON.
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// TODO: try to simplify this by introducing ID type into raft
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func (s Status) MarshalJSON() ([]byte, error) {
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j := fmt.Sprintf(`{"id":"%x","term":%d,"vote":"%x","commit":%d,"lead":"%x","raftState":%q,"applied":%d,"progress":{`,
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s.ID, s.Term, s.Vote, s.Commit, s.Lead, s.RaftState, s.Applied)
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if len(s.Progress) == 0 {
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j += "},"
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} else {
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for k, v := range s.Progress {
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subj := fmt.Sprintf(`"%x":{"match":%d,"next":%d,"state":%q},`, k, v.Match, v.Next, v.State)
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j += subj
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}
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// remove the trailing ","
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j = j[:len(j)-1] + "},"
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}
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j += fmt.Sprintf(`"leadtransferee":"%x"}`, s.LeadTransferee)
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return []byte(j), nil
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}
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func (s Status) String() string {
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b, err := s.MarshalJSON()
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if err != nil {
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raftLogger.Panicf("unexpected error: %v", err)
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}
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return string(b)
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}
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