fix: token registry cache (#1450) (#1456)

* fix: token registry cache

* changelog

(cherry picked from commit 60b7c2d)

Co-authored-by: Robert Zaremba <robert@zaremba.ch>

CHANGELOG.md

@@ -46,6 +46,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+## [v3.0.1](https://github.com/umee-network/umee/releases/tag/v3.0.1) - 2022-09-28
+
+### Fixes
+
+- [1450](https://github.com/umee-network/umee/pull/1450) fix: token registry cache which caused v3.0.0 halt.
+
 ## [v3.0.0](https://github.com/umee-network/umee/releases/tag/v3.0.0) - 2022-09-22
 
 ### State Machine Breaking

x/leverage/keeper/keeper.go

@@ -9,7 +9,6 @@ import (
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
-	"github.com/hashicorp/golang-lru/simplelru"
 	"github.com/tendermint/tendermint/libs/log"
 
 	"github.com/umee-network/umee/v3/x/leverage/types"
@@ -22,8 +21,6 @@ type Keeper struct {
 	hooks        types.Hooks
 	bankKeeper   types.BankKeeper
 	oracleKeeper types.OracleKeeper
-
-	tokenRegCache simplelru.LRUCache
 }
 
 func NewKeeper(
@@ -38,19 +35,12 @@ func NewKeeper(
 		paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
 	}
 
-	const tokenRegCacheSize = 100
-	tokenRegCache, err := simplelru.NewLRU(tokenRegCacheSize, nil)
-	if err != nil {
-		return Keeper{}, err
-	}
-
 	return Keeper{
-		cdc:           cdc,
-		storeKey:      storeKey,
-		paramSpace:    paramSpace,
-		bankKeeper:    bk,
-		oracleKeeper:  ok,
-		tokenRegCache: tokenRegCache,
+		cdc:          cdc,
+		storeKey:     storeKey,
+		paramSpace:   paramSpace,
+		bankKeeper:   bk,
+		oracleKeeper: ok,
 	}, nil
 }
 

x/leverage/keeper/token.go

@@ -23,17 +23,11 @@ func (k Keeper) SetTokenSettings(ctx sdk.Context, token types.Token) error {
 
 	k.hooks.AfterTokenRegistered(ctx, token)
 	store.Set(tokenKey, bz)
-	k.tokenRegCache.Add(token.BaseDenom, token)
-	ctx.GasMeter().ConsumeGas(gasCacheUpdate, "cache update")
 	return nil
 }
 
 // GetTokenSettings gets a token from the x/leverage module's KVStore.
 func (k Keeper) GetTokenSettings(ctx sdk.Context, denom string) (types.Token, error) {
-	ctx.GasMeter().ConsumeGas(gasCacheAccess, "cache access")
-	if v, ok := k.tokenRegCache.Get(denom); ok {
-		return v.(types.Token), nil
-	}
 	store := ctx.KVStore(k.storeKey)
 	tokenKey := types.CreateRegisteredTokenKey(denom)