fix Query unmarshal

liuxiaolong

2020-05-14 b83d511e4ec77556800ee8a459a40c8f94262c45

 agent.go

@@ -212,7 +212,7 @@

         dumpData := dbDumpH.Dump(strings.Join(tableNames, ","))

         bytesReturn, _ := json.Marshal(dumpData)
         bytesReturn := []byte(dumpData)
         fmt.Println("androidSync len(bytesReturn): ", len(bytesReturn))
         if query, ok := event.(*serf.Query); ok {
            if err := query.Respond(bytesReturn); err != nil {
@@ -489,12 +489,11 @@
         select {
         case r := <-respCh:
            fmt.Println("Query response's len:", len(r.Payload))
            err := json.Unmarshal(r.Payload, &dumpSqls)
            if err == nil {
               fmt.Println("dumpSql:", dumpSqls)
            dumpSqls = string(r.Payload)
            if len(dumpSqls) >0 {
               fmt.Println("data dump success")
            } else {
               fmt.Println("Query response.err:", err)
               fmt.Println("Query response.len = 0")
            }
            return
         }