Example #1
0
func membersFromStore(st store.Store) (map[types.ID]*Member, map[types.ID]bool) {
	members := make(map[types.ID]*Member)
	removed := make(map[types.ID]bool)
	e, err := st.Get(storeMembersPrefix, true, true)
	if err != nil {
		if isKeyNotFound(err) {
			return members, removed
		}
		plog.Panicf("get storeMembers should never fail: %v", err)
	}
	for _, n := range e.Node.Nodes {
		m, err := nodeToMember(n)
		if err != nil {
			plog.Panicf("nodeToMember should never fail: %v", err)
		}
		members[m.ID] = m
	}

	e, err = st.Get(storeRemovedMembersPrefix, true, true)
	if err != nil {
		if isKeyNotFound(err) {
			return members, removed
		}
		plog.Panicf("get storeRemovedMembers should never fail: %v", err)
	}
	for _, n := range e.Node.Nodes {
		removed[mustParseMemberIDFromKey(n.Key)] = true
	}
	return members, removed
}
Example #2
0
func clusterVersionFromStore(st store.Store) *semver.Version {
	e, err := st.Get(path.Join(StoreClusterPrefix, "version"), false, false)
	if err != nil {
		if isKeyNotFound(err) {
			return nil
		}
		plog.Panicf("unexpected error (%v) when getting cluster version from store", err)
	}
	return semver.Must(semver.NewVersion(*e.Node.Value))
}