Esempio n. 1
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func commandVtGateExecuteShards(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	tabletType := subFlags.String("tablet_type", "master", "tablet type to query")
	keyspace := subFlags.String("keyspace", "", "keyspace to send query to")
	shardsStr := subFlags.String("shards", "", "comma-separated list of shards to send query to")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateExecuteShards command")
	}
	t, err := parseTabletType(*tabletType, []pb.TabletType{pb.TabletType_MASTER, pb.TabletType_REPLICA, pb.TabletType_RDONLY})
	if err != nil {
		return err
	}
	var shards []string
	if *shardsStr != "" {
		shards = strings.Split(*shardsStr, ",")
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout)
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	qr, err := vtgateConn.ExecuteShards(ctx, subFlags.Arg(0), *keyspace, shards, *bindVariables, t)
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	return printJSON(wr, qr)
}
Esempio n. 2
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func commandVtTabletBegin(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <tablet_alias> argument is required for the VtTabletBegin command")
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}

	conn, err := tabletconn.GetDialer()(ctx, tabletInfo.Tablet, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}
	defer conn.Close()

	transactionID, err := conn.Begin(ctx)
	if err != nil {
		return fmt.Errorf("Begin failed: %v", err)
	}
	result := map[string]int64{
		"transaction_id": transactionID,
	}
	return printJSON(wr.Logger(), result)
}
Esempio n. 3
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func commandVtGateSplitQuery(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	splitColumn := subFlags.String("split_column", "", "force the use of this column to split the query")
	splitCount := subFlags.Int("split_count", 16, "number of splits to generate")
	keyspace := subFlags.String("keyspace", "", "keyspace to send query to")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateSplitQuery command")
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout, "")
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	r, err := vtgateConn.SplitQuery(ctx, *keyspace, subFlags.Arg(0), *bindVariables, *splitColumn, int64(*splitCount))
	if err != nil {
		return fmt.Errorf("SplitQuery failed: %v", err)
	}
	return printJSON(wr.Logger(), r)
}
Esempio n. 4
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func commandVtGateSplitQuery(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	splitCount := subFlags.Int("split_count", 16, "number of splits to generate")
	keyspace := subFlags.String("keyspace", "", "keyspace to send query to")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateSplitQuery command")
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout)
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	r, err := vtgateConn.SplitQuery(ctx, *keyspace, tproto.BoundQuery{
		Sql:           subFlags.Arg(0),
		BindVariables: *bindVariables,
	}, *splitCount)
	if err != nil {
		return fmt.Errorf("SplitQuery failed: %v", err)
	}
	wr.Logger().Printf("%v\n", jscfg.ToJSON(r))
	return nil
}
Esempio n. 5
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func commandEmergencyReparentShard(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	waitSlaveTimeout := subFlags.Duration("wait_slave_timeout", 30*time.Second, "time to wait for slaves to catch up in reparenting")
	keyspaceShard := subFlags.String("keyspace_shard", "", "keyspace/shard of the shard that needs to be reparented")
	newMaster := subFlags.String("new_master", "", "alias of a tablet that should be the new master")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() == 2 {
		// Legacy syntax: "<keyspace/shard> <tablet alias>".
		if *newMaster != "" {
			return fmt.Errorf("cannot use legacy syntax and flag -new_master for action EmergencyReparentShard at the same time")
		}
		*keyspaceShard = subFlags.Arg(0)
		*newMaster = subFlags.Arg(1)
	} else if subFlags.NArg() != 0 {
		return fmt.Errorf("action EmergencyReparentShard requires -keyspace_shard=<keyspace/shard> -new_master=<tablet alias>")
	}

	keyspace, shard, err := topoproto.ParseKeyspaceShard(*keyspaceShard)
	if err != nil {
		return err
	}
	tabletAlias, err := topoproto.ParseTabletAlias(*newMaster)
	if err != nil {
		return err
	}
	return wr.EmergencyReparentShard(ctx, keyspace, shard, tabletAlias, *waitSlaveTimeout)
}
Esempio n. 6
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func commandVtTabletRollback(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 2 {
		return fmt.Errorf("the <tablet_alias> and <transaction_id> arguments are required for the VtTabletRollback command")
	}
	transactionID, err := strconv.ParseInt(subFlags.Arg(1), 10, 64)
	if err != nil {
		return err
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}

	conn, err := tabletconn.GetDialer()(tabletInfo.Tablet, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}
	defer conn.Close(ctx)

	return conn.Rollback(ctx, &querypb.Target{
		Keyspace:   tabletInfo.Tablet.Keyspace,
		Shard:      tabletInfo.Tablet.Shard,
		TabletType: tabletInfo.Tablet.Type,
	}, transactionID)
}
Esempio n. 7
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func commandVtGateExecute(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	tabletType := subFlags.String("tablet_type", "master", "tablet type to query")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateExecute command")
	}
	t, err := parseTabletType(*tabletType, []topo.TabletType{topo.TYPE_MASTER, topo.TYPE_REPLICA, topo.TYPE_RDONLY})
	if err != nil {
		return err
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout)
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	qr, err := vtgateConn.Execute(ctx, subFlags.Arg(0), *bindVariables, t)
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	wr.Logger().Printf("%v\n", jscfg.ToJSON(qr))
	return nil
}
Esempio n. 8
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// ApplyWithError populates the flag given the flag set and environment
func (f DurationFlag) ApplyWithError(set *flag.FlagSet) error {
	if f.EnvVar != "" {
		for _, envVar := range strings.Split(f.EnvVar, ",") {
			envVar = strings.TrimSpace(envVar)
			if envVal, ok := syscall.Getenv(envVar); ok {
				envValDuration, err := time.ParseDuration(envVal)
				if err != nil {
					return fmt.Errorf("could not parse %s as duration for flag %s: %s", envVal, f.Name, err)
				}

				f.Value = envValDuration
				break
			}
		}
	}

	eachName(f.Name, func(name string) {
		if f.Destination != nil {
			set.DurationVar(f.Destination, name, f.Value, f.Usage)
			return
		}
		set.Duration(name, f.Value, f.Usage)
	})

	return nil
}
Esempio n. 9
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func commandVtGateExecute(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	tabletType := subFlags.String("tablet_type", "master", "tablet type to query")
	json := subFlags.Bool("json", false, "Output JSON instead of human-readable table")

	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateExecute command")
	}
	t, err := parseTabletType(*tabletType, []topodatapb.TabletType{topodatapb.TabletType_MASTER, topodatapb.TabletType_REPLICA, topodatapb.TabletType_RDONLY})
	if err != nil {
		return err
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout)
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	qr, err := vtgateConn.Execute(ctx, subFlags.Arg(0), *bindVariables, t)
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	if *json {
		return printJSON(wr.Logger(), qr)
	}
	printQueryResult(loggerWriter{wr.Logger()}, qr)
	return nil
}
Esempio n. 10
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func startCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) {
	waitTime := subFlags.Duration("wait_time", mysqlctl.MysqlWaitTime, "how long to wait for startup")
	subFlags.Parse(args)

	if err := mysqld.Start(*waitTime); err != nil {
		log.Fatalf("failed start mysql: %v", err)
	}
}
Esempio n. 11
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func shutdownCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) {
	waitTime := subFlags.Duration("wait-time", mysqlctl.MysqlWaitTime, "how long to wait for shutdown")
	subFlags.Parse(args)

	if mysqlErr := mysqlctl.Shutdown(mysqld, true, *waitTime); mysqlErr != nil {
		relog.Fatal("failed shutdown mysql: %v", mysqlErr)
	}
}
Esempio n. 12
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func initCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) {
	waitTime := subFlags.Duration("wait-time", mysqlctl.MysqlWaitTime, "how long to wait for startup")
	subFlags.Parse(args)

	if err := mysqlctl.Init(mysqld, *waitTime); err != nil {
		relog.Fatal("failed init mysql: %v", err)
	}
}
Esempio n. 13
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func initCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) {
	waitTime := subFlags.Duration("wait_time", mysqlctl.MysqlWaitTime, "how long to wait for startup")
	bootstrapArchive := subFlags.String("bootstrap_archive", "mysql-db-dir.tbz", "name of bootstrap archive within vitess/data/bootstrap directory")
	skipSchema := subFlags.Bool("skip_schema", false, "don't apply initial schema")
	subFlags.Parse(args)

	if err := mysqld.Init(*waitTime, *bootstrapArchive, *skipSchema); err != nil {
		log.Fatalf("failed init mysql: %v", err)
	}
}
Esempio n. 14
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func startCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 2*time.Minute, "how long to wait for startup")
	subFlags.Parse(args)

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Start(ctx); err != nil {
		return fmt.Errorf("failed start mysql: %v", err)
	}
	return nil
}
Esempio n. 15
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func initCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 2*time.Minute, "how long to wait for startup")
	initDBSQLFile := subFlags.String("init_db_sql_file", "", "path to .sql file to run after mysql_install_db")
	subFlags.Parse(args)

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Init(ctx, *initDBSQLFile); err != nil {
		return fmt.Errorf("failed init mysql: %v", err)
	}
	return nil
}
Esempio n. 16
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func teardownCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 2*time.Minute, "how long to wait for shutdown")
	force := subFlags.Bool("force", false, "will remove the root directory even if mysqld shutdown fails")
	subFlags.Parse(args)

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Teardown(ctx, *force); err != nil {
		return fmt.Errorf("failed teardown mysql (forced? %v): %v", *force, err)
	}
	return nil
}
Esempio n. 17
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func initCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 2*time.Minute, "how long to wait for startup")
	bootstrapArchive := subFlags.String("bootstrap_archive", "mysql-db-dir.tbz", "name of bootstrap archive within vitess/data/bootstrap directory")
	subFlags.Parse(args)

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Init(ctx, *bootstrapArchive); err != nil {
		return fmt.Errorf("failed init mysql: %v", err)
	}
	return nil
}
Esempio n. 18
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func commandVtGateExecuteKeyspaceIds(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	server := subFlags.String("server", "", "VtGate server to connect to")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vtgate client")
	tabletType := subFlags.String("tablet_type", "master", "tablet type to query")
	keyspace := subFlags.String("keyspace", "", "keyspace to send query to")
	keyspaceIDsStr := subFlags.String("keyspace_ids", "", "comma-separated list of keyspace ids (in hex) that will map into shards to send query to")
	options := subFlags.String("options", "", "execute options values as a text encoded proto of the ExecuteOptions structure")
	json := subFlags.Bool("json", false, "Output JSON instead of human-readable table")

	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <sql> argument is required for the VtGateExecuteKeyspaceIds command")
	}
	t, err := parseTabletType(*tabletType, []topodatapb.TabletType{topodatapb.TabletType_MASTER, topodatapb.TabletType_REPLICA, topodatapb.TabletType_RDONLY})
	if err != nil {
		return err
	}
	var keyspaceIDs [][]byte
	if *keyspaceIDsStr != "" {
		keyspaceIDHexs := strings.Split(*keyspaceIDsStr, ",")
		keyspaceIDs = make([][]byte, len(keyspaceIDHexs))
		for i, keyspaceIDHex := range keyspaceIDHexs {
			keyspaceIDs[i], err = hex.DecodeString(keyspaceIDHex)
			if err != nil {
				return fmt.Errorf("cannot hex-decode value %v '%v': %v", i, keyspaceIDHex, err)
			}
		}
	}
	executeOptions, err := parseExecuteOptions(*options)
	if err != nil {
		return err
	}

	vtgateConn, err := vtgateconn.Dial(ctx, *server, *connectTimeout, "")
	if err != nil {
		return fmt.Errorf("error connecting to vtgate '%v': %v", *server, err)
	}
	defer vtgateConn.Close()
	qr, err := vtgateConn.ExecuteKeyspaceIds(ctx, subFlags.Arg(0), *keyspace, keyspaceIDs, *bindVariables, t, executeOptions)
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	if *json {
		return printJSON(wr.Logger(), qr)
	}
	printQueryResult(loggerWriter{wr.Logger()}, qr)
	return nil
}
Esempio n. 19
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File: flag.go Progetto: CowLeo/gopm
func (f DurationFlag) Apply(set *flag.FlagSet) {
	if f.EnvVar != "" {
		if envVal := os.Getenv(f.EnvVar); envVal != "" {
			envValDuration, err := time.ParseDuration(envVal)
			if err == nil {
				f.Value = envValDuration
			}
		}
	}

	eachName(f.Name, func(name string) {
		set.Duration(name, f.Value, f.Usage)
	})
}
Esempio n. 20
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func commandVtTabletExecute(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	transactionID := subFlags.Int("transaction_id", 0, "transaction id to use, if inside a transaction.")
	bindVariables := newBindvars(subFlags)
	keyspace := subFlags.String("keyspace", "", "keyspace the tablet belongs to")
	shard := subFlags.String("shard", "", "shard the tablet belongs to")
	tabletType := subFlags.String("tablet_type", "unknown", "tablet type we expect from the tablet (use unknown to use sessionId)")
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	json := subFlags.Bool("json", false, "Output JSON instead of human-readable table")

	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 2 {
		return fmt.Errorf("the <tablet_alias> and <sql> arguments are required for the VtTabletExecute command")
	}
	tt, err := topoproto.ParseTabletType(*tabletType)
	if err != nil {
		return err
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}
	ep, err := topo.TabletEndPoint(tabletInfo.Tablet)
	if err != nil {
		return fmt.Errorf("cannot get EndPoint from tablet record: %v", err)
	}

	conn, err := tabletconn.GetDialer()(ctx, ep, *keyspace, *shard, tt, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}
	defer conn.Close()

	qr, err := conn.Execute(ctx, subFlags.Arg(1), *bindVariables, int64(*transactionID))
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	if *json {
		return printJSON(wr.Logger(), qr)
	}
	printQueryResult(loggerWriter{wr.Logger()}, qr)
	return nil
}
Esempio n. 21
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func commandStaleActions(wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) (string, error) {
	maxStaleness := subFlags.Duration("max-staleness", 5*time.Minute, "how long since the last modification before an action considered stale")
	purge := subFlags.Bool("purge", false, "purge stale actions")
	if err := subFlags.Parse(args); err != nil {
		return "", err
	}
	if subFlags.NArg() == 0 {
		return "", fmt.Errorf("action StaleActions requires <zk action path>")
	}
	zkts, ok := wr.TopoServer().(*zktopo.Server)
	if !ok {
		return "", fmt.Errorf("StaleActions requires a zktopo.Server")
	}
	zkPaths, err := resolveWildcards(wr, subFlags.Args())
	if err != nil {
		return "", err
	}
	var errCount sync2.AtomicInt32
	wg := sync.WaitGroup{}
	for _, apath := range zkPaths {
		wg.Add(1)
		go func(zkActionPath string) {
			defer wg.Done()
			staleActions, err := staleActions(zkts, zkActionPath, *maxStaleness)
			if err != nil {
				errCount.Add(1)
				wr.Logger().Errorf("can't check stale actions: %v %v", zkActionPath, err)
				return
			}
			for _, action := range staleActions {
				wr.Logger().Printf("%v\n", fmtAction(action))
			}
			if *purge && len(staleActions) > 0 {
				err := zkts.PurgeActions(zkActionPath, actionnode.ActionNodeCanBePurged)
				if err != nil {
					errCount.Add(1)
					wr.Logger().Errorf("can't purge stale actions: %v %v", zkActionPath, err)
					return
				}
			}
		}(apath)
	}
	wg.Wait()
	if errCount.Get() > 0 {
		return "", fmt.Errorf("some errors occurred, check the log")
	}
	return "", nil
}
Esempio n. 22
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func commandVtTabletUpdateStream(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	count := subFlags.Int("count", 1, "number of responses to wait for")
	timestamp := subFlags.Int("timestamp", 0, "timestamp to start the stream from")
	position := subFlags.String("position", "", "position to start the stream from")
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("The <tablet alias> argument is required for the VtTabletUpdateStream command.")
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}

	conn, err := tabletconn.GetDialer()(tabletInfo.Tablet, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}

	stream, err := conn.UpdateStream(ctx, &querypb.Target{
		Keyspace:   tabletInfo.Tablet.Keyspace,
		Shard:      tabletInfo.Tablet.Shard,
		TabletType: tabletInfo.Tablet.Type,
	}, *position, int64(*timestamp))
	if err != nil {
		return err
	}
	for i := 0; i < *count; i++ {
		se, err := stream.Recv()
		if err != nil {
			return fmt.Errorf("stream ended early: %v", err)
		}
		data, err := json.Marshal(se)
		if err != nil {
			wr.Logger().Errorf("cannot json-marshal structure: %v", err)
		} else {
			wr.Logger().Printf("%v\n", string(data))
		}
	}
	return nil
}
Esempio n. 23
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func commandVtTabletStreamHealth(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	count := subFlags.Int("count", 1, "number of responses to wait for")
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("The <tablet alias> argument is required for the VtTabletStreamHealth command.")
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}

	ep, err := topo.TabletEndPoint(tabletInfo.Tablet)
	if err != nil {
		return fmt.Errorf("cannot get EndPoint from tablet record: %v", err)
	}

	// pass in a non-UNKNOWN tablet type to not use sessionId
	conn, err := tabletconn.GetDialer()(ctx, ep, "", "", pb.TabletType_MASTER, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}

	stream, errFunc, err := conn.StreamHealth(ctx)
	if err != nil {
		return err
	}
	for i := 0; i < *count; i++ {
		shr, ok := <-stream
		if !ok {
			return fmt.Errorf("stream ended early: %v", errFunc())
		}
		data, err := json.Marshal(shr)
		if err != nil {
			wr.Logger().Errorf("cannot json-marshal structure: %v", err)
		} else {
			wr.Logger().Printf("%v\n", string(data))
		}
	}
	return nil
}
Esempio n. 24
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func commandVtTabletExecute(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	transactionID := subFlags.Int("transaction_id", 0, "transaction id to use, if inside a transaction.")
	bindVariables := newBindvars(subFlags)
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	options := subFlags.String("options", "", "execute options values as a text encoded proto of the ExecuteOptions structure")
	json := subFlags.Bool("json", false, "Output JSON instead of human-readable table")

	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 2 {
		return fmt.Errorf("the <tablet_alias> and <sql> arguments are required for the VtTabletExecute command")
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}
	executeOptions, err := parseExecuteOptions(*options)
	if err != nil {
		return err
	}

	conn, err := tabletconn.GetDialer()(tabletInfo.Tablet, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}
	defer conn.Close(ctx)

	qr, err := conn.Execute(ctx, &querypb.Target{
		Keyspace:   tabletInfo.Tablet.Keyspace,
		Shard:      tabletInfo.Tablet.Shard,
		TabletType: tabletInfo.Tablet.Type,
	}, subFlags.Arg(1), *bindVariables, int64(*transactionID), executeOptions)
	if err != nil {
		return fmt.Errorf("Execute failed: %v", err)
	}
	if *json {
		return printJSON(wr.Logger(), qr)
	}
	printQueryResult(loggerWriter{wr.Logger()}, qr)
	return nil
}
Esempio n. 25
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func startCmd(subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 5*time.Minute, "how long to wait for startup")
	subFlags.Parse(args)

	// There ought to be an existing my.cnf, so use it to find mysqld.
	mysqld, err := mysqlctl.OpenMysqld(uint32(*tabletUID), dbconfigFlags)
	if err != nil {
		return fmt.Errorf("failed to find mysql config: %v", err)
	}
	defer mysqld.Close()

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Start(ctx); err != nil {
		return fmt.Errorf("failed start mysql: %v", err)
	}
	return nil
}
Esempio n. 26
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func cmdQlock(subFlags *flag.FlagSet, args []string) {
	var (
		lockWaitTimeout = subFlags.Duration("lock-wait-timeout", 0, "wait for a lock for the specified duration")
	)
	subFlags.Parse(args)
	zkPath := fixZkPath(subFlags.Arg(0))
	sigRecv := make(chan os.Signal, 1)
	interrupted := make(chan struct{})
	signal.Notify(sigRecv, os.Interrupt)
	go func() {
		<-sigRecv
		close(interrupted)
	}()
	if err := zk.ObtainQueueLock(zconn, zkPath, *lockWaitTimeout, interrupted); err != nil {
		log.Fatalf("qlock: error %v: %v", zkPath, err)
	}
	fmt.Printf("qlock: locked %v\n", zkPath)
}
Esempio n. 27
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// Apply populates the flag given the flag set and environment
func (f DurationFlag) Apply(set *flag.FlagSet) {
	if f.EnvVar != "" {
		for _, envVar := range strings.Split(f.EnvVar, ",") {
			envVar = strings.TrimSpace(envVar)
			if envVal := os.Getenv(envVar); envVal != "" {
				envValDuration, err := time.ParseDuration(envVal)
				if err == nil {
					f.Value = envValDuration
					break
				}
			}
		}
	}

	eachName(f.Name, func(name string) {
		set.Duration(name, f.Value, f.Usage)
	})
}
Esempio n. 28
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func commandVtTabletBegin(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	keyspace := subFlags.String("keyspace", "", "keyspace the tablet belongs to")
	shard := subFlags.String("shard", "", "shard the tablet belongs to")
	tabletType := subFlags.String("tablet_type", "unknown", "tablet type we expect from the tablet (use unknown to use sessionId)")
	connectTimeout := subFlags.Duration("connect_timeout", 30*time.Second, "Connection timeout for vttablet client")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 1 {
		return fmt.Errorf("the <tablet_alias> argument is required for the VtTabletBegin command")
	}
	tt, err := topoproto.ParseTabletType(*tabletType)
	if err != nil {
		return err
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
	if err != nil {
		return err
	}
	ep, err := topo.TabletEndPoint(tabletInfo.Tablet)
	if err != nil {
		return fmt.Errorf("cannot get EndPoint from tablet record: %v", err)
	}

	conn, err := tabletconn.GetDialer()(ctx, ep, *keyspace, *shard, tt, *connectTimeout)
	if err != nil {
		return fmt.Errorf("cannot connect to tablet %v: %v", tabletAlias, err)
	}
	defer conn.Close()

	transactionID, err := conn.Begin(ctx)
	if err != nil {
		return fmt.Errorf("Begin failed: %v", err)
	}
	result := map[string]int64{
		"transaction_id": transactionID,
	}
	return printJSON(wr, result)
}
Esempio n. 29
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func initCmd(subFlags *flag.FlagSet, args []string) error {
	waitTime := subFlags.Duration("wait_time", 5*time.Minute, "how long to wait for startup")
	initDBSQLFile := subFlags.String("init_db_sql_file", "", "path to .sql file to run after mysql_install_db")
	subFlags.Parse(args)

	// Generate my.cnf from scratch and use it to find mysqld.
	mysqld, err := mysqlctl.CreateMysqld(uint32(*tabletUID), *mysqlSocket, int32(*mysqlPort), dbconfigFlags)
	if err != nil {
		return fmt.Errorf("failed to initialize mysql config: %v", err)
	}
	defer mysqld.Close()

	ctx, cancel := context.WithTimeout(context.Background(), *waitTime)
	defer cancel()
	if err := mysqld.Init(ctx, *initDBSQLFile); err != nil {
		return fmt.Errorf("failed init mysql: %v", err)
	}
	return nil
}
Esempio n. 30
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func commandInitShardMaster(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
	force := subFlags.Bool("force", false, "will force the reparent even if the provided tablet is not a master or the shard master")
	waitSlaveTimeout := subFlags.Duration("wait_slave_timeout", 30*time.Second, "time to wait for slaves to catch up in reparenting")
	if err := subFlags.Parse(args); err != nil {
		return err
	}
	if subFlags.NArg() != 2 {
		return fmt.Errorf("action InitShardMaster requires <keyspace/shard> <tablet alias>")
	}
	keyspace, shard, err := topoproto.ParseKeyspaceShard(subFlags.Arg(0))
	if err != nil {
		return err
	}
	tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(1))
	if err != nil {
		return err
	}
	return wr.InitShardMaster(ctx, keyspace, shard, tabletAlias, *force, *waitSlaveTimeout)
}