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a stable working clustering master node implementation

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This commit is contained in:
Chris Lu
2014-02-05 00:25:23 -08:00
parent 1d5c44e2df
commit d6fbd741fd
2 changed files with 54 additions and 8 deletions
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12
go/weed/weed_server/raft_server_handlers.go
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@@ -4,7 +4,9 @@ import (
"code.google.com/p/weed-fs/go/glog"
"encoding/json"
"github.com/goraft/raft"
"io/ioutil"
"net/http"
"strings"
)
// Handles incoming RAFT joins.
@@ -12,7 +14,9 @@ func (s *RaftServer) joinHandler(w http.ResponseWriter, req *http.Request) {
glog.V(0).Infoln("Processing incoming join. Current Leader", s.raftServer.Leader(), "Self", s.raftServer.Name(), "Peers", s.raftServer.Peers())
command := &raft.DefaultJoinCommand{}
if err := json.NewDecoder(req.Body).Decode(&command); err != nil {
commandText, _ := ioutil.ReadAll(req.Body)
glog.V(0).Info("Command:", string(commandText))
if err := json.NewDecoder(strings.NewReader(string(commandText))).Decode(&command); err != nil {
glog.V(0).Infoln("Error decoding json message:", err)
http.Error(w, err.Error(), http.StatusInternalServerError)
return
@@ -37,7 +41,8 @@ func (s *RaftServer) HandleFunc(pattern string, handler func(http.ResponseWriter
func (s *RaftServer) redirectToLeader(w http.ResponseWriter, req *http.Request) {
if s.Leader() != "" {
glog.V(0).Infoln("Redirecting to", "http://"+s.Leader()+req.URL.Path)
//http.StatusMovedPermanently does not cause http POST following redirection
glog.V(0).Infoln("Redirecting to", http.StatusMovedPermanently, "http://"+s.Leader()+req.URL.Path)
http.Redirect(w, req, "http://"+s.Leader()+req.URL.Path, http.StatusMovedPermanently)
} else {
glog.V(0).Infoln("Error: Leader Unknown")
@@ -47,7 +52,8 @@ func (s *RaftServer) redirectToLeader(w http.ResponseWriter, req *http.Request)
func (s *RaftServer) statusHandler(w http.ResponseWriter, r *http.Request) {
m := make(map[string]interface{})
m["IsLeader"] = s.IsLeader()
m["Leader"] = s.Leader()
m["Members"] = s.Members()
m["Peers"] = s.Peers()
writeJsonQuiet(w, r, m)
}