// Start starts the TestServer by bootstrapping an in-memory store
// (defaults to maximum of 100M). The server is started, launching the
// node RPC server and all HTTP endpoints. Use the value of
// TestServer.ServingAddr() after Start() for client connections. Use Stop()
// to shutdown the server after the test completes.
func (ts *TestServer) Start() error {
if ts.Ctx == nil {
ts.Ctx = NewTestContext()
}
var err error
ts.Server, err = NewServer(ts.Ctx, stop.NewStopper())
if err != nil {
return err
}
// Ensure we have the correct number of engines. Add in in-memory ones where
// needed. There must be at least one store/engine.
if ts.StoresPerNode < 1 {
ts.StoresPerNode = 1
}
for i := len(ts.Ctx.Engines); i < ts.StoresPerNode; i++ {
ts.Ctx.Engines = append(ts.Ctx.Engines, engine.NewInMem(proto.Attributes{}, 100<<20))
}
if !ts.SkipBootstrap {
stopper := stop.NewStopper()
_, err := BootstrapCluster("cluster-1", ts.Ctx.Engines, stopper)
if err != nil {
return util.Errorf("could not bootstrap cluster: %s", err)
}
stopper.Stop()
}
if err := ts.Server.Start(true); err != nil {
return err
}
if err := configutil.SetDefaultRangeReplicaNum(ts.db, 1); err != nil {
return err
}
return nil
}
// runStart starts the cockroach node using --stores as the list of
// storage devices ("stores") on this machine and --gossip as the list
// of "well-known" hosts used to join this node to the cockroach
// cluster via the gossip network.
func runStart(cmd *cobra.Command, args []string) {
info := util.GetBuildInfo()
log.Infof("build Vers: %s", info.Vers)
log.Infof("build Tag: %s", info.Tag)
log.Infof("build Time: %s", info.Time)
log.Infof("build Deps: %s", info.Deps)
// Default user for servers.
context.User = security.NodeUser
if context.EphemeralSingleNode {
context.Stores = "mem=1073741824"
context.GossipBootstrap = server.SelfGossipAddr
runInit(cmd, args)
} else {
if err := context.InitStores(); err != nil {
log.Errorf("failed to initialize stores: %s", err)
return
}
}
if err := context.InitNode(); err != nil {
log.Errorf("failed to initialize node: %s", err)
return
}
log.Info("starting cockroach cluster")
stopper := stop.NewStopper()
s, err := server.NewServer(context, stopper)
if err != nil {
log.Errorf("failed to start Cockroach server: %s", err)
return
}
if err := s.Start(false); err != nil {
log.Errorf("cockroach server exited with error: %s", err)
return
}
if context.EphemeralSingleNode {
// TODO(tamird): pass this to BootstrapRange rather than doing it
// at runtime. This was quicker, though.
db, clientStopper := makeDBClient()
if err := configutil.SetDefaultRangeReplicaNum(db, 1); err != nil {
log.Errorf("failed to set default replica number: %s", err)
}
clientStopper.Stop()
}
signalCh := make(chan os.Signal, 1)
signal.Notify(signalCh, os.Interrupt, os.Kill)
// TODO(spencer): move this behind a build tag.
signal.Notify(signalCh, syscall.SIGTERM)
// Block until one of the signals above is received or the stopper
// is stopped externally (for example, via the quit endpoint).
select {
case <-stopper.ShouldStop():
case <-signalCh:
go s.Stop()
}
log.Info("initiating graceful shutdown of server")
go func() {
ticker := time.NewTicker(5 * time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
if log.V(1) {
log.Infof("running tasks:\n%s", stopper.RunningTasks())
}
log.Infof("%d running tasks", stopper.NumTasks())
case <-stopper.ShouldStop():
return
}
}
}()
select {
case <-signalCh:
log.Warningf("second signal received, initiating hard shutdown")
case <-time.After(time.Minute):
log.Warningf("time limit reached, initiating hard shutdown")
case <-stopper.IsStopped():
log.Infof("server drained and shutdown completed")
}
log.Flush()
}