2015-05-06 20:04
浏览 61

Go Lang和Labix mgo-在后续请求后获得EOF

I have a web process, similar to

func main() {
    // mgo
    mongoDatabase, err := mgopath.Connect(envMongoPath)
    if err != nil {

    r := mux.NewRouter()
    // ....
    r.HandleFunc("/apps/{app:.+}", stuffHandler(mongoDatabase)).Methods("GET")
    http.Handle("/", r)

    listen := fmt.Sprintf("%s:%s", host, port)
    log.Fatal(http.ListenAndServe(listen, nil))

while mgopath.Connect looks like

func Connect(mongoPath string) (*mgo.Database, error) {
    dbConfig, err := url.Parse(mongoPath)
    if err != nil {
        return nil, err

    log.Printf("Connecting to %s", dbConfig.Host)
    sess, err := mgo.Dial(dbConfig.Host)
    if err != nil {
        return nil, err

    dbName := dbConfig.Path
    log.Printf("Using database %s", dbName)
    if len(dbName) < 2 {
        return nil, errors.New("No database name specified.")

    dbName = dbConfig.Path[1:len(dbConfig.Path)]
    return sess.DB(dbName), err

Somewhere down the road:

c := database.C("stuff")
err = c.Find(bson.M{"id": id}).One(&item) // First ~1-2 minutes work as expected, then I receive EOFs
// c.Insert(), c.Update(), c.All()...

The problem is, that after a couple of minutes, all queries to mongodb return the error EOF. I have to restart the process to get things working again. Experienced both issues on Mac and (more frequently) on Windows. MongoDB runs inside of Docker, which in turn runs inside of boot2docker. VM Port forwarding have been done (that's why queries work for a certain amount of time).

Does mgo require me to dial every time I'm doing a query? Is there some timeout I don't know about?

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