func NewRiakExplorer(port int64, nodename string, c *cepm.CEPM, root string, useSuperChroot bool) (*RiakExplorer, error) {
exepath := "/riak_explorer/bin/riak_explorer"
var err error
args := []string{"console", "-noinput"}
healthCheckFun := func() error {
log.Info("Running healthcheck: ", port)
_, err := rexclient.NewRiakExplorerClient(fmt.Sprintf("localhost:%d", port)).Ping()
log.Info("Healthcheck result ", err)
return err
}
tearDownFun := func() {
log.Info("Tearing down riak explorer")
//err := os.RemoveAll("riak_explorer")
//if err != nil {
/// log.Error(err)
//}
}
re := &RiakExplorer{
port: port,
}
if c != nil {
// This is gross -- we're passing "hidden" state by passing it through the unix environment variables.
// Fix it -- we should convert the NewRiakExplorer into using a fluent pattern?
libpath := filepath.Join(root, "riak_explorer", "lib", "basho-patches")
os.Mkdir(libpath, 0777)
err := cepm.InstallInto(libpath)
if err != nil {
log.Panic(err)
}
if err := common.KillEPMD(filepath.Join(root, "riak_explorer")); err != nil {
log.Fatal("Could not kill EPMd: ", err)
}
args = append(args, "-no_epmd")
re.configureAdvanced(c.GetPort(), root)
}
re.configure(port, nodename, root)
log.Debugf("Starting up Riak Explorer %v", exepath)
re.pm, err = process_manager.NewProcessManager(tearDownFun, exepath, args, healthCheckFun, &root, useSuperChroot)
if err != nil {
log.Error("Could not start Riak Explorer: ", err)
}
return re, err
}
func (riakNode *RiakNode) Run() {
var err error
var fetchURI string
var resp *http.Response
os.Mkdir("root", 0777)
riakNode.decompress()
fetchURI = fmt.Sprintf("%s/static2/riak-2.1.1-bin.tar.gz", riakNode.taskData.URI)
log.Info("Preparing to fetch riak from: ", fetchURI)
resp, err = http.Get(fetchURI)
if err != nil {
log.Panic("Unable to fetch riak root: ", err)
}
err = common.ExtractGZ("root", resp.Body)
if err != nil {
log.Panic("Unable to extract riak root: ", err)
}
config := riakNode.configureRiak(riakNode.taskData)
c := cepm.NewCPMd(0, riakNode.metadataManager)
c.Background()
riakNode.configureAdvanced(c.GetPort())
args := []string{"console", "-noinput"}
kernelDirs, err := filepath.Glob("root/riak/lib/kernel*")
if err != nil {
log.Fatal("Could not find kernel directory")
}
log.Infof("Found kernel dirs: %v", kernelDirs)
err = cepm.InstallInto(fmt.Sprint(kernelDirs[0], "/ebin"))
if err != nil {
log.Panic(err)
}
if err := common.KillEPMD("root/riak"); err != nil {
log.Fatal("Could not kill EPMd: ", err)
}
args = append(args, "-no_epmd")
os.MkdirAll(fmt.Sprint(kernelDirs[0], "/priv"), 0777)
ioutil.WriteFile(fmt.Sprint(kernelDirs[0], "/priv/cepmd_port"), []byte(fmt.Sprintf("%d.", c.GetPort())), 0777)
HealthCheckFun := func() error {
log.Info("Checking is Riak is started")
data, err := ioutil.ReadFile("root/riak/log/console.log")
if err != nil {
if bytes.Contains(data, []byte("Wait complete for service riak_kv")) {
log.Info("Riak started, waiting 10 seconds to avoid race conditions (HACK)")
time.Sleep(10 * time.Second)
return nil
}
return errors.New("Riak KV not yet started")
}
return err
}
wd, err := os.Getwd()
if err != nil {
log.Panic("Could not get wd: ", err)
}
chroot := filepath.Join(wd, "root")
riakNode.pm, err = process_manager.NewProcessManager(func() { return }, "/riak/bin/riak", args, HealthCheckFun, &chroot, riakNode.taskData.UseSuperChroot)
if err != nil {
log.Error("Could not start Riak: ", err)
runStatus := &mesos.TaskStatus{
TaskId: riakNode.taskInfo.GetTaskId(),
State: mesos.TaskState_TASK_FAILED.Enum(),
}
_, err = riakNode.executor.Driver.SendStatusUpdate(runStatus)
if err != nil {
log.Panic("Got error", err)
}
// Shutdown:
time.Sleep(15 * time.Minute)
log.Info("Shutting down due to GC, after failing to bring up Riak node")
riakNode.executor.Driver.Stop()
} else {
rexPort := riakNode.taskData.RexPort
riakNode.startRex(rexPort, c)
rootNode := riakNode.metadataManager.GetRootNode()
rootNode.CreateChildIfNotExists("coordinator")
coordinator, err := rootNode.GetChild("coordinator")
if err != nil {
log.Panic(err)
}
coordinator.CreateChildIfNotExists("coordinatedNodes")
coordinatedNodes, err := coordinator.GetChild("coordinatedNodes")
if err != nil {
log.Panic(err)
}
child, err := coordinatedNodes.MakeChild(riakNode.taskInfo.GetTaskId().GetValue(), true)
if err != nil {
log.Panic(err)
}
coordinatedData := common.CoordinatedData{
NodeName: riakNode.taskData.FullyQualifiedNodeName,
DisterlPort: int(config.DisterlPort),
PBPort: int(config.PBPort),
HTTPPort: int(config.HTTPPort),
Hostname: riakNode.executor.slaveInfo.GetHostname(),
ClusterName: riakNode.taskData.ClusterName,
FrameworkName: riakNode.taskData.FrameworkName,
}
cdBytes, err := coordinatedData.Serialize()
if err != nil {
log.Panic("Could not serialize coordinated data ", err)
}
child.SetData(cdBytes)
// lock.Unlock()
tsd := common.TaskStatusData{
RexPort: rexPort,
}
tsdBytes, err := tsd.Serialize()
if err != nil {
log.Panic("Could not serialize Riak Explorer data", err)
}
runStatus := &mesos.TaskStatus{
TaskId: riakNode.taskInfo.GetTaskId(),
State: mesos.TaskState_TASK_RUNNING.Enum(),
Data: tsdBytes,
}
_, err = riakNode.executor.Driver.SendStatusUpdate(runStatus)
if err != nil {
log.Panic("Got error", err)
}
riakNode.running = true
go riakNode.runLoop(child)
}
}
func (riakNode *RiakNode) Run() {
var err error
config := riakNode.configureRiak(riakNode.taskData)
c := cepm.NewCPMd(0, riakNode.metadataManager)
c.Background()
riakNode.configureAdvanced(c.GetPort())
args := []string{"console", "-noinput"}
kernelDirs, err := filepath.Glob("root/riak/lib/kernel*")
if err != nil {
log.Fatal("Could not find kernel directory")
}
log.Infof("Found kernel dirs: %v", kernelDirs)
err = cepm.InstallInto(fmt.Sprint(kernelDirs[0], "/ebin"))
if err != nil {
log.Panic(err)
}
if err := common.KillEPMD("root/riak"); err != nil {
log.Fatal("Could not kill EPMd: ", err)
}
args = append(args, "-no_epmd")
os.MkdirAll(fmt.Sprint(kernelDirs[0], "/priv"), 0777)
ioutil.WriteFile(fmt.Sprint(kernelDirs[0], "/priv/cepmd_port"), []byte(fmt.Sprintf("%d.", c.GetPort())), 0777)
HealthCheckFun := func() error {
log.Info("Checking is Riak is started")
data, err := ioutil.ReadFile("root/riak/log/console.log")
if err != nil {
if bytes.Contains(data, []byte("Wait complete for service riak_kv")) {
log.Info("Riak started, waiting 10 seconds to avoid race conditions (HACK)")
time.Sleep(10 * time.Second)
return nil
}
return errors.New("Riak KV not yet started")
}
return err
}
wd, err := os.Getwd()
if err != nil {
log.Panic("Could not get wd: ", err)
}
chroot := filepath.Join(wd, "root")
riakNode.pm, err = process_manager.NewProcessManager(func() { return }, "/riak/bin/riak", args, HealthCheckFun, &chroot, riakNode.taskData.UseSuperChroot)
if err != nil {
log.Error("Could not start Riak: ", err)
runStatus := &mesos.TaskStatus{
TaskId: riakNode.taskInfo.GetTaskId(),
State: mesos.TaskState_TASK_FAILED.Enum(),
}
_, err = riakNode.executor.Driver.SendStatusUpdate(runStatus)
if err != nil {
log.Panic("Got error", err)
}
// Shutdown:
time.Sleep(15 * time.Minute)
log.Info("Shutting down due to GC, after failing to bring up Riak node")
riakNode.executor.Driver.Stop()
} else {
child := riakNode.getCoordinatedChild()
riakNode.setCoordinatedData(child, config)
rexPort := riakNode.taskData.HTTPPort
tsd := common.TaskStatusData{
RexPort: rexPort,
}
tsdBytes, err := tsd.Serialize()
if err != nil {
log.Panic("Could not serialize Riak Explorer data", err)
}
runStatus := &mesos.TaskStatus{
TaskId: riakNode.taskInfo.GetTaskId(),
State: mesos.TaskState_TASK_RUNNING.Enum(),
Data: tsdBytes,
}
_, err = riakNode.executor.Driver.SendStatusUpdate(runStatus)
if err != nil {
log.Panic("Got error", err)
}
riakNode.running = true
go riakNode.runLoop(child)
}
}