func commandWorkflowCreate(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
if WorkflowManager == nil {
return fmt.Errorf("no workflow.Manager registered")
}
skipStart := subFlags.Bool("skip_start", false, "If set, the workflow will not be started.")
if err := subFlags.Parse(args); err != nil {
return err
}
if subFlags.NArg() < 1 {
return fmt.Errorf("the <factoryName> argument is required for the WorkflowCreate command")
}
factoryName := subFlags.Arg(0)
uuid, err := WorkflowManager.Create(ctx, factoryName, subFlags.Args()[1:])
if err != nil {
return err
}
wr.Logger().Printf("uuid: %v\n", uuid)
if !*skipStart {
return WorkflowManager.Start(ctx, uuid)
}
return nil
}
func commandSplitClone(wi *Instance, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) (Worker, error) {
online := subFlags.Bool("online", defaultOnline, "do online copy (optional approximate copy, source and destination tablets will not be put out of serving, minimizes downtime during offline copy)")
offline := subFlags.Bool("offline", defaultOffline, "do offline copy (exact copy at a specific GTID, required before shard migration, source and destination tablets will be put out of serving during copy)")
excludeTables := subFlags.String("exclude_tables", "", "comma separated list of tables to exclude")
strategy := subFlags.String("strategy", "", "which strategy to use for restore, use 'vtworker SplitClone --strategy=-help k/s' for more info")
sourceReaderCount := subFlags.Int("source_reader_count", defaultSourceReaderCount, "number of concurrent streaming queries to use on the source")
writeQueryMaxRows := subFlags.Int("write_query_max_rows", defaultWriteQueryMaxRows, "maximum number of rows per write query")
writeQueryMaxSize := subFlags.Int("write_query_max_size", defaultWriteQueryMaxSize, "maximum size (in bytes) per write query")
writeQueryMaxRowsDelete := subFlags.Int("write_query_max_rows_delete", defaultWriteQueryMaxRows, "maximum number of rows per DELETE FROM write query")
minTableSizeForSplit := subFlags.Int("min_table_size_for_split", defaultMinTableSizeForSplit, "tables bigger than this size on disk in bytes will be split into source_reader_count chunks if possible")
destinationWriterCount := subFlags.Int("destination_writer_count", defaultDestinationWriterCount, "number of concurrent RPCs to execute on the destination")
minHealthyRdonlyTablets := subFlags.Int("min_healthy_rdonly_tablets", defaultMinHealthyRdonlyTablets, "minimum number of healthy RDONLY tablets in the source and destination shard at start")
maxTPS := subFlags.Int64("max_tps", defaultMaxTPS, "if non-zero, limit copy to maximum number of (write) transactions/second on the destination (unlimited by default)")
if err := subFlags.Parse(args); err != nil {
return nil, err
}
if subFlags.NArg() != 1 {
subFlags.Usage()
return nil, fmt.Errorf("command SplitClone requires <keyspace/shard>")
}
keyspace, shard, err := topoproto.ParseKeyspaceShard(subFlags.Arg(0))
if err != nil {
return nil, err
}
var excludeTableArray []string
if *excludeTables != "" {
excludeTableArray = strings.Split(*excludeTables, ",")
}
worker, err := NewSplitCloneWorker(wr, wi.cell, keyspace, shard, *online, *offline, excludeTableArray, *strategy, *sourceReaderCount, *writeQueryMaxRows, *writeQueryMaxSize, *writeQueryMaxRowsDelete, uint64(*minTableSizeForSplit), *destinationWriterCount, *minHealthyRdonlyTablets, *maxTPS)
if err != nil {
return nil, fmt.Errorf("cannot create split clone worker: %v", err)
}
return worker, nil
}
func mainReqs(args []string, flags *flag.FlagSet) {
flags.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s %s <package-name>\n", os.Args[0], args[0])
flags.PrintDefaults()
}
file := flags.String("graphfile", "", fmt.Sprintf("Path to PyPI dependency graph file. Defaults to $GOPATH/src/github.com/beyang/cheerio/data/pypi_graph"))
flags.Parse(args[1:])
if flags.NArg() < 1 {
flags.Usage()
os.Exit(1)
}
pkg := cheerio.NormalizedPkgName(flags.Arg(0))
var pypiG *cheerio.PyPIGraph
if *file == "" {
pypiG = cheerio.DefaultPyPIGraph
} else {
var err error
pypiG, err = cheerio.NewPyPIGraph(*file)
if err != nil {
fmt.Printf("Error creating PyPI graph: %s\n", err)
os.Exit(1)
}
}
pkgReq := pypiG.Requires(pkg)
pkgReqBy := pypiG.RequiredBy(pkg)
fmt.Printf("pkg %s uses (%d):\n %s\nand is used by (%d):\n %s\n", pkg, len(pkgReq), strings.Join(pkgReq, " "), len(pkgReqBy), strings.Join(pkgReqBy, " "))
}
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)
}
// newCommandUnsub creates and returns an unsub command.
func newCommandUnsub(args []string, cli *client.Client) (command, error) {
// Create a flag set.
var flg flag.FlagSet
// Define the flags.
topicFilter := flg.String("t", "", "Topic Filter")
// Parse the flag.
if err := flg.Parse(args); err != nil {
return nil, errCmdArgsParse
}
// Create an unsub command.
cmd := &commandUnsub{
cli: cli,
unsubscribeOpts: &client.UnsubscribeOptions{
TopicFilters: [][]byte{
[]byte(*topicFilter),
},
},
}
// Return the command.
return cmd, nil
}
// Create an ephemeral node an just wait.
func cmdElock(subFlags *flag.FlagSet, args []string) error {
subFlags.Parse(args)
zkPath := fixZkPath(subFlags.Arg(0))
// Speed up case where we die nicely, otherwise you have to wait for
// the server to notice the client's demise.
sigRecv := make(chan os.Signal, 1)
signal.Notify(sigRecv, os.Interrupt)
for {
_, err := zconn.Create(zkPath, "", zookeeper.EPHEMERAL, zookeeper.WorldACL(zookeeper.PERM_ALL))
if err != nil {
return fmt.Errorf("elock: error %v: %v", zkPath, err)
}
watchLoop:
for {
_, _, watch, err := zconn.GetW(zkPath)
if err != nil {
return fmt.Errorf("elock: error %v: %v", zkPath, err)
}
select {
case <-sigRecv:
zconn.Delete(zkPath, -1)
return nil
case event := <-watch:
log.Infof("elock: event %v: %v", zkPath, event)
if !event.Ok() {
//return fmt.Errorf("elock: error %v: %v", zkPath, event)
break watchLoop
}
}
}
}
}
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)
}
func commandListBackups(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
if err := subFlags.Parse(args); err != nil {
return err
}
if subFlags.NArg() != 1 {
return fmt.Errorf("action ListBackups requires <keyspace/shard>")
}
keyspace, shard, err := topoproto.ParseKeyspaceShard(subFlags.Arg(0))
if err != nil {
return err
}
bucket := fmt.Sprintf("%v/%v", keyspace, shard)
bs, err := backupstorage.GetBackupStorage()
if err != nil {
return err
}
defer bs.Close()
bhs, err := bs.ListBackups(bucket)
if err != nil {
return err
}
for _, bh := range bhs {
wr.Logger().Printf("%v\n", bh.Name())
}
return nil
}
func commandRestoreFromBackup(ctx context.Context, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) error {
if err := subFlags.Parse(args); err != nil {
return err
}
if subFlags.NArg() != 1 {
return fmt.Errorf("The RestoreFromBackup command requires the <tablet alias> argument.")
}
tabletAlias, err := topoproto.ParseTabletAlias(subFlags.Arg(0))
if err != nil {
return err
}
tabletInfo, err := wr.TopoServer().GetTablet(ctx, tabletAlias)
if err != nil {
return err
}
stream, err := wr.TabletManagerClient().RestoreFromBackup(ctx, tabletInfo.Tablet)
if err != nil {
return err
}
for {
e, err := stream.Recv()
switch err {
case nil:
logutil.LogEvent(wr.Logger(), e)
case io.EOF:
return nil
default:
return err
}
}
}
// ParamsParser implements a command line parameters parser that takes a string
// and returns a Parameters structure in an interface. It will display the module
// help if the arguments string spell the work 'help'
func (r *run) ParamsParser(args []string) (interface{}, error) {
var (
err error
lm, nm, li, ni, ci, lp flagParam
fs flag.FlagSet
)
if len(args) < 1 || args[0] == "" || args[0] == "help" {
fmt.Println(cmd_help)
return nil, fmt.Errorf("help printed")
}
fs.Init("file", flag.ContinueOnError)
fs.Var(&lm, "lm", "see help")
fs.Var(&nm, "nm", "see help")
fs.Var(&li, "li", "see help")
fs.Var(&ni, "ni", "see help")
fs.Var(&ci, "ci", "see help")
fs.Var(&lp, "lp", "see help")
err = fs.Parse(args)
if err != nil {
return nil, err
}
var p params
p.LocalMAC = lm
p.NeighborMAC = nm
p.LocalIP = li
p.NeighborIP = ni
p.ConnectedIP = ci
p.ListeningPort = lp
r.Parameters = p
return p, r.ValidateParameters()
}
// Setup the parameters with the command line flags in args.
func (pool *Pool) Setup(fs *flag.FlagSet, args []string) error {
fs.IntVar(&pool.Capacity, "capacity", pool.Capacity, "max parallel sandboxes")
fs.StringVar(&pool.UmlPath, "uml", pool.UmlPath, "path to the UML executable")
fs.StringVar(&pool.EnvDir, "envdir", pool.EnvDir, "environments directory")
fs.StringVar(&pool.TasksDir, "tasksdir", pool.TasksDir, "tasks directory")
return fs.Parse(args)
}
func doInitialize(fs *flag.FlagSet, argv []string) error {
var (
conffile = fs.String("conf", config.DefaultConfig.Conffile, "Config file path")
apikey = fs.String("apikey", "", "API key from mackerel.io web site (Required)")
)
fs.Parse(argv)
if *apikey == "" {
// Setting apikey via environment variable should be supported or not?
return fmt.Errorf("-apikey option is required")
}
_, err := os.Stat(*conffile)
confExists := err == nil
if confExists {
conf, err := config.LoadConfig(*conffile)
if err != nil {
return fmt.Errorf("Failed to load the config file: %s", err)
}
if conf.Apikey != "" {
return apikeyAlreadySetError(*conffile)
}
}
contents := []byte(fmt.Sprintf("apikey = %q\n", *apikey))
if confExists {
cBytes, err := ioutil.ReadFile(*conffile)
if err != nil {
return err
}
contents = append(contents, cBytes...)
}
return ioutil.WriteFile(*conffile, contents, 0644)
}
// Setup the parameters with the command line flags in args.
func (job *Job) Setup(fs *flag.FlagSet, args []string) error {
taskfile := fs.String("task", "", "path to the task description (mandatory)")
inputfile := fs.String("input", "", "path to the input file (mandatory)")
fs.StringVar(&job.UmlPath, "uml", job.UmlPath, "path to the UML executable")
fs.StringVar(&job.EnvDir, "envdir", job.EnvDir, "environments directory")
fs.StringVar(&job.TasksDir, "tasksdir", job.TasksDir, "tasks directory")
if err := fs.Parse(args); err != nil {
return err
}
if len(*taskfile) == 0 || len(*inputfile) == 0 {
return errors.New("Missing task or input file")
}
taskcontent, err := ioutil.ReadFile(*taskfile)
if err != nil {
return err
}
if json.Unmarshal(taskcontent, &job.Task) != nil {
return err
}
inputcontent, err := ioutil.ReadFile(*inputfile)
if err != nil {
return err
}
job.Input = string(inputcontent)
return nil
}
// RunCommand detects the project root, parses flags and runs the Command.
func RunCommand(fs *flag.FlagSet, cmd *Command, projectroot, goroot string, args []string) error {
if cmd.AddFlags != nil {
cmd.AddFlags(fs)
}
if err := fs.Parse(args); err != nil {
fs.Usage()
os.Exit(1)
}
args = fs.Args() // reset to the remaining arguments
if projectroot == "" {
return fmt.Errorf("project root is blank")
}
root, err := FindProjectroot(projectroot)
if err != nil {
return fmt.Errorf("could not locate project root: %v", err)
}
project := gb.NewProject(root)
gb.Debugf("project root %q", project.Projectdir())
ctx, err := project.NewContext(
gb.GcToolchain(),
)
if err != nil {
return fmt.Errorf("unable to construct context: %v", err)
}
gb.Debugf("args: %v", args)
return cmd.Run(ctx, args)
}
func ParseServiceFlags(scfg *ServiceConfig, flagset *flag.FlagSet, argv []string) (config *ServiceConfig, args []string) {
rpcAddr := flagset.String("l", GetDefaultBindAddr(), "host:port to listen on for RPC")
adminAddr := flagset.String("admin", GetDefaultBindAddr(), "host:port to listen on for admin")
err := flagset.Parse(argv)
args = flagset.Args()
if err == flag.ErrHelp {
// -help was given, pass it on to caller who
// may decide to quit instead of continuing
args = append(args, "-help")
}
rpcBA, err := BindAddrFromString(*rpcAddr)
if err != nil {
panic(err)
}
adminBA, err := BindAddrFromString(*adminAddr)
if err != nil {
panic(err)
}
scfg.ServiceAddr = rpcBA
scfg.AdminAddr = adminBA
return scfg, args
}
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
}
// ParamsParser implements a command line parameter parser for the ping module
func (r *run) ParamsParser(args []string) (interface{}, error) {
var (
err error
pa params
d, p string
dp, c, t float64
fs flag.FlagSet
)
if len(args) < 1 || args[0] == "" || args[0] == "help" {
printHelp(true)
return nil, fmt.Errorf("help printed")
}
fs.Init("ping", flag.ContinueOnError)
fs.StringVar(&d, "d", "www.google.com", "see help")
fs.Float64Var(&dp, "dp", -1, "see help")
fs.StringVar(&p, "p", "icmp", "see help")
fs.Float64Var(&c, "c", 3, "see help")
fs.Float64Var(&t, "t", 5, "see help")
err = fs.Parse(args)
if err != nil {
return nil, err
}
pa.Destination = d
pa.DestinationPort = dp
pa.Protocol = p
pa.Count = c
pa.Timeout = t
r.Parameters = pa
return pa, r.ValidateParameters()
}
// newCommandSub creates and returns a sub command.
func newCommandSub(args []string, cli *client.Client) (command, error) {
// Create a flag set.
var flg flag.FlagSet
// Define the flags.
topicFilter := flg.String("t", "", "Topic Filter")
qos := flg.Uint("q", uint(mqtt.QoS0), "QoS")
// Parse the flag.
if err := flg.Parse(args); err != nil {
return nil, errCmdArgsParse
}
// Create a sub command.
cmd := &commandSub{
cli: cli,
subscribeOpts: &client.SubscribeOptions{
SubReqs: []*client.SubReq{
&client.SubReq{
TopicFilter: []byte(*topicFilter),
QoS: byte(*qos),
Handler: messageHandler,
},
},
},
}
// Return the command.
return cmd, nil
}
func (r *run) ParamsParser(args []string) (interface{}, error) {
var (
err error
drift string
fs flag.FlagSet
)
if len(args) >= 1 && args[0] == "help" {
printHelp(true)
return nil, fmt.Errorf("help printed")
}
if len(args) == 0 {
return r.Parameters, nil
}
fs.Init("time", flag.ContinueOnError)
fs.StringVar(&drift, "drift", "", "see help")
err = fs.Parse(args)
if err != nil {
return nil, err
}
_, err = time.ParseDuration(drift)
if err != nil {
return nil, fmt.Errorf("invalid drift duration. try help.")
}
r.Parameters.Drift = drift
return r.Parameters, r.ValidateParameters()
}
func NewContext(cmdName string, args []string) *cli.Context {
targetCommand := findCommand(cmdName)
flagSet := new(flag.FlagSet)
for i, _ := range targetCommand.Flags {
targetCommand.Flags[i].Apply(flagSet)
}
// move all flag args to the beginning of the list, go requires them all upfront
firstFlagIndex := -1
for index, arg := range args {
if strings.HasPrefix(arg, "-") {
firstFlagIndex = index
break
}
}
if firstFlagIndex > 0 {
args := args[0:firstFlagIndex]
flags := args[firstFlagIndex:]
flagSet.Parse(append(flags, args...))
} else {
flagSet.Parse(args[0:])
}
globalSet := new(flag.FlagSet)
return cli.NewContext(cli.NewApp(), flagSet, globalSet)
}
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)
}
func (a *app) parseArgs(fs *flag.FlagSet, args []string) error {
fs.SetOutput(a.out)
fs.Usage = func() {
fmt.Fprintf(a.out, help, args[0], args[0])
fs.PrintDefaults()
}
fs.Var(&a.typeNames, "type",
"A generated proto.Message type to generate stubs for (required, repeatable)")
fs.StringVar(&a.outFile, "out", "proto_gae.gen.go",
"The name of the output file")
fs.StringVar(&a.header, "header", copyright, "Header text to put at the top of "+
"the generated file. Defaults to the Chromium Authors copyright.")
if err := fs.Parse(args[1:]); err != nil {
return err
}
fail := errors.MultiError(nil)
if a.typeNames.Data == nil || a.typeNames.Data.Len() == 0 {
fail = append(fail, errors.New("must specify one or more -type"))
}
if !strings.HasSuffix(a.outFile, ".go") {
fail = append(fail, errors.New("-output must end with '.go'"))
}
if len(fail) > 0 {
for _, e := range fail {
fmt.Fprintln(a.out, "error:", e)
}
fmt.Fprintln(a.out)
fs.Usage()
return fail
}
return nil
}
func (r *run) ParamsParser(args []string) (interface{}, error) {
var (
fs flag.FlagSet
pkgMatch flagParam
verMatch string
)
if len(args) < 1 || args[0] == "" || args[0] == "help" {
printHelp(true)
return nil, nil
}
fs.Init("pkg", flag.ContinueOnError)
fs.Var(&pkgMatch, "name", "see help")
fs.StringVar(&verMatch, "version", "", "see help")
err := fs.Parse(args)
if err != nil {
return nil, err
}
p := newParameters()
p.PkgMatch.Matches = pkgMatch
if verMatch != "" {
p.VerMatch = verMatch
}
r.Parameters = *p
return r.Parameters, r.ValidateParameters()
}
func positionCmd(subFlags *flag.FlagSet, args []string) error {
subFlags.Parse(args)
if len(args) < 3 {
return fmt.Errorf("Not enough arguments for position operation.")
}
pos1, err := replication.DecodePosition(args[1])
if err != nil {
return err
}
switch args[0] {
case "equal":
pos2, err := replication.DecodePosition(args[2])
if err != nil {
return err
}
fmt.Println(pos1.Equal(pos2))
case "at_least":
pos2, err := replication.DecodePosition(args[2])
if err != nil {
return err
}
fmt.Println(pos1.AtLeast(pos2))
case "append":
gtid, err := replication.DecodeGTID(args[2])
if err != nil {
return err
}
fmt.Println(replication.AppendGTID(pos1, gtid))
}
return nil
}
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)
}
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
}
func multisnapshotCmd(mysqld *mysqlctl.Mysqld, subFlags *flag.FlagSet, args []string) {
concurrency := subFlags.Int("concurrency", 8, "how many compression jobs to run simultaneously")
spec := subFlags.String("spec", "-", "shard specification")
tablesString := subFlags.String("tables", "", "dump only this comma separated list of tables")
skipSlaveRestart := subFlags.Bool("skip-slave-restart", false, "after the snapshot is done, do not restart slave replication")
maximumFilesize := subFlags.Uint64("maximum-file-size", 128*1024*1024, "the maximum size for an uncompressed data file")
subFlags.Parse(args)
if subFlags.NArg() != 2 {
relog.Fatal("action multisnapshot requires <db name> <key name>")
}
shards, err := key.ParseShardingSpec(*spec)
if err != nil {
relog.Fatal("multisnapshot failed: %v", err)
}
var tables []string
if *tablesString != "" {
tables = strings.Split(*tablesString, ",")
}
filenames, err := mysqld.CreateMultiSnapshot(shards, subFlags.Arg(0), subFlags.Arg(1), tabletAddr, false, *concurrency, tables, *skipSlaveRestart, *maximumFilesize, nil)
if err != nil {
relog.Fatal("multisnapshot failed: %v", err)
} else {
relog.Info("manifest locations: %v", filenames)
}
}
// newCommandPub creates and returns a pub command.
func newCommandPub(args []string, cli *client.Client) (command, error) {
// Create a flag set.
var flg flag.FlagSet
// Define the flags.
qos := flg.Uint("q", uint(mqtt.QoS0), "QoS")
retain := flg.Bool("r", false, "Retain")
topicName := flg.String("t", "", "Topic Name")
message := flg.String("m", "", "Application Message")
// Parse the flag.
if err := flg.Parse(args); err != nil {
return nil, errCmdArgsParse
}
// Create a pub command.
cmd := &commandPub{
cli: cli,
publishOpts: &client.PublishOptions{
QoS: byte(*qos),
Retain: *retain,
TopicName: []byte(*topicName),
Message: []byte(*message),
},
}
// Return the command.
return cmd, nil
}
func commandVerticalSplitClone(wi *Instance, wr *wrangler.Wrangler, subFlags *flag.FlagSet, args []string) (Worker, error) {
tables := subFlags.String("tables", "", "comma separated list of tables to replicate (used for vertical split)")
strategy := subFlags.String("strategy", "", "which strategy to use for restore, use 'mysqlctl multirestore -strategy=-help' for more info")
sourceReaderCount := subFlags.Int("source_reader_count", defaultSourceReaderCount, "number of concurrent streaming queries to use on the source")
destinationPackCount := subFlags.Int("destination_pack_count", defaultDestinationPackCount, "number of packets to pack in one destination insert")
minTableSizeForSplit := subFlags.Int("min_table_size_for_split", defaultMinTableSizeForSplit, "tables bigger than this size on disk in bytes will be split into source_reader_count chunks if possible")
destinationWriterCount := subFlags.Int("destination_writer_count", defaultDestinationWriterCount, "number of concurrent RPCs to execute on the destination")
if err := subFlags.Parse(args); err != nil {
return nil, err
}
if subFlags.NArg() != 1 {
subFlags.Usage()
return nil, fmt.Errorf("command VerticalSplitClone requires <destination keyspace/shard>")
}
keyspace, shard, err := topo.ParseKeyspaceShardString(subFlags.Arg(0))
if err != nil {
return nil, err
}
var tableArray []string
if *tables != "" {
tableArray = strings.Split(*tables, ",")
}
worker, err := NewVerticalSplitCloneWorker(wr, wi.cell, keyspace, shard, tableArray, *strategy, *sourceReaderCount, *destinationPackCount, uint64(*minTableSizeForSplit), *destinationWriterCount)
if err != nil {
return nil, fmt.Errorf("cannot create worker: %v", err)
}
return worker, nil
}
func getCmd(flagset *flag.FlagSet) {
flagset.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: %s get [args...] key\n", os.Args[0])
flagset.PrintDefaults()
}
flagset.StringVar(&secretKeyring, "secret-keyring", DefaultConfig.SecretKeyring, "path to armored secret keyring")
flagset.Parse(os.Args[2:])
key := flagset.Arg(0)
if key == "" {
flagset.Usage()
os.Exit(1)
}
backendStore, err := getBackendStore(backendName, endpoint)
if err != nil {
log.Fatal(err)
}
log.Printf("Looking at consul node %q\n", nodeKey(key))
if plaintext {
value, err := getPlain(nodeKey(key), backendStore)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s\n", value)
return
}
value, err := getEncrypted(nodeKey(key), secretKeyring, backendStore)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s\n", value)
}