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cleaner cluster messages

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This commit is contained in:
Chris Lu 2014-02-09 23:37:29 -08:00
parent 67125688ed
commit ef4c2c0d1e
4 changed files with 25 additions and 4 deletions
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2
go/topology/topology.go
View file

@ -12,6 +12,8 @@ import (
type Topology struct {
NodeImpl
IsLeader bool
collectionMap map[string]*Collection
pulse int64

12
go/topology/topology_event_handling.go
View file

@ -10,15 +10,19 @@ import (
func (t *Topology) StartRefreshWritableVolumes(garbageThreshold string) {
go func() {
for {
freshThreshHold := time.Now().Unix() - 3*t.pulse //3 times of sleep interval
t.CollectDeadNodeAndFullVolumes(freshThreshHold, t.volumeSizeLimit)
if t.IsLeader {
freshThreshHold := time.Now().Unix() - 3*t.pulse //3 times of sleep interval
t.CollectDeadNodeAndFullVolumes(freshThreshHold, t.volumeSizeLimit)
}
time.Sleep(time.Duration(float32(t.pulse*1e3)*(1+rand.Float32())) * time.Millisecond)
}
}()
go func(garbageThreshold string) {
c := time.Tick(15 * time.Minute)
for _ = range c {
t.Vacuum(garbageThreshold)
if t.IsLeader {
for _ = range c {
t.Vacuum(garbageThreshold)
}
}
}(garbageThreshold)
go func() {

11
go/weed/weed_server/master_server.go
View file

@ -5,6 +5,7 @@ import (
"code.google.com/p/weed-fs/go/replication"
"code.google.com/p/weed-fs/go/sequence"
"code.google.com/p/weed-fs/go/topology"
"github.com/goraft/raft"
"github.com/gorilla/mux"
"net/http"
"net/http/httputil"
@ -72,6 +73,16 @@ func NewMasterServer(r *mux.Router, version string, port int, metaFolder string,
func (ms *MasterServer) SetRaftServer(raftServer *RaftServer) {
ms.raftServer = raftServer
ms.raftServer.raftServer.AddEventListener(raft.LeaderChangeEventType, func(e raft.Event) {
ms.topo.IsLeader = ms.IsLeader()
glog.V(0).Infoln("[", ms.raftServer.Name(), "]", ms.raftServer.Leader(), "becomes leader.")
})
ms.topo.IsLeader = ms.IsLeader()
if ms.topo.IsLeader {
glog.V(0).Infoln("[", ms.raftServer.Name(), "]", "I am the leader!")
} else {
glog.V(0).Infoln("[", ms.raftServer.Name(), "]", ms.raftServer.Leader(), "is the leader.")
}
}
func (ms *MasterServer) IsLeader() bool {

4
go/weed/weed_server/raft_server.go
View file

@ -87,6 +87,10 @@ func NewRaftServer(r *mux.Router, version string, peers []string, httpAddr strin
return s
}
func (s *RaftServer) Name() string {
return s.raftServer.Name()
}
func (s *RaftServer) IsLeader() bool {
return s.Leader() == s.raftServer.Name()
}