Everybody is good the first time I used go, wrote a RPC application but when I use RPC to preach and out of a problem, then the parameter is a structure, in the server to reply when assignment is correct, then parameters is only part of the end of the service received is correct, then there is part of the value is the initial value,
Here is my part of the code

 
Type StateEnum uint8 
Const (
IDLE StateEnum=iota 
INPROGRESS 
COMPLETED 
The ERROR 
) 

Type PhaseEnum uint8 
Const (
MAP_PAHSE PhaseEnum=iota 
REDUCE_PAHSE 
) 
The type of Task struct {
The state StateEnum 
Phase PhaseEnum 
NMap int 
NReduce int 
FileName string 
WorkID int 
} 

Then on the server side is

 
Func (c * Coordinator) ReqOneTask (args * ReqTaskArgs, reply * ReqTaskReply) error {
C. the tx. The Lock () 
Defer c. tx. Unlock () 
T, ok:=& lt; - c.t askCh 
If ok {
T.w orkID=args. WorkerID 
T.N Map=c.w orkerNum 
T.s Tate=INPROGRESS 
C.t askStates [t.w orkID]=t 
Reply. Task=t 
Reply. State=0 
FMT. Printf (" ReqOneTask % \ n + v, t) 
} else {
If c.p hase==MAP_PAHSE {
Reply. State=1 
} else {
Reply. State=1 
} 
} 
Return nil 
} 

I see the FMT. Printf (" ReqOneTask % \ n + v, t) output is the result of the normal, t state, fileName is the expected value
Then the end of the service is

 
Func (w * worker) getTask () {
The args:=& amp; ReqTaskArgs {} 
The args. WorkerID=w.i d 
Reply:=& amp; ReqTaskReply {} 
If ok:=call (" Coordinator. ReqOneTask ", args, reply); ! Ok {
The Fatal (getTask "fail") 
} 
The switch reply. State {
Case 0: 
W.r unTask (reply. Task) 
Case 1: 
Case 1: 
OS. Exit (1) 
} 
} 

On the client side to see the reply. Task, including the inside of the workID, NMap value is correct, but the state and the fileName is initialized values (0 and the empty string)
To ask you, where I made a mistake!
thank you