[FB-1398] Mainline etcd (#2049)

* use mainline etcd-io dependencies, not forks

this commit does lots of things around clustering with goal of increasing stability.

- upgrades from molecula/etcd to go.etcd.io/etcd@v3.5.4
- upgrades from seebs/bbolt to go.etcd.io/bbolt@v1.3.6
- update tests to use unix sockets for etcd cluster communication
    - this is what etcd uses for a lot of internal testing, so if their devs think
      it's a valid test, we can probably accept that
- cleanup etcd node-watcher shutdown process

Co-authored-by: tgruben <tgruben@gmail.com>

* moved random query to another repo

it had weird dependency issues with upgrading to mainline etcd bc of the vegeta dep
so we removed it bc no one really uses it anyway

we got this error message:
```
github.com/molecula/featurebase/v3/cmd/random-query imports
	github.com/tsenart/vegeta/v12/lib tested by
	github.com/tsenart/vegeta/v12/lib.test imports
	github.com/streadway/quantile tested by
	github.com/streadway/quantile.test imports
	.: "." is relative, but relative import paths are not supported in module mode
```

* add cleanup to EtcdUnixSocket test util

Co-authored-by: reesporte <reesedporter@gmail.com>

cmd/random-query/main.go

@@ -1,596 +0,0 @@
-// Copyright 2021 Molecula Corp. All rights reserved.
-package main
-
-import (
-	"context"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"math"
-	"math/rand"
-	nethttp "net/http"
-
-	"os"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/gogo/protobuf/proto"
-
-	pilosa "github.com/molecula/featurebase/v3"
-	"github.com/molecula/featurebase/v3/client"
-	fb_proto "github.com/molecula/featurebase/v3/encoding/proto"
-	"github.com/molecula/featurebase/v3/pb"
-	"github.com/molecula/featurebase/v3/pql"
-	"github.com/molecula/featurebase/v3/vprint"
-	"github.com/pkg/errors"
-	vegeta "github.com/tsenart/vegeta/v12/lib"
-)
-
-// RandomQueryConfig
-type RandomQueryConfig struct {
-	HostPort     string
-	TreeDepth    int
-	QueryCount   int
-	Verbose      bool
-	GenerateOnly bool
-	NumRuns      int
-	TimeFromArg  string
-	TimeToArg    string
-	TimeFrom     time.Time
-	TimeTo       time.Time
-	TimeRange    int64
-	Index        string
-	QPM          int
-	Seed         int
-	SrcFile      string
-	Duration     time.Duration
-	Target       vegeta.Target
-
-	IndexMap map[string]*Features
-
-	API  *pilosa.API
-	Info []*pilosa.IndexInfo
-
-	BitmapFunc []string
-
-	Rnd *rand.Rand
-}
-
-type API interface {
-
-	// InternalClient
-	Schema(ctx context.Context) ([]*pilosa.IndexInfo, error)
-	Query(ctx context.Context, index string, queryRequest *pilosa.QueryRequest) (*pilosa.QueryResponse, error)
-
-	// API for contrast; just a little different:
-	//Schema(ctx context.Context) []*IndexInfo
-	//Query(ctx context.Context, req *pilosa.QueryRequest) (pilosa.QueryResponse, error)
-}
-
-// have to wrap because the ugly little differences between InternalClient and API
-type wrapper struct {
-	api *pilosa.API
-}
-
-func (w *wrapper) Schema(ctx context.Context) ([]*pilosa.IndexInfo, error) {
-	return w.api.Schema(ctx, false)
-}
-
-func (w *wrapper) Query(ctx context.Context, index string, queryRequest *pilosa.QueryRequest) (*pilosa.QueryResponse, error) {
-	r, err := w.api.Query(ctx, queryRequest)
-	return &r, err
-}
-
-func wrapApiToInternalClient(api *pilosa.API) *wrapper {
-	return &wrapper{api: api}
-}
-
-// These times are copied from the "kitchen sink" data generator to serve as defaults.
-var defaultEndTime = time.Date(2020, time.May, 4, 12, 2, 28, 0, time.UTC)
-var defaultStartTime = defaultEndTime.Add(-5 * 365 * 24 * time.Hour)
-
-// call DefineFlags before myflags.Parse()
-func (cfg *RandomQueryConfig) DefineFlags(fs *flag.FlagSet) {
-	fs.StringVar(&cfg.HostPort, "hostport", "localhost:10101", "host:port of pilosa to run random queries on.")
-	fs.IntVar(&cfg.TreeDepth, "max-nesting-depth", 1, "depth of random queries to generate.")
-	fs.IntVar(&cfg.QueryCount, "queries-per-request", 1, "number of random queries to generate")
-	fs.IntVar(&cfg.NumRuns, "number-reports", 1, "number of reports generate ")
-	fs.IntVar(&cfg.Seed, "seed", int(time.Now().Unix()), "RNG seed, defaults to current time")
-	fs.DurationVar(&cfg.Duration, "metrics-period", 10*time.Second, "size of time window on metrics reporting, default 10s")
-	fs.StringVar(&cfg.Index, "index", "i", "index to run queries against")
-	fs.IntVar(&cfg.QPM, "qpm", 10, "number of current requests per minute to simulate, default 10")
-	fs.BoolVar(&cfg.Verbose, "v", false, "show queries as they are generated")
-	fs.BoolVar(&cfg.GenerateOnly, "generate-only", false, "only generate do not run package")
-	fs.StringVar(&cfg.TimeFromArg, "time.from", defaultStartTime.Format(time.RFC3339), "starting time for time fields (format: 2006-01-02T15:04:05Z07:00)")
-	fs.StringVar(&cfg.TimeToArg, "time.to", defaultEndTime.Format(time.RFC3339), "starting time for time fields (format: 2006-01-02T15:04:05Z07:00)")
-	fs.StringVar(&cfg.SrcFile, "query-file", "", "use pql contained in this file for query batch instead of generating")
-}
-
-// call c.ValidateConfig() after myflags.Parse()
-func (c *RandomQueryConfig) ValidateConfig() error {
-	if c.TreeDepth < 1 {
-		return fmt.Errorf("-d depth must be 1 or greater; saw %v", c.TreeDepth)
-	}
-	if c.QueryCount < 0 {
-		return fmt.Errorf("-n count must be 0 or greater; saw %v", c.QueryCount)
-	}
-	var err error
-	c.TimeFrom, err = time.Parse(time.RFC3339, c.TimeFromArg)
-	if err != nil {
-		return fmt.Errorf("-time.from value couldn't be parsed: %w", err)
-	}
-	c.TimeTo, err = time.Parse(time.RFC3339, c.TimeToArg)
-	if err != nil {
-		return fmt.Errorf("-time.to value couldn't be parsed: %w", err)
-	}
-	c.TimeRange = int64(c.TimeTo.Sub(c.TimeFrom).Hours())
-	if c.TimeRange < 1 {
-		return fmt.Errorf("time.to (%s) should be at least one hour after time.from (%s)",
-			c.TimeToArg, c.TimeFromArg)
-	}
-	if c.QPM <= 0 {
-		return fmt.Errorf("-qpm must be positive")
-	}
-	return nil
-}
-
-var ProgramName = "random-query"
-
-func main() {
-
-	myflags := flag.NewFlagSet(ProgramName, flag.ExitOnError)
-	cfg := NewRandomQueryConfig()
-	cfg.DefineFlags(myflags)
-
-	err := myflags.Parse(os.Args[1:])
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "\n%v\n", err.Error())
-		os.Exit(1)
-	}
-	err = cfg.ValidateConfig()
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%s error: %s\n", ProgramName, err)
-		os.Exit(1)
-	}
-	err = cfg.Run()
-
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "error: %v\n", err)
-		os.Exit(1)
-	}
-}
-
-func (cfg *RandomQueryConfig) Run() (err error) {
-	remoteClient := nethttp.DefaultClient
-	cli, err := pilosa.NewInternalClient(cfg.HostPort, remoteClient, pilosa.WithSerializer(fb_proto.Serializer{}))
-	if err != nil {
-		return err
-	}
-	err = cfg.Setup(cli)
-	if err != nil {
-		return err
-	}
-	rate := vegeta.Rate{Freq: cfg.QPM, Per: time.Minute}
-	duration := cfg.Duration
-	targeter := vegeta.NewStaticTargeter(cfg.Target)
-	attacker := vegeta.NewAttacker()
-
-	for i := 0; i < cfg.NumRuns; i++ {
-		vprint.VV("================")
-		var metrics vegeta.Metrics
-		for res := range attacker.Attack(targeter, rate, duration, "Big Bang!") {
-			metrics.Add(res)
-		}
-		metrics.Close()
-		rpt := vegeta.NewTextReporter(&metrics)
-		rpt(os.Stdout)
-	}
-
-	return nil
-}
-
-type Features struct {
-	Slc           []IndexFieldRow
-	Ranges        []IndexFieldRange
-	Distinctables []IndexFieldRange
-	Stores        []IndexFieldRow
-	SlcWeight     int
-	RangeWeight   int
-}
-
-// Pick either a feature entry or a random query on a range, weighted
-// by number of features and approximate weight of ranges
-func (f *Features) RandomQuery(cfg *RandomQueryConfig) *Tree {
-	r := cfg.Rnd.Intn(f.SlcWeight + f.RangeWeight)
-	if r < f.SlcWeight {
-		return f.Slc[r].Query(cfg)
-	}
-	r = cfg.Rnd.Intn(len(f.Ranges))
-	return f.Ranges[r].Query(cfg)
-}
-
-func NewRandomQueryConfig() *RandomQueryConfig {
-	return &RandomQueryConfig{
-		IndexMap: make(map[string]*Features),
-	}
-}
-
-type IndexFieldRow struct {
-	Index    string
-	Field    string
-	RowID    uint64
-	RowKey   string
-	IsRowKey bool
-	HasTime  bool
-	IsInt    bool
-}
-
-func (fea *IndexFieldRow) Query(cfg *RandomQueryConfig) *Tree {
-	fromTo := ""
-	// 5% of queries on a time field will use the standard view
-	// anyway.
-	if fea.HasTime && cfg.Rnd.Int63n(20) != 0 {
-		startHours := (cfg.Rnd.Int63n(cfg.TimeRange - 1))
-		endHours := cfg.Rnd.Int63n(cfg.TimeRange-startHours) + 1 + startHours
-		startTime := cfg.TimeFrom.Add(time.Duration(startHours) * time.Hour)
-		endTime := cfg.TimeFrom.Add(time.Duration(endHours) * time.Hour)
-		fromTo = fmt.Sprintf(", from=%s, to=%s",
-			startTime.Format(pilosaTimeFmt),
-			endTime.Format(pilosaTimeFmt))
-	}
-	if fea.IsRowKey {
-		return &Tree{S: fmt.Sprintf(`Row(%v="%v"%s)`, fea.Field, fea.RowKey, fromTo)}
-	}
-	return &Tree{S: fmt.Sprintf("Row(%v=%v%s)", fea.Field, fea.RowID, fromTo)}
-}
-
-type IndexFieldRange struct {
-	Index           string
-	Field           string
-	Min, Max, Scale int64
-	ScaleDiv        float64
-	Range           uint64
-}
-
-// We want to pick one of (1) a single-operation filter, (2) a
-// between-filter of some kind.
-// So, that's one of <=, >=, ==, !=, >, <, or
-// one of [<, <], [<, <=], [<=, <=], [<=, <].
-var binaryOps = []string{
-	"<=", ">=", "==", "!=", "<", ">",
-}
-
-func (i *IndexFieldRange) Query(cfg *RandomQueryConfig) *Tree {
-	r := cfg.Rnd.Int63n(10)
-	// this is unevenly weighted, but there's no Uint64N, and
-	// Int63n can't represent the whole range.
-	v1 := cfg.Rnd.Uint64() % i.Range
-	v2 := cfg.Rnd.Uint64() % i.Range
-	if v1 > v2 {
-		v1, v2 = v2, v1
-	}
-	v1 = v1 + uint64(i.Min)
-	v2 = v2 + uint64(i.Min)
-	var v1s, v2s string
-	if i.Scale != 0 {
-		v1s = fmt.Sprintf("%.*f", i.Scale, float64(int64(v1))/i.ScaleDiv)
-		v2s = fmt.Sprintf("%.*f", i.Scale, float64(int64(v2))/i.ScaleDiv)
-	} else {
-		v1s = strconv.FormatInt(int64(v1), 10)
-		v2s = strconv.FormatInt(int64(v2), 10)
-	}
-	if r < 4 {
-		lte := "<="
-		op1 := lte[:1+(r&1)]
-		op2 := lte[:1+((r>>1)&1)]
-		return &Tree{S: fmt.Sprintf("Row(%s %s %s %s %s)",
-			v1s, op1, i.Field, op2, v2s)}
-	} else {
-		if cfg.Rnd.Int63n(2) == 1 {
-			v1s = v2s
-		}
-		return &Tree{S: fmt.Sprintf("Row(%s %s %s)", i.Field, binaryOps[r-4], v1s)}
-	}
-}
-
-// Run a RandomQuery takes a list of RowIDFeatures and ColumnKeyObjects
-// and spits back a PQL query
-//
-func (cfg *RandomQueryConfig) Setup(api API) (err error) {
-	if cfg.SrcFile != "" {
-		return cfg.buildPayload()
-	}
-	ctx := context.Background()
-	cfg.Info, err = api.Schema(ctx)
-	if err != nil {
-		return err
-	}
-	foundIntField := false
-	any := false
-	for i, ii := range cfg.Info {
-		if ii.Name == cfg.Index {
-			any = true
-			_ = i
-			for k, fld := range ii.Fields {
-				_ = k
-				switch fld.Options.Type {
-				case "set", "mutex", "time":
-					pql := fmt.Sprintf("Rows(%v)", fld.Name)
-
-					res, err := api.Query(ctx, ii.Name, &pilosa.QueryRequest{Index: ii.Name, Query: pql})
-					vprint.PanicOn(err)
-					switch x := res.Results[0].(type) {
-					case *pilosa.RowIdentifiers:
-						cfg.AddResponse(ii.Name, fld.Name, x, fld.Options.Type == "time", fld.Options.Type == "set")
-					case pilosa.RowIdentifiers:
-						cfg.AddResponse(ii.Name, fld.Name, &x, fld.Options.Type == "time", fld.Options.Type == "set")
-					}
-				case "int":
-					foundIntField = true
-					fallthrough
-				case "decimal":
-					cfg.AddIntField(ii.Name, fld.Name, fld.Options.Min, fld.Options.Max, fld.Options.Scale, fld.Options.Type == "decimal")
-				default:
-					vprint.AlwaysPrintf("ignoring field %q: unhandled type %q\n", fld.Name, fld.Options.Type)
-				}
-			}
-		}
-	}
-	if !any {
-		return errors.New(fmt.Sprintf("index %v not found", cfg.Index))
-	}
-	cfg.BitmapFunc = []string{"Union", "Intersect", "Xor", "Not", "Difference"}
-	if foundIntField {
-		cfg.BitmapFunc = append(cfg.BitmapFunc, "Distinct")
-	}
-	cfg.Rnd = rand.New(rand.NewSource(int64(cfg.Seed)))
-	return cfg.buildPayload()
-}
-
-func (cfg *RandomQueryConfig) buildPayload() error {
-	var request strings.Builder
-	if cfg.SrcFile != "" {
-		b, err := ioutil.ReadFile(cfg.SrcFile) // just pass the file name
-		if err != nil {
-			return err
-		}
-		request.WriteString(string(b))
-	} else {
-
-		for i := 0; i < cfg.QueryCount; i++ {
-			pql, err := cfg.GenQuery(cfg.Index)
-			if err != nil {
-				return err
-			}
-			request.WriteString(pql)
-		}
-	}
-	//TODO (twg) tls support
-	path := fmt.Sprintf("http://%s/index/%s/query", cfg.HostPort, cfg.Index)
-	header := nethttp.Header{
-		"Content-Type": []string{"application/x-protobuf"},
-		"Accept":       []string{"application/x-protobuf"},
-		"PQL-Version":  []string{client.PQLVersion},
-	}
-
-	req := &pb.QueryRequest{
-		Query: request.String(),
-	}
-	vprint.VV("%v", request.String())
-	if cfg.GenerateOnly {
-		// just output the PQL and exit
-		os.Exit(0)
-	}
-	payload, err := proto.Marshal(req)
-	if err != nil {
-		return errors.Wrap(err, "marshaling request to protobuf")
-	}
-	cfg.Target = vegeta.Target{
-		Method: "POST",
-		URL:    path,
-		Body:   payload,
-		Header: header,
-	}
-	return nil
-}
-func (cfg *RandomQueryConfig) AddResponse(index, field string, x *pilosa.RowIdentifiers, hasTime bool, isSet bool) {
-	storeID := uint64(0)
-	for _, rowID := range x.Rows {
-		cfg.AddFeature(index, field, rowID, "", false, hasTime)
-		storeID = rowID
-	}
-	storeKey := ""
-	for _, rowKey := range x.Keys {
-		cfg.AddFeature(index, field, 0, rowKey, true, hasTime)
-		storeKey = rowKey
-	}
-	idx := cfg.IndexMap[index]
-	if isSet {
-		if storeID > 0 {
-			idx.Stores = append(idx.Stores, IndexFieldRow{
-				Index: index,
-				Field: field,
-				RowID: storeID + 1,
-			})
-		}
-		if storeKey != "" {
-			idx.Stores = append(idx.Stores, IndexFieldRow{
-				Index:    index,
-				Field:    field,
-				RowKey:   storeKey + "_1",
-				IsRowKey: true,
-			})
-
-		}
-	}
-}
-
-const maxEffectiveRange = 1000000
-
-func (cfg *RandomQueryConfig) AddIntField(index, field string, min, max pql.Decimal, scale int64, decimal bool) {
-	f, ok := cfg.IndexMap[index]
-	if !ok {
-		f = &Features{}
-		cfg.IndexMap[index] = f
-	}
-
-	effectiveRange := uint64(max.Value) - uint64(min.Value) + 1
-	// if you have INT64_MAX and INT64_MIN, effectiveRange is 1<<64, which
-	// wraps to 0. Anything closer together will be fine. We accept the loss
-	// of accuracy in the range from not representing quite the full value
-	// in that edge case.
-	if effectiveRange == 0 {
-		effectiveRange--
-	}
-
-	// we assume that the Value of the field is already scaled, I guess?
-	newRange := IndexFieldRange{
-		Index:    index,
-		Field:    field,
-		Min:      min.Value,
-		Max:      max.Value,
-		Scale:    scale,
-		ScaleDiv: math.Pow(10, float64(scale)),
-		Range:    effectiveRange,
-	}
-	f.Ranges = append(f.Ranges, newRange)
-	if !decimal {
-		f.Distinctables = append(f.Distinctables, newRange)
-	}
-	// We want to add more values for larger int fields, but the
-	// default KitchenSink field has a range of 1<<64 which would make
-	// it completely dominate weights, so...
-	if effectiveRange > maxEffectiveRange {
-		effectiveRange = maxEffectiveRange
-	}
-	f.RangeWeight += int(effectiveRange)
-}
-
-func (cfg *RandomQueryConfig) GenQuery(index string) (pql string, err error) {
-	tree := cfg.GenTree(index, cfg.TreeDepth)
-	pql = tree.ToPQL()
-
-	dice := cfg.Rnd.Intn(9)
-	if dice == 3 { // 1 in 9 of getting a store
-		idx := cfg.IndexMap[index]
-		if len(idx.Stores) > 0 {
-			i := cfg.Rnd.Intn(len(idx.Stores))
-			fr := idx.Stores[i]
-			var key string
-			if fr.IsRowKey {
-				key = fmt.Sprintf(`%v="%v"`, fr.Field, fr.RowKey)
-				c := strings.LastIndex(fr.RowKey, "_")
-				n, err := strconv.Atoi(fr.RowKey[c+1:])
-				vprint.PanicOn(err)
-				n += 1
-				fr.RowKey = fmt.Sprintf("%v%v", fr.RowKey[:c+1], n)
-			} else {
-				key = fmt.Sprintf("%v=%v", fr.Field, fr.RowID)
-				fr.RowID = fr.RowID + 1
-			}
-			idx.Stores[i] = fr
-			pql = fmt.Sprintf("Store(%v,%v)Count(Row(%v))", pql, key, key)
-			return
-		}
-	}
-	pql = fmt.Sprintf("Count(%v)", pql)
-	return
-}
-
-type Tree struct {
-	Chd  []*Tree
-	S    string
-	Args []string // Extra args to pass after children, such as a field for Distinct.
-}
-
-func (tr *Tree) StringIndent(ind int) (s string) {
-	spc := strings.Repeat("    ", ind)
-	spc1 := strings.Repeat("    ", ind+1)
-	var chds []string
-	leaf := true
-	if len(tr.Chd) == 0 {
-		// leaf
-	} else {
-		leaf = false
-		for _, chd := range tr.Chd {
-			chds = append(chds, chd.StringIndent(ind+1))
-		}
-	}
-	if leaf {
-		s += fmt.Sprintf("%v %v\n", spc1, tr.S)
-	} else {
-		for i, c := range chds {
-			if i == 0 {
-				s += fmt.Sprintf("%v %v\n%v", spc, tr.S, c)
-			} else {
-				s += fmt.Sprintf("%v", c)
-			}
-		}
-	}
-	return
-}
-
-const pilosaTimeFmt = "2006-01-02T15:04"
-
-func (cfg *RandomQueryConfig) GenTree(index string, depth int) (tr *Tree) {
-	features := cfg.IndexMap[index]
-	if depth == 0 {
-		return features.RandomQuery(cfg)
-	}
-
-	r := cfg.Rnd.Intn(len(cfg.BitmapFunc))
-	f := cfg.BitmapFunc[r]
-	tr = &Tree{S: f}
-	numChild := 2
-	switch f {
-	case "Union", "Intersect", "Xor":
-		numChild = cfg.Rnd.Intn(8) + 2
-	case "Not":
-		numChild = 1
-	case "Difference":
-		numChild = 2
-	case "Distinct":
-		numChild = 1
-		r = cfg.Rnd.Intn(len(features.Distinctables))
-		tr.Args = append(tr.Args, fmt.Sprintf("field=%s", features.Distinctables[r].Field))
-	}
-	for i := 0; i < numChild; i++ {
-		tr.Chd = append(tr.Chd, cfg.GenTree(index, depth-1))
-	}
-	return
-}
-
-func (tr *Tree) ToPQL() (s string) {
-	if len(tr.Chd) == 0 {
-		// leaf
-		return tr.S
-	}
-
-	var chds []string
-	for _, c := range tr.Chd {
-		chds = append(chds, c.ToPQL())
-	}
-	// If we had no extra args, this does nothing.
-	chds = append(chds, tr.Args...)
-	all := strings.Join(chds, ", ")
-	return fmt.Sprintf("%v(%v)", tr.S, all)
-}
-
-func (cfg *RandomQueryConfig) AddFeature(index, field string, rowID uint64, rowKey string, isRowKey bool, hasTime bool) {
-
-	f, ok := cfg.IndexMap[index]
-	if !ok {
-		f = &Features{}
-		cfg.IndexMap[index] = f
-	}
-	f.Slc = append(f.Slc, IndexFieldRow{
-		Index:    index,
-		Field:    field,
-		RowID:    rowID,
-		RowKey:   rowKey,
-		IsRowKey: isRowKey,
-		HasTime:  hasTime,
-	})
-	f.SlcWeight++
-}

cmd/random-query/main_test.go

@@ -1,152 +0,0 @@
-// Copyright 2021 Molecula Corp. All rights reserved.
-package main
-
-import (
-	"context"
-	"math/rand"
-	"strconv"
-	"testing"
-
-	pilosa "github.com/molecula/featurebase/v3"
-	"github.com/molecula/featurebase/v3/boltdb"
-	"github.com/molecula/featurebase/v3/server"
-	"github.com/molecula/featurebase/v3/test"
-	. "github.com/molecula/featurebase/v3/vprint" // nolint:staticcheck
-)
-
-func Test_RandomQuery(t *testing.T) {
-
-	cfg := NewRandomQueryConfig()
-
-	nNodes := 1
-	nReplicas := 1
-
-	name := t.Name()
-	var nodeid []string
-	for i := 0; i < nNodes; i++ {
-		// work around a bug in the test.MustRunCluster that corrupts
-		// the .topology file if we only join name with one "_" underscore.
-		nodeid = append(nodeid, name+"__"+strconv.Itoa(i))
-	}
-
-	c := test.MustRunCluster(t, nNodes,
-		[]server.CommandOption{
-			server.OptCommandServerOptions(
-				pilosa.OptServerNodeID(nodeid[0]),
-				pilosa.OptServerOpenTranslateStore(boltdb.OpenTranslateStore),
-				pilosa.OptServerOpenTranslateReader(pilosa.GetOpenTranslateReaderFunc(nil)),
-				pilosa.OptServerReplicaN(nReplicas),
-			)},
-	)
-	defer c.Close()
-
-	var nodes []*test.Command
-	var dirs []string
-	for i := 0; i < nNodes; i++ {
-		nd := c.GetNode(i)
-		nodes = append(nodes, nd)
-		dirs = append(dirs, nd.Server.Holder().Path())
-	}
-	_ = dirs
-
-	ctx := context.Background()
-
-	indexes := []string{"rick"}
-	fieldName := []string{"f"}
-	idx := make([]*pilosa.Index, len(indexes))
-	field := make([]*pilosa.Field, len(indexes))
-
-	var err error
-
-	for i := range indexes {
-
-		idx[i], err = nodes[0].API.CreateIndex(ctx, indexes[i], pilosa.IndexOptions{Keys: true, TrackExistence: true})
-		if err != nil {
-			t.Fatalf("creating index: %v", err)
-		}
-		if idx[i].CreatedAt() == 0 {
-			t.Fatal("index createdAt is empty")
-		}
-
-		field[i], err = nodes[0].API.CreateField(ctx, indexes[i], fieldName[i], pilosa.OptFieldTypeSet(pilosa.DefaultCacheType, 100))
-		if err != nil {
-			t.Fatalf("creating field: %v", err)
-		}
-		if field[i].CreatedAt() == 0 {
-			t.Fatal("field createdAt is empty")
-		}
-	}
-
-	timestamp := int64(0)
-
-	for i := range indexes {
-
-		// Generate some keyed records.
-		rowIDs := []uint64{}
-		timestamps := []int64{}
-		N := 10
-		for j := 1; j <= N; j++ {
-			rowIDs = append(rowIDs, uint64(j))
-			timestamps = append(timestamps, timestamp)
-		}
-
-		var colKeys []string
-		switch i {
-		case 0:
-			// Keys are sharded so ordering is not guaranteed.
-			colKeys = []string{"col10", "col8", "col9", "col6", "col7", "col4", "col5", "col2", "col3", "col1"}
-			colKeys = colKeys[:N]
-		case 1:
-			colKeys = []string{"col11", "col12"}
-			N = len(colKeys)
-			rowIDs = rowIDs[:N]
-			timestamps = timestamps[:N]
-		}
-
-		// Import data with keys to the primary and verify that it gets
-		// translated and forwarded to the owner of shard 0 (node1; because of offsetModHasher)
-		req := &pilosa.ImportRequest{
-			Index:          indexes[i],
-			IndexCreatedAt: idx[i].CreatedAt(),
-			Field:          fieldName[i],
-			FieldCreatedAt: field[i].CreatedAt(),
-
-			// even though this says Shard: 0, that won't matter. The column keys
-			// get hashed and that decides the actual shard.
-			Shard:      0,
-			RowIDs:     rowIDs,
-			ColumnKeys: colKeys,
-			Timestamps: timestamps,
-		}
-		//vv("rowIDs = '%#v'", rowIDs)
-		//vv("colKeys = '%#v'", colKeys)
-
-		qcx := nodes[0].API.Txf().NewQcx()
-
-		if err := nodes[0].API.Import(ctx, qcx, req); err != nil {
-			t.Fatal(err)
-		}
-		PanicOn(qcx.Finish())
-		//qcx.Reset()
-	}
-	// end of setup.
-	cfg.Index = indexes[0]
-	PanicOn(cfg.Setup(wrapApiToInternalClient(nodes[0].API)))
-
-	for j := 0; j < 4; j++ {
-		index := indexes[rand.Intn(len(indexes))]
-
-		pql, err := cfg.GenQuery(index)
-		PanicOn(err)
-
-		//vv("pql = '%v'", pql)
-
-		// Query node0.
-		res, err := nodes[0].API.Query(ctx, &pilosa.QueryRequest{Index: index, Query: pql})
-		if err != nil {
-			t.Fatal(err)
-		}
-		_ = res
-		//vv("success on pql = '%v'; res='%v'", pql, res.Results[0])
-	}
-}

etcd/embed.go

@@ -18,14 +18,14 @@ import (
 	"github.com/molecula/featurebase/v3/logger"
 	"github.com/molecula/featurebase/v3/topology"
 	"github.com/pkg/errors"
-	"go.etcd.io/etcd/clientv3"
-	"go.etcd.io/etcd/clientv3/clientv3util"
-	"go.etcd.io/etcd/embed"
-	"go.etcd.io/etcd/etcdserver"
-	"go.etcd.io/etcd/etcdserver/api/v3client"
-	"go.etcd.io/etcd/mvcc/mvccpb"
-	"go.etcd.io/etcd/pkg/transport"
+	"go.etcd.io/etcd/api/v3/mvccpb"
+	"go.etcd.io/etcd/client/pkg/v3/transport"
+	clientv3 "go.etcd.io/etcd/client/v3"
+	clientv3util "go.etcd.io/etcd/client/v3/clientv3util"
 	"go.etcd.io/etcd/pkg/types"
+	"go.etcd.io/etcd/server/v3/embed"
+	"go.etcd.io/etcd/server/v3/etcdserver"
+	"go.etcd.io/etcd/server/v3/etcdserver/api/v3client"
 )
 
 type Options struct {
@@ -49,8 +49,7 @@ type Options struct {
 	LPeerSocket   []*net.TCPListener
 	LClientSocket []*net.TCPListener
 
-	BootstrapTimeout time.Duration
-	UnsafeNoFsync    bool `toml:"no-fsync"`
+	UnsafeNoFsync bool `toml:"no-fsync"`
 }
 
 var (
@@ -74,7 +73,8 @@ const (
 )
 
 var (
-	etcdLeaderChanged = etcdserver.ErrLeaderChanged.Error()
+	etcdLeaderChanged   = etcdserver.ErrLeaderChanged.Error()
+	errEtcdShuttingDown = errors.New("etcd shutting down")
 )
 
 // nodeData is an internal tracker of the data we're keeping about
@@ -118,6 +118,7 @@ type Etcd struct {
 
 	// We have a watcher running. watchCancel() cancels its context.
 	watchCancel func()
+	closeWatch  chan struct{}
 
 	// knownNodes and sortedNodes get updated by data coming in from
 	// watchers. Any change to the contents of a *topology.Node here
@@ -151,6 +152,9 @@ func NewEtcd(opt Options, logger logger.Logger, replicas int) *Etcd {
 
 // Close implements io.Closer
 func (e *Etcd) Close() error {
+	if e.closeWatch != nil {
+		close(e.closeWatch)
+	}
 	if e.watchCancel != nil {
 		e.watchCancel()
 	}
@@ -226,7 +230,7 @@ func (e *Etcd) retryClient(fn func(cli *clientv3.Client) error) (err error) {
 				break
 			}
 			// check that the request hasn't timed out. this can happen with either of these errors
-			if !strings.Contains(msg, "etcdserver: request timed out") && !strings.Contains(msg, "context deadline exceeded") {
+			if !strings.Contains(msg, "etcdserver: request timed out") && !strings.Contains(msg, "context deadline exceeded") && !strings.Contains(msg, errEtcdShuttingDown.Error()) {
 				// not a known error, also not a wrapped timeout
 				return errors.Wrap(err, "non-retryable error")
 			}
@@ -255,13 +259,11 @@ func (e *Etcd) retryClient(fn func(cli *clientv3.Client) error) (err error) {
 
 func parseOptions(opt Options) *embed.Config {
 	cfg := embed.NewConfig()
-	cfg.Debug = false // true gives data races on grpc.EnableTracing in etcd
 	cfg.LogLevel = "error"
 	cfg.Logger = "zap"
 	cfg.Name = opt.Name
 	cfg.Dir = opt.Dir
 	cfg.InitialClusterToken = opt.ClusterName
-	cfg.BootstrapTimeout = opt.BootstrapTimeout
 	cfg.LCUrls = types.MustNewURLs([]string{opt.LClientURL})
 	cfg.UnsafeNoFsync = opt.UnsafeNoFsync
 	if opt.AClientURL != "" {
@@ -275,15 +277,6 @@ func parseOptions(opt Options) *embed.Config {
 	} else {
 		cfg.APUrls = cfg.LPUrls
 	}
-
-	lps := make([]*net.TCPListener, len(opt.LPeerSocket))
-	copy(lps, opt.LPeerSocket)
-	cfg.LPeerSocket = lps
-
-	lcs := make([]*net.TCPListener, len(opt.LPeerSocket))
-	copy(lcs, opt.LClientSocket)
-	cfg.LClientSocket = lcs
-
 	if opt.InitCluster != "" {
 		cfg.InitialCluster = opt.InitCluster
 		cfg.ClusterState = embed.ClusterStateFlagNew
@@ -293,7 +286,6 @@ func parseOptions(opt Options) *embed.Config {
 
 	if opt.ClusterURL != "" {
 		cfg.ClusterState = embed.ClusterStateFlagExisting
-
 		cli, err := clientv3.NewFromURL(opt.ClusterURL)
 		if err != nil {
 			panic(err)
@@ -377,6 +369,7 @@ func (e *Etcd) Start(ctx context.Context) (_ disco.InitialClusterState, err erro
 func (e *Etcd) startHeartbeatAndWatcher(ctx context.Context) error {
 	key := heartbeatPrefix + e.e.Server.ID().String()
 	e.heartbeatLeasedKV = newLeasedKV(e, key, e.options.HeartbeatTTL)
+	e.closeWatch = make(chan struct{})
 
 	if err := e.heartbeatLeasedKV.Start(string(disco.NodeStateStarting)); err != nil {
 		return errors.Wrap(err, "startHeartbeat: starting a new heartbeat")
@@ -678,34 +671,40 @@ func (e *Etcd) watchNodesOnce(ctx context.Context, cli *clientv3.Client) (err er
 	// currently seen, we don't want one equal to it.
 	minRev := e.nodeRev + 1
 	e.nodeMu.Unlock()
-	for resp := range cli.Watch(ctx, nodePrefix, clientv3.WithPrefix(), clientv3.WithRev(minRev)) {
-		if err := resp.Err(); err != nil {
-			return err
-		}
-		// lock the node mutex for this whole process of updating so
-		// we never see partial updates; everything that comes into the
-		// watcher as a single message will be processed atomically.
-		e.nodeMu.Lock()
-		for _, ev := range resp.Events {
-			switch ev.Type {
-			case mvccpb.PUT:
-				err := e.putNodeData(ev.Kv.Key, ev.Kv.Value, ev.Kv.ModRevision)
-				if err != nil {
-					e.logger.Printf("put event: %v", err)
-				}
-			case mvccpb.DELETE:
-				err := e.deleteNodeData(ev.Kv.Key, ev.Kv.ModRevision)
-				if err != nil {
-					e.logger.Printf("delete event: %v", err)
-				}
-			default:
-				e.logger.Printf("watchp %q: unknown event %#v", e.options.Name, ev)
-			}
-		}
-		e.nodeMu.Unlock()
+	watcher := cli.Watch(ctx, nodePrefix, clientv3.WithPrefix(), clientv3.WithRev(minRev))
+	for {
+		select {
 
+		case <-e.closeWatch:
+			return errEtcdShuttingDown
+		case resp := <-watcher:
+			if err := resp.Err(); err != nil {
+				return err
+			}
+			// lock the node mutex for this whole process of updating so
+			// we never see partial updates; everything that comes into the
+			// watcher as a single message will be processed atomically.
+			e.nodeMu.Lock()
+			for _, ev := range resp.Events {
+				switch ev.Type {
+				case mvccpb.PUT:
+					err := e.putNodeData(ev.Kv.Key, ev.Kv.Value, ev.Kv.ModRevision)
+					if err != nil {
+						e.logger.Printf("put event: %v", err)
+					}
+				case mvccpb.DELETE:
+					err := e.deleteNodeData(ev.Kv.Key, ev.Kv.ModRevision)
+					if err != nil {
+						e.logger.Printf("delete event: %v", err)
+					}
+				default:
+					e.logger.Printf("watchp %q: unknown event %#v", e.options.Name, ev)
+				}
+			}
+			e.nodeMu.Unlock()
+
+		}
 	}
-	return nil
 }
 
 // WatchNodes monitors changes to /heartbeat/, /resizing/, and /metadata/;

etcd/embed_test.go

@@ -0,0 +1,45 @@
+package etcd
+
+import (
+	"net/url"
+	"testing"
+	"time"
+
+	pilosa "github.com/molecula/featurebase/v3"
+	"go.etcd.io/etcd/server/v3/embed"
+)
+
+func TestRestartEtcd(t *testing.T) {
+	cfg := embed.NewConfig()
+	cfg.Dir = "default.etcd"
+	curl, _ := url.Parse(pilosa.EtcdUnixSocket(t))
+	cfg.LPUrls = append(cfg.LPUrls, *curl)
+	curl, _ = url.Parse(pilosa.EtcdUnixSocket(t))
+	cfg.LCUrls = append(cfg.LCUrls, *curl)
+	e, err := embed.StartEtcd(cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	select {
+	case <-e.Server.ReadyNotify():
+		t.Logf("Server is ready!")
+	case <-time.After(60 * time.Second):
+		e.Server.Stop() // trigger a shutdown
+		t.Logf("Server took too long to start!")
+	}
+	e.Server.Stop()
+	e.Close()
+
+	e, err = embed.StartEtcd(cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	select {
+	case <-e.Server.ReadyNotify():
+		t.Logf("Server is ready!")
+	case <-time.After(60 * time.Second):
+		e.Server.Stop() // trigger a shutdown
+		t.Logf("Server took too long to start!")
+	}
+	e.Close()
+}

etcd/leasedkv.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/molecula/featurebase/v3/disco"
 	"github.com/pkg/errors"
-	"go.etcd.io/etcd/clientv3"
-	"go.etcd.io/etcd/clientv3/clientv3util"
+	clientv3 "go.etcd.io/etcd/client/v3"
+	"go.etcd.io/etcd/client/v3/clientv3util"
 )
 
 // leasedKV is an etcd key and value attached to a lease. It can be used to detect if a node went down.
@@ -99,6 +99,8 @@ func (l *leasedKV) create(initValue string) (<-chan *clientv3.LeaseKeepAliveResp
 func (l *leasedKV) consumeLease(ch <-chan *clientv3.LeaseKeepAliveResponse) {
 	for {
 		select {
+		case <-l.e.closeWatch:
+			return
 		case _, ok := <-ch:
 			if ok {
 				continue

etcd/leasedkv_test.go

@@ -9,48 +9,28 @@ import (
 	"testing"
 	"time"
 
+	pilosa "github.com/molecula/featurebase/v3"
 	"github.com/molecula/featurebase/v3/disco"
 	"github.com/molecula/featurebase/v3/logger"
 	"github.com/molecula/featurebase/v3/testhook"
 	"github.com/pkg/errors"
-	"go.etcd.io/etcd/embed"
-	"go.etcd.io/etcd/etcdserver/api/v3client"
+	"go.etcd.io/etcd/server/v3/embed"
+	"go.etcd.io/etcd/server/v3/etcdserver/api/v3client"
+
 	"go.etcd.io/etcd/pkg/types"
 )
 
 const initVal = "test"
 const newVal = "newValue"
 
-// listenerWithURL builds a TCP listener and corresponding http://localhost:%d
-// URL, and returns those. Identical to the copy in /test, except we can't
-// import that because it imports us.
-func listenerWithURL() (listener *net.TCPListener, url string, err error) {
-	l, err := net.Listen("tcp", "localhost:0")
-	if err != nil {
-		return listener, url, err
-	}
-	listener = l.(*net.TCPListener)
-	port := listener.Addr().(*net.TCPAddr).Port
-	url = fmt.Sprintf("http://localhost:%d", port)
-	return listener, url, err
-}
-
 func TestLeasedKv(t *testing.T) {
 	cfg := embed.NewConfig()
 
-	clientListener, clientURL, err := listenerWithURL()
-	if err != nil {
-		t.Fatal(errors.Wrap(err, "creating client listener"))
-	}
-	peerListener, peerURL, err := listenerWithURL()
-	if err != nil {
-		t.Fatal(errors.Wrap(err, "creating peer listener"))
-	}
+	clientURL := pilosa.EtcdUnixSocket(t)
+	peerURL := pilosa.EtcdUnixSocket(t)
 	cfg.LPUrls = types.MustNewURLs([]string{peerURL})
-	cfg.LPeerSocket = []*net.TCPListener{peerListener}
 	cfg.APUrls = types.MustNewURLs([]string{peerURL})
 	cfg.LCUrls = types.MustNewURLs([]string{clientURL})
-	cfg.LClientSocket = []*net.TCPListener{clientListener}
 	cfg.ACUrls = types.MustNewURLs([]string{clientURL})
 	cfg.InitialCluster = cfg.Name + "=" + peerURL
 
@@ -125,3 +105,16 @@ func TestLeasedKv(t *testing.T) {
 		t.Fatal("expected error:", disco.ErrNoResults, "obtained:", err)
 	}
 }
+
+// listenerWithURL builds a TCP listener and corresponding http://localhost:%d
+// URL, and returns those.
+func listenerWithURL() (listener *net.TCPListener, url string, err error) {
+	l, err := net.Listen("tcp", "localhost:0")
+	if err != nil {
+		return listener, url, err
+	}
+	listener = l.(*net.TCPListener)
+	port := listener.Addr().(*net.TCPAddr).Port
+	url = fmt.Sprintf("http://localhost:%d", port)
+	return listener, url, err
+}

go.mod

@@ -1,9 +1,5 @@
 module github.com/molecula/featurebase/v3
 
-replace go.etcd.io/etcd => github.com/molecula/etcd v0.0.0-20210930172242-ad94b354f72c
-
-replace go.etcd.io/bbolt => github.com/seebs/bbolt v0.0.0-20210930181431-2ea708af0554
-
 require (
 	github.com/CAFxX/gcnotifier v0.0.0-20190112062741-224a280d589d
 	github.com/DataDog/datadog-go v2.2.0+incompatible
@@ -14,15 +10,13 @@ require (
 	github.com/cespare/xxhash v1.1.0
 	github.com/davecgh/go-spew v1.1.1
 	github.com/desertbit/timer v0.0.0-20180107155436-c41aec40b27f // indirect
-	github.com/dustin/go-humanize v1.0.0 // indirect
 	github.com/felixge/fgprof v0.9.1
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/go-test/deep v1.0.7
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang-jwt/jwt v3.2.2+incompatible
-	github.com/golang/protobuf v1.3.3
+	github.com/golang/protobuf v1.5.2
 	github.com/google/go-cmp v0.5.5
-	github.com/google/uuid v1.1.4 // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20200217142428-fce0ec30dd00 // indirect
 	github.com/gorilla/handlers v1.3.0
 	github.com/gorilla/mux v1.7.0
@@ -34,37 +28,37 @@ require (
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/pelletier/go-toml v1.4.0
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.0.0
-	github.com/prometheus/client_model v0.1.0
+	github.com/prometheus/client_golang v1.11.1
+	github.com/prometheus/client_model v0.2.0
 	github.com/prometheus/prom2json v1.3.0
 	github.com/rakyll/statik v0.1.7
 	github.com/remyoudompheng/bigfft v0.0.0-20190728182440-6a916e37a237 // indirect
 	github.com/rs/cors v1.7.0 // indirect
 	github.com/satori/go.uuid v1.2.0
 	github.com/shirou/gopsutil/v3 v3.21.9
-	github.com/spf13/cobra v1.1.1
+	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.7.0
-	github.com/tsenart/vegeta/v12 v12.8.4
 	github.com/uber/jaeger-client-go v2.25.0+incompatible
 	github.com/uber/jaeger-lib v2.4.0+incompatible // indirect
 	github.com/zeebo/blake3 v0.1.1
-	go.etcd.io/bbolt v1.3.5
-	go.etcd.io/etcd v0.0.0-20201125193152-8a03d2e9614b
-	golang.org/x/crypto v0.0.0-20201217014255-9d1352758620 // indirect
+	go.etcd.io/bbolt v1.3.6
+	go.etcd.io/etcd v3.3.27+incompatible
+	go.etcd.io/etcd/api/v3 v3.5.4
+	go.etcd.io/etcd/client/pkg/v3 v3.5.4
+	go.etcd.io/etcd/client/v3 v3.5.4
+	go.etcd.io/etcd/server/v3 v3.5.4
 	golang.org/x/exp v0.0.0-20201008143054-e3b2a7f2fdc7
 	golang.org/x/mod v0.5.1
-	golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f // indirect
-	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
+	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
+	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
 	golang.org/x/sys v0.0.0-20220111092808-5a964db01320 // indirect
-	golang.org/x/text v0.3.7 // indirect
-	google.golang.org/grpc v1.28.0
+	google.golang.org/grpc v1.38.0
 	gopkg.in/yaml.v2 v2.4.0
 	modernc.org/mathutil v1.0.0
 	modernc.org/strutil v1.0.0
-	sigs.k8s.io/yaml v1.2.0 // indirect
 	vitess.io/vitess v3.0.0-rc.3.0.20190602171040-12bfde34629c+incompatible
 )
 

go.sum

@@ -4,6 +4,7 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
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@@ -118,40 +133,36 @@ github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzq
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@@ -162,9 +173,7 @@ github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OI
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@@ -176,17 +185,16 @@ github.com/gorilla/mux v1.7.0 h1:tOSd0UKHQd6urX6ApfOn4XdBMY6Sh1MfxV3kmaazO+U=
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@@ -218,25 +226,29 @@ github.com/improbable-eng/grpc-web v0.13.0 h1:7XqtaBWaOCH0cVGKHyvhtcuo6fgW32Y10y
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@@ -436,6 +488,8 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
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@@ -444,6 +498,7 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
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@@ -461,16 +516,20 @@ golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -494,37 +554,49 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -576,35 +651,61 @@ google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRn
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-google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.28.0 h1:bO/TA4OxCOummhSf10siHuG7vJOiwh7SpRpFZDkOgl4=
-google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
+google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
+google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -614,11 +715,8 @@ modernc.org/mathutil v1.0.0 h1:93vKjrJopTPrtTNpZ8XIovER7iCIH1QU7wNbOQXC60I=
 modernc.org/mathutil v1.0.0/go.mod h1:wU0vUrJsVWBZ4P6e7xtFJEhFSNsfRLJ8H458uRjg03k=
 modernc.org/strutil v1.0.0 h1:XVFtQwFVwc02Wk+0L/Z/zDDXO81r5Lhe6iMKmGX3KhE=
 modernc.org/strutil v1.0.0/go.mod h1:lstksw84oURvj9y3tn8lGvRxyRC1S2+g5uuIzNfIOBs=
-pgregory.net/rapid v0.3.3 h1:jCjBsY4ln4Atz78QoBWxUEvAHaFyNDQg9+WU62aCn1U=
-pgregory.net/rapid v0.3.3/go.mod h1:UYpPVyjFHzYBGHIxLFoupi8vwk6rXNzRY9OMvVxFIOU=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
 vitess.io/vitess v3.0.0-rc.3.0.20190602171040-12bfde34629c+incompatible h1:GWnLrAdetgJM0Co5bwwczO49iFZBSInpyGAT77BP9Y0=

server/server.go

@@ -677,10 +677,6 @@ func (m *Command) Close() error {
 			}
 		}
 
-		// prevent the closed sockets from being re-injected into etcd.
-		m.Config.Etcd.LPeerSocket = nil
-		m.Config.Etcd.LClientSocket = nil
-
 		err := eg.Wait()
 		_ = testhook.Closed(pilosa.NewAuditor(), m, nil)
 		close(m.done)

test/cluster.go

@@ -547,6 +547,7 @@ func newCluster(tb testing.TB, size int, opts ...[]server.CommandOption) (*Clust
 		}
 		m := NewCommandNode(tb, commandOpts...)
 		m.Config.ImportWorkerPoolSize = 2
+
 		cluster.Nodes[i] = m
 	}
 

test/disco.go

@@ -6,8 +6,8 @@ import (
 	"net"
 	"strings"
 	"testing"
-	"time"
 
+	pilosa "github.com/molecula/featurebase/v3"
 	"github.com/molecula/featurebase/v3/etcd"
 	"github.com/molecula/featurebase/v3/server"
 	"github.com/molecula/featurebase/v3/testhook"
@@ -67,14 +67,6 @@ func GetPortsGenConfigs(tb testing.TB, nodes []*Command) error {
 		if err != nil {
 			return errors.Wrap(err, "creating temp directory")
 		}
-		clientListener, clientURL, err := listenerWithURL()
-		if err != nil {
-			return errors.Wrap(err, "creating client listener")
-		}
-		peerListener, peerURL, err := listenerWithURL()
-		if err != nil {
-			return errors.Wrap(err, "creating peer listener")
-		}
 		grpcListener, grpcUrl, err := listenerWithURL()
 		if err != nil {
 			return errors.Wrap(err, "creating gRPC listener")
@@ -88,17 +80,16 @@ func GetPortsGenConfigs(tb testing.TB, nodes []*Command) error {
 		config.Cluster.Name = clusterName
 		config.BindGRPC = grpcUrl
 		config.GRPCListener = grpcListener
+		clientURL := pilosa.EtcdUnixSocket(tb)
+		peerURL := pilosa.EtcdUnixSocket(tb)
 		config.Etcd = etcd.Options{
-			Dir:              discoDir,
-			LClientURL:       clientURL,
-			AClientURL:       clientURL,
-			LPeerURL:         peerURL,
-			APeerURL:         peerURL,
-			HeartbeatTTL:     60,
-			LPeerSocket:      []*net.TCPListener{peerListener},
-			LClientSocket:    []*net.TCPListener{clientListener},
-			BootstrapTimeout: 50 * time.Millisecond,
-			UnsafeNoFsync:    true,
+			Dir:           discoDir,
+			LClientURL:    clientURL,
+			AClientURL:    clientURL,
+			LPeerURL:      peerURL,
+			APeerURL:      peerURL,
+			HeartbeatTTL:  60,
+			UnsafeNoFsync: true,
 		}
 		peerUrls[i] = fmt.Sprintf("%s=%s", name, peerURL)
 	}
@@ -117,10 +108,8 @@ func GenPortsConfig(tb testing.TB, ports []Ports) []*server.Config {
 		name := fmt.Sprintf("server%d", i)
 		clusterName := "cluster-abc123"
 
-		lsnC, portC := ports[i].LsnC, ports[i].PortC
-		lClientURL := fmt.Sprintf("http://localhost:%d", portC)
-		lsnP, portP := ports[i].LsnP, ports[i].PortP
-		lPeerURL := fmt.Sprintf("http://localhost:%d", portP)
+		lClientURL := pilosa.EtcdUnixSocket(tb)
+		lPeerURL := pilosa.EtcdUnixSocket(tb)
 
 		discoDir := ""
 		if d, err := testhook.TempDir(tb, "disco."); err == nil {
@@ -132,16 +121,13 @@ func GenPortsConfig(tb testing.TB, ports []Ports) []*server.Config {
 			BindGRPC:     fmt.Sprintf(":%d", ports[i].Grpc),
 			GRPCListener: ports[i].LsnG,
 			Etcd: etcd.Options{
-				Dir:              discoDir,
-				LClientURL:       lClientURL,
-				AClientURL:       lClientURL,
-				LPeerURL:         lPeerURL,
-				APeerURL:         lPeerURL,
-				HeartbeatTTL:     5,
-				LPeerSocket:      []*net.TCPListener{lsnP},
-				LClientSocket:    []*net.TCPListener{lsnC},
-				BootstrapTimeout: 50 * time.Millisecond,
-				UnsafeNoFsync:    true,
+				Dir:           discoDir,
+				LClientURL:    lClientURL,
+				AClientURL:    lClientURL,
+				LPeerURL:      lPeerURL,
+				APeerURL:      lPeerURL,
+				HeartbeatTTL:  5,
+				UnsafeNoFsync: true,
 			},
 		}
 		cfgs[i].Cluster.Name = clusterName

util.go

@@ -2,7 +2,6 @@
 package pilosa
 
 // util.go: a place for generic, reusable utilities.
-
 import (
 	"fmt"
 	"os"
@@ -10,11 +9,16 @@ import (
 	"path/filepath"
 	"reflect"
 	"strings"
+	"sync"
+	"testing"
 	"time"
 
 	"github.com/shirou/gopsutil/v3/mem"
 )
 
+var clientPort = os.Getpid()
+var muClientPort = sync.Mutex{}
+
 // LeftShifted16MaxContainerKey is 0xffffffffffff0000. It is similar
 // to the roaring.maxContainerKey  0x0000ffffffffffff, but
 // shifted 16 bits to the left so its domain is the full [0, 2^64) bit space.
@@ -102,3 +106,20 @@ func GetDiskUsage(path string) (DiskUsage, error) {
 	})
 	return DiskUsage{size}, err
 }
+
+// EtcdUnixSocket returns a url for use in test etcd clusters.
+func EtcdUnixSocket(tb testing.TB) string {
+	muClientPort.Lock()
+	defer func() {
+		clientPort++
+		muClientPort.Unlock()
+	}()
+	addr := fmt.Sprintf("fake:%d", clientPort)
+	tb.Cleanup(func() {
+		err := os.Remove(addr)
+		if err != nil {
+			tb.Logf("could not remove '%s', %v", addr, err)
+		}
+	})
+	return fmt.Sprintf("unix://%s", addr)
+}