mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
192f200d9e
Fixes all updates since bcwaldon sketched the original, with cleanup and into an acutal working state. The commit log follows: fix pb reference and remove unused file post rebase unbreak the migrate folder correctly detect node IDs fix snapshotting Fix previous broken snapshot Add raft log entries to the translation; fix test for all timezones. (Still in progress, but passing) Fix etcd:join and etcd:remove print more data when dumping the log Cleanup based on yichengq's comments more comments Fix the commited index based on the snapshot, if one exists detect nodeIDs from snapshot add initial tool documentation and match the semantics in the build script and main formalize migration doc rename function and clarify docs fix nil pointer fix the record conversion test add migration to test suite and fix govet
131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package etcdserver
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import (
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"crypto/sha1"
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"encoding/binary"
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"fmt"
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"log"
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"math/rand"
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"path"
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"sort"
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"time"
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"github.com/coreos/etcd/pkg/types"
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)
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// RaftAttributes represents the raft related attributes of an etcd member.
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type RaftAttributes struct {
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// TODO(philips): ensure these are URLs
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PeerURLs []string `json:"peerURLs"`
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}
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// Attributes represents all the non-raft related attributes of an etcd member.
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type Attributes struct {
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Name string `json:"name,omitempty"`
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ClientURLs []string `json:"clientURLs,omitempty"`
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}
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type Member struct {
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ID types.ID `json:"id"`
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RaftAttributes
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Attributes
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}
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// NewMember creates a Member without an ID and generates one based on the
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// name, peer URLs. This is used for bootstrapping/adding new member.
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func NewMember(name string, peerURLs types.URLs, clusterName string, now *time.Time) *Member {
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m := &Member{
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RaftAttributes: RaftAttributes{PeerURLs: peerURLs.StringSlice()},
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Attributes: Attributes{Name: name},
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}
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var b []byte
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sort.Strings(m.PeerURLs)
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for _, p := range m.PeerURLs {
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b = append(b, []byte(p)...)
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}
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b = append(b, []byte(clusterName)...)
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if now != nil {
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b = append(b, []byte(fmt.Sprintf("%d", now.Unix()))...)
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}
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hash := sha1.Sum(b)
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m.ID = types.ID(binary.BigEndian.Uint64(hash[:8]))
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return m
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}
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// PickPeerURL chooses a random address from a given Member's PeerURLs.
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// It will panic if there is no PeerURLs available in Member.
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func (m *Member) PickPeerURL() string {
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if len(m.PeerURLs) == 0 {
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log.Panicf("member should always have some peer url")
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}
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return m.PeerURLs[rand.Intn(len(m.PeerURLs))]
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}
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func (m *Member) Clone() *Member {
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if m == nil {
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return nil
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}
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mm := &Member{
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ID: m.ID,
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Attributes: Attributes{
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Name: m.Name,
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},
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}
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if m.PeerURLs != nil {
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mm.PeerURLs = make([]string, len(m.PeerURLs))
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copy(mm.PeerURLs, m.PeerURLs)
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}
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if m.ClientURLs != nil {
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mm.ClientURLs = make([]string, len(m.ClientURLs))
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copy(mm.ClientURLs, m.ClientURLs)
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}
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return mm
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}
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func memberStoreKey(id types.ID) string {
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return path.Join(storeMembersPrefix, id.String())
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}
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func MemberAttributesStorePath(id types.ID) string {
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return path.Join(memberStoreKey(id), attributesSuffix)
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}
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func mustParseMemberIDFromKey(key string) types.ID {
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id, err := types.IDFromString(path.Base(key))
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if err != nil {
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log.Panicf("unexpected parse member id error: %v", err)
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}
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return id
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}
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func removedMemberStoreKey(id types.ID) string {
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return path.Join(storeRemovedMembersPrefix, id.String())
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}
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type SortableMemberSliceByPeerURLs []*Member
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func (p SortableMemberSliceByPeerURLs) Len() int { return len(p) }
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func (p SortableMemberSliceByPeerURLs) Less(i, j int) bool {
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return p[i].PeerURLs[0] < p[j].PeerURLs[0]
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}
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func (p SortableMemberSliceByPeerURLs) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
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