# App freezes

**URL:** <https://discuss.dgraph.io/t/app-freezes/15741>\
**Category:** Ristretto\
**Created:** [October 6, 2021, 12:53pm UTC](https://discuss.dgraph.io/t/app-freezes/15741 "2021-10-06T12:53:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ITheCorgi](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/ithecorgi/32/8934_2.png) [@ITheCorgi](https://discuss.dgraph.io/u/ITheCorgi)\
**Post date:** [October 6, 2021, 12:53pm UTC](https://discuss.dgraph.io/t/app-freezes/15741/1 "2021-10-06T12:53:33Z")

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Hey,  
I have an object like map[uint64]map[uint64]Users, which I convert to ristretto cache model, I use map[uint64]Users as cache value.  
The issue is I want to go through all map values to find required User struct, but I cant - app freezes each time I try to range over map. So, ristretto`s Get() returns a map[uint64]Users, but I cant traverse it.  
I tried to print the value of map and it looks fine.  
Its like this:  
users, err := ristrettoCache.Get(userID)  
if err != nil {return err}  
log.Println(users) //stored value prints in terminal  
if u, ok := users.(model.Users); ok {  
log.Println(u.(model.Users).[1]) //also fine, it is printed in the terminal  
for k,v := range u { // but app freezes trying to range  
//…  
}  
}