remove redis (#12918)

store/layered_store.go

@@ -7,11 +7,6 @@ import (
 	"context"
 
 	"github.com/mattermost/mattermost-server/einterfaces"
-	"github.com/mattermost/mattermost-server/mlog"
-)
-
-const (
-	ENABLE_EXPERIMENTAL_REDIS = false
 )
 
 type LayeredStoreDatabaseLayer interface {
@@ -23,7 +18,6 @@ type LayeredStore struct {
 	TmpContext      context.Context
 	DatabaseLayer   LayeredStoreDatabaseLayer
 	LocalCacheLayer *LocalCacheSupplier
-	RedisLayer      *RedisSupplier
 	LayerChainHead  LayeredStoreSupplier
 }
 
@@ -35,15 +29,8 @@ func NewLayeredStore(db LayeredStoreDatabaseLayer, metrics einterfaces.MetricsIn
 	}
 
 	// Setup the chain
-	if ENABLE_EXPERIMENTAL_REDIS {
-		mlog.Debug("Experimental redis enabled.")
-		store.RedisLayer = NewRedisSupplier()
-		store.RedisLayer.SetChainNext(store.DatabaseLayer)
-		store.LayerChainHead = store.RedisLayer
-	} else {
-		store.LocalCacheLayer.SetChainNext(store.DatabaseLayer)
-		store.LayerChainHead = store.LocalCacheLayer
-	}
+	store.LocalCacheLayer.SetChainNext(store.DatabaseLayer)
+	store.LayerChainHead = store.LocalCacheLayer
 
 	return store
 }

store/redis_supplier.go

@@ -1,87 +0,0 @@
-// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package store
-
-import (
-	"bytes"
-	"encoding/gob"
-
-	"time"
-
-	"github.com/go-redis/redis"
-	"github.com/mattermost/mattermost-server/mlog"
-)
-
-const REDIS_EXPIRY_TIME = 30 * time.Minute
-
-type RedisSupplier struct {
-	next   LayeredStoreSupplier
-	client *redis.Client
-}
-
-func GetBytes(key interface{}) ([]byte, error) {
-	var buf bytes.Buffer
-	enc := gob.NewEncoder(&buf)
-	err := enc.Encode(key)
-	if err != nil {
-		return nil, err
-	}
-	return buf.Bytes(), nil
-}
-
-func DecodeBytes(input []byte, thing interface{}) error {
-	dec := gob.NewDecoder(bytes.NewReader(input))
-	return dec.Decode(thing)
-}
-
-func NewRedisSupplier() *RedisSupplier {
-	supplier := &RedisSupplier{}
-
-	supplier.client = redis.NewClient(&redis.Options{
-		Addr:     "localhost:6379",
-		Password: "",
-		DB:       0,
-	})
-
-	if _, err := supplier.client.Ping().Result(); err != nil {
-		mlog.Error("Unable to ping redis server: " + err.Error())
-		return nil
-	}
-
-	return supplier
-}
-
-func (s *RedisSupplier) save(key string, value interface{}, expiry time.Duration) error {
-	if bytes, err := GetBytes(value); err != nil {
-		return err
-	} else {
-		if err := s.client.Set(key, bytes, expiry).Err(); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (s *RedisSupplier) load(key string, writeTo interface{}) (bool, error) {
-	if data, err := s.client.Get(key).Bytes(); err != nil {
-		if err == redis.Nil {
-			return false, nil
-		} else {
-			return false, err
-		}
-	} else {
-		if err := DecodeBytes(data, writeTo); err != nil {
-			return false, err
-		}
-	}
-	return true, nil
-}
-
-func (s *RedisSupplier) SetChainNext(next LayeredStoreSupplier) {
-	s.next = next
-}
-
-func (s *RedisSupplier) Next() LayeredStoreSupplier {
-	return s.next
-}