diff --git a/Dockerfile b/Dockerfile
index 3073375df..c9d7d473e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.13-alpine as builder
+FROM golang:1.14-alpine as builder
 
 RUN apk --update --no-cache add make git g++ linux-headers
 # DEBUG
diff --git a/cmd/common.go b/cmd/common.go
new file mode 100644
index 000000000..3e5756218
--- /dev/null
+++ b/cmd/common.go
@@ -0,0 +1,37 @@
+// Copyright © 2021 Vulcanize, Inc
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+func addDatabaseFlags(command *cobra.Command) {
+	// database flags
+	command.PersistentFlags().String("database-name", "vulcanize_public", "database name")
+	command.PersistentFlags().Int("database-port", 5432, "database port")
+	command.PersistentFlags().String("database-hostname", "localhost", "database hostname")
+	command.PersistentFlags().String("database-user", "", "database user")
+	command.PersistentFlags().String("database-password", "", "database password")
+
+	// database flag bindings
+	viper.BindPFlag("database.name", command.PersistentFlags().Lookup("database-name"))
+	viper.BindPFlag("database.port", command.PersistentFlags().Lookup("database-port"))
+	viper.BindPFlag("database.hostname", command.PersistentFlags().Lookup("database-hostname"))
+	viper.BindPFlag("database.user", command.PersistentFlags().Lookup("database-user"))
+	viper.BindPFlag("database.password", command.PersistentFlags().Lookup("database-password"))
+}
diff --git a/cmd/serve.go b/cmd/serve.go
index e45e5ddf4..52872c4bb 100644
--- a/cmd/serve.go
+++ b/cmd/serve.go
@@ -23,14 +23,16 @@ import (
 	"os/signal"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/mailgun/groupcache/v2"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"github.com/vulcanize/ipld-eth-server/pkg/eth"
-
 	"github.com/vulcanize/gap-filler/pkg/mux"
+
+	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 	"github.com/vulcanize/ipld-eth-server/pkg/graphql"
 	srpc "github.com/vulcanize/ipld-eth-server/pkg/rpc"
 	s "github.com/vulcanize/ipld-eth-server/pkg/serve"
@@ -86,6 +88,18 @@ func serve() {
 		logWithCommand.Fatal(err)
 	}
 
+	err = startGroupCacheService(serverConfig)
+	if err != nil {
+		logWithCommand.Fatal(err)
+	}
+
+	if serverConfig.StateValidationEnabled {
+		go startStateTrieValidator(serverConfig, server)
+		logWithCommand.Info("state validator enabled")
+	} else {
+		logWithCommand.Info("state validator disabled")
+	}
+
 	shutdown := make(chan os.Signal)
 	signal.Notify(shutdown, os.Interrupt)
 	<-shutdown
@@ -200,6 +214,83 @@ func startIpldGraphQL(settings *s.Config) error {
 	return nil
 }
 
+func startGroupCacheService(settings *s.Config) error {
+	gcc := settings.GroupCache
+
+	if gcc.Pool.Enabled {
+		logWithCommand.Info("starting up groupcache pool HTTTP server")
+
+		pool := groupcache.NewHTTPPoolOpts(gcc.Pool.HttpEndpoint, &groupcache.HTTPPoolOptions{})
+		pool.Set(gcc.Pool.PeerHttpEndpoints...)
+
+		httpURL, err := url.Parse(gcc.Pool.HttpEndpoint)
+		if err != nil {
+			return err
+		}
+
+		server := http.Server{
+			Addr:    httpURL.Host,
+			Handler: pool,
+		}
+
+		// Start a HTTP server to listen for peer requests from the groupcache
+		go server.ListenAndServe()
+
+		logWithCommand.Infof("groupcache pool endpoint opened for url %s", httpURL)
+	} else {
+		logWithCommand.Info("Groupcache pool is disabled")
+	}
+
+	return nil
+}
+
+func startStateTrieValidator(config *s.Config, server s.Server) {
+	validateEveryNthBlock := config.StateValidationEveryNthBlock
+
+	var lastBlockNumber uint64
+	backend := server.Backend()
+
+	for {
+		time.Sleep(5 * time.Second)
+
+		block, err := backend.CurrentBlock()
+		if err != nil {
+			log.Errorln("Error fetching current block for state trie validator")
+			continue
+		}
+
+		stateRoot := block.Root()
+		blockNumber := block.NumberU64()
+		blockHash := block.Hash()
+
+		if validateEveryNthBlock <= 0 || // Used for static replicas where block number doesn't progress.
+			(blockNumber > lastBlockNumber) && (blockNumber%validateEveryNthBlock == 0) {
+
+			// The validate trie call will take a long time on mainnet, e.g. a few hours.
+			if err = backend.ValidateTrie(stateRoot); err != nil {
+				log.Fatalf("Error validating trie for block number %d hash %s state root %s",
+					blockNumber,
+					blockHash,
+					stateRoot,
+				)
+			}
+
+			log.Infof("Successfully validated trie for block number %d hash %s state root %s",
+				blockNumber,
+				blockHash,
+				stateRoot,
+			)
+
+			if validateEveryNthBlock <= 0 {
+				// Static replica, sleep a long-ish time (1/2 of cache expiry time) since we only need to keep the cache warm.
+				time.Sleep((time.Minute * time.Duration(config.GroupCache.StateDB.CacheExpiryInMins)) / 2)
+			}
+
+			lastBlockNumber = blockNumber
+		}
+	}
+}
+
 func parseRpcAddresses(value string) ([]*rpc.Client, error) {
 	rpcAddresses := strings.Split(value, ",")
 	rpcClients := make([]*rpc.Client, 0, len(rpcAddresses))
@@ -224,12 +315,7 @@ func parseRpcAddresses(value string) ([]*rpc.Client, error) {
 func init() {
 	rootCmd.AddCommand(serveCmd)
 
-	// database credentials
-	serveCmd.PersistentFlags().String("database-name", "vulcanize_public", "database name")
-	serveCmd.PersistentFlags().Int("database-port", 5432, "database port")
-	serveCmd.PersistentFlags().String("database-hostname", "localhost", "database hostname")
-	serveCmd.PersistentFlags().String("database-user", "", "database user")
-	serveCmd.PersistentFlags().String("database-password", "", "database password")
+	addDatabaseFlags(serveCmd)
 
 	// flags for all config variables
 	// eth graphql and json-rpc parameters
@@ -260,14 +346,19 @@ func init() {
 	serveCmd.PersistentFlags().String("eth-chain-config", "", "json chain config file location")
 	serveCmd.PersistentFlags().Bool("eth-supports-state-diff", false, "whether or not the proxy ethereum client supports statediffing endpoints")
 
-	// and their bindings
-	// database
-	viper.BindPFlag("database.name", serveCmd.PersistentFlags().Lookup("database-name"))
-	viper.BindPFlag("database.port", serveCmd.PersistentFlags().Lookup("database-port"))
-	viper.BindPFlag("database.hostname", serveCmd.PersistentFlags().Lookup("database-hostname"))
-	viper.BindPFlag("database.user", serveCmd.PersistentFlags().Lookup("database-user"))
-	viper.BindPFlag("database.password", serveCmd.PersistentFlags().Lookup("database-password"))
+	// groupcache flags
+	serveCmd.PersistentFlags().Bool("gcache-pool-enabled", false, "turn on the groupcache pool")
+	serveCmd.PersistentFlags().String("gcache-pool-http-path", "", "http url for groupcache node")
+	serveCmd.PersistentFlags().StringArray("gcache-pool-http-peers", []string{}, "http urls for groupcache peers")
+	serveCmd.PersistentFlags().Int("gcache-statedb-cache-size", 16, "state DB cache size in MB")
+	serveCmd.PersistentFlags().Int("gcache-statedb-cache-expiry", 60, "state DB cache expiry time in mins")
+	serveCmd.PersistentFlags().Int("gcache-statedb-log-stats-interval", 60, "state DB cache stats log interval in secs")
 
+	// state validator flags
+	serveCmd.PersistentFlags().Bool("validator-enabled", false, "turn on the state validator")
+	serveCmd.PersistentFlags().Uint("validator-every-nth-block", 1500, "only validate every Nth block")
+
+	// and their bindings
 	// eth graphql server
 	viper.BindPFlag("eth.server.graphql", serveCmd.PersistentFlags().Lookup("eth-server-graphql"))
 	viper.BindPFlag("eth.server.graphqlPath", serveCmd.PersistentFlags().Lookup("eth-server-graphql-path"))
@@ -301,4 +392,16 @@ func init() {
 	viper.BindPFlag("ethereum.rpcGasCap", serveCmd.PersistentFlags().Lookup("eth-rpc-gas-cap"))
 	viper.BindPFlag("ethereum.chainConfig", serveCmd.PersistentFlags().Lookup("eth-chain-config"))
 	viper.BindPFlag("ethereum.supportsStateDiff", serveCmd.PersistentFlags().Lookup("eth-supports-state-diff"))
+
+	// groupcache flags
+	viper.BindPFlag("groupcache.pool.enabled", serveCmd.PersistentFlags().Lookup("gcache-pool-enabled"))
+	viper.BindPFlag("groupcache.pool.httpEndpoint", serveCmd.PersistentFlags().Lookup("gcache-pool-http-path"))
+	viper.BindPFlag("groupcache.pool.peerHttpEndpoints", serveCmd.PersistentFlags().Lookup("gcache-pool-http-peers"))
+	viper.BindPFlag("groupcache.statedb.cacheSizeInMB", serveCmd.PersistentFlags().Lookup("gcache-statedb-cache-size"))
+	viper.BindPFlag("groupcache.statedb.cacheExpiryInMins", serveCmd.PersistentFlags().Lookup("gcache-statedb-cache-expiry"))
+	viper.BindPFlag("groupcache.statedb.logStatsIntervalInSecs", serveCmd.PersistentFlags().Lookup("gcache-statedb-log-stats-interval"))
+
+	// state validator flags
+	viper.BindPFlag("validator.enabled", serveCmd.PersistentFlags().Lookup("validator-enabled"))
+	viper.BindPFlag("validator.everyNthBlock", serveCmd.PersistentFlags().Lookup("validator-every-nth-block"))
 }
diff --git a/cmd/validate.go b/cmd/validate.go
new file mode 100644
index 000000000..c91fb918d
--- /dev/null
+++ b/cmd/validate.go
@@ -0,0 +1,87 @@
+// Copyright © 2021 Vulcanize, Inc
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	validator "github.com/vulcanize/eth-ipfs-state-validator/pkg"
+	ipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+
+	s "github.com/vulcanize/ipld-eth-server/pkg/serve"
+)
+
+const GroupName = "statedb-validate"
+const CacheExpiryInMins = 8 * 60 // 8 hours
+const CacheSizeInMB = 16         // 16 MB
+
+var validateCmd = &cobra.Command{
+	Use:   "validate",
+	Short: "valdiate state",
+	Long:  `This command validates the trie for the given state root`,
+	Run: func(cmd *cobra.Command, args []string) {
+		subCommand = cmd.CalledAs()
+		logWithCommand = *log.WithField("SubCommand", subCommand)
+		validate()
+	},
+}
+
+func validate() {
+	config, err := s.NewConfig()
+	if err != nil {
+		logWithCommand.Fatal(err)
+	}
+
+	stateRootStr := viper.GetString("stateRoot")
+	if stateRootStr == "" {
+		logWithCommand.Fatal("must provide a state root for state validation")
+	}
+
+	stateRoot := common.HexToHash(stateRootStr)
+	cacheSize := viper.GetInt("cacheSize")
+
+	ethDB := ipfsethdb.NewDatabase(config.DB.DB, ipfsethdb.CacheConfig{
+		Name:           GroupName,
+		Size:           cacheSize * 1024 * 1024,
+		ExpiryDuration: time.Minute * time.Duration(CacheExpiryInMins),
+	})
+
+	validator := validator.NewValidator(nil, ethDB)
+	if err = validator.ValidateTrie(stateRoot); err != nil {
+		log.Fatalln("Error validating state root")
+	}
+
+	stats := ethDB.GetCacheStats()
+	log.Debugf("groupcache stats %+v", stats)
+
+	log.Infoln("Successfully validated state root")
+}
+
+func init() {
+	rootCmd.AddCommand(validateCmd)
+
+	addDatabaseFlags(validateCmd)
+
+	validateCmd.PersistentFlags().String("state-root", "", "root of the state trie we wish to validate")
+	viper.BindPFlag("stateRoot", validateCmd.PersistentFlags().Lookup("state-root"))
+
+	validateCmd.PersistentFlags().Int("cache-size", CacheSizeInMB, "cache size in MB")
+	viper.BindPFlag("cacheSize", validateCmd.PersistentFlags().Lookup("cache-size"))
+}
diff --git a/go.mod b/go.mod
index a7d1b5a8a..57cca33e7 100644
--- a/go.mod
+++ b/go.mod
@@ -13,20 +13,20 @@ require (
 	github.com/jmoiron/sqlx v1.2.0
 	github.com/lib/pq v1.10.2
 	github.com/machinebox/graphql v0.2.2
+	github.com/mailgun/groupcache/v2 v2.2.1
 	github.com/matryer/is v1.4.0 // indirect
 	github.com/multiformats/go-multihash v0.0.14
 	github.com/onsi/ginkgo v1.16.2
 	github.com/onsi/gomega v1.10.1
-	github.com/prometheus/client_golang v1.5.1
+	github.com/prometheus/client_golang v1.7.1
 	github.com/shirou/gopsutil v3.21.5+incompatible // indirect
 	github.com/sirupsen/logrus v1.7.0
 	github.com/spf13/cobra v1.1.1
 	github.com/spf13/viper v1.7.0
 	github.com/tklauser/go-sysconf v0.3.6 // indirect
+	github.com/vulcanize/eth-ipfs-state-validator v0.0.1
 	github.com/vulcanize/gap-filler v0.3.1
-	github.com/vulcanize/ipfs-ethdb v0.0.4-0.20210824131459-7bb49801fc12
+	github.com/vulcanize/ipfs-ethdb v0.0.4
 )
 
 replace github.com/ethereum/go-ethereum v1.10.8 => github.com/vulcanize/go-ethereum v1.10.8-statediff-0.0.26
-
-replace github.com/vulcanize/ipfs-ethdb v0.0.2-alpha => github.com/vulcanize/pg-ipfs-ethdb v0.0.2-alpha
diff --git a/go.sum b/go.sum
index 5a5f3b5aa..e07721e5e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,9 @@
+bazil.org/fuse v0.0.0-20200117225306-7b5117fecadc h1:utDghgcjE8u+EBjHOgYT+dJPcnDF05KqWMBcjuJy510=
+bazil.org/fuse v0.0.0-20200117225306-7b5117fecadc/go.mod h1:FbcW6z/2VytnFDhZfumh8Ss8zxHE6qpMP5sHTRe0EaM=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.43.0/go.mod h1:BOSR3VbTLkk6FDC/TcffxP4NF/FFBGA5ku+jvKOP7pg=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
@@ -8,6 +12,7 @@ cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTj
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
 cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigtable v1.2.0/go.mod h1:JcVAOl45lrTmQfLj7T6TxyMzIN/3FGGcFm+2xVAli2o=
@@ -18,8 +23,16 @@ cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
 collectd.org v0.3.0/go.mod h1:A/8DzQBkF6abtvrT2j/AU/4tiBgJWYyh0y/oB/4MlWE=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIoKjsnZuH8vjyaysT/ses3EvZeaV/1UkF2M=
+github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/Azure/azure-pipeline-go v0.2.1/go.mod h1:UGSo8XybXnIGZ3epmeBw7Jdz+HiUVpqIlpz/HKHylF4=
 github.com/Azure/azure-pipeline-go v0.2.2/go.mod h1:4rQ/NZncSvGqNkkOsNpOU1tgoNuIlp9AfUH5G1tvCHc=
 github.com/Azure/azure-storage-blob-go v0.7.0/go.mod h1:f9YQKtsG1nMisotuTPpO0tjNuEjKRYAcJU8/ydDI++4=
@@ -39,10 +52,15 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI=
 github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/Stebalien/go-bitfield v0.0.0-20180330043415-076a62f9ce6e/go.mod h1:3oM7gXIttpYDAJXpVNnSCiUMYBLIZ6cb1t+Ip982MRo=
+github.com/Stebalien/go-bitfield v0.0.1 h1:X3kbSSPUaJK60wV2hjOPZwmpljr6VGCqdq4cBLhbQBo=
+github.com/Stebalien/go-bitfield v0.0.1/go.mod h1:GNjFpasyUVkHMsfEOk8EFLJ9syQ6SI+XWrX9Wf2XH0s=
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@@ -186,9 +260,11 @@ github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LB
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@@ -196,15 +272,23 @@ github.com/golang/geo v0.0.0-20190916061304-5b978397cfec/go.mod h1:QZ0nwyI2jOfgR
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@@ -228,23 +312,34 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -252,18 +347,26 @@ github.com/graph-gophers/graphql-go v0.0.0-20201113091052-beb923fada29 h1:sezaKh
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@@ -885,6 +1588,7 @@ golang.org/x/sys v0.0.0-20210816183151-1e6c022a8912 h1:uCLL3g5wH2xjxVREVuAbP9JM5
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@@ -893,6 +1597,7 @@ golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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@@ -900,8 +1605,11 @@ golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiT
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@@ -919,14 +1627,23 @@ golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -942,6 +1659,9 @@ gonum.org/v1/gonum v0.6.0/go.mod h1:9mxDZsDKxgMAuccQkewq682L+0eCu4dCN2yonUJTCLU=
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@@ -949,7 +1669,10 @@ google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEn
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+google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
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@@ -957,6 +1680,9 @@ google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCID
 google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
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@@ -970,11 +1696,19 @@ google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvx
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+google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -987,17 +1721,22 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
 gopkg.in/olebedev/go-duktape.v3 v3.0.0-20190213234257-ec84240a7772/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
+gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200603215123-a4a8cb9d2cbc/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6 h1:a6cXbcDDUkSBlpnkWV1bJ+vv3mOgQEltEJ2rPxroVu0=
 gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=
+gopkg.in/src-d/go-cli.v0 v0.0.0-20181105080154-d492247bbc0d/go.mod h1:z+K8VcOYVYcSwSjGebuDL6176A1XskgbtNl64NSg+n8=
+gopkg.in/src-d/go-log.v1 v1.0.1/go.mod h1:GN34hKP0g305ysm2/hctJ0Y8nWP3zxXXJ8GFabTyABE=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/urfave/cli.v1 v1.20.0 h1:NdAVW6RYxDif9DhDHaAortIu956m2c0v+09AZBPTbE0=
@@ -1016,11 +1755,18 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.1.3 h1:qTakTkI6ni6LFD5sBwwsdSO+AQqbSIxOauHTTQKZ/7o=
 honnef.co/go/tools v0.1.3/go.mod h1:NgwopIslSNH47DimFoV78dnkksY2EFtX0ajyb3K/las=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
diff --git a/pkg/eth/api_test.go b/pkg/eth/api_test.go
index 57866cab4..b6be7f5d6 100644
--- a/pkg/eth/api_test.go
+++ b/pkg/eth/api_test.go
@@ -20,7 +20,6 @@ import (
 	"context"
 	"math/big"
 	"strconv"
-	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -37,9 +36,10 @@ import (
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 	"github.com/vulcanize/ipld-eth-server/pkg/eth/test_helpers"
+	ethServerShared "github.com/vulcanize/ipld-eth-server/pkg/shared"
 )
 
 var (
@@ -213,12 +213,15 @@ var _ = Describe("API", func() {
 		indexAndPublisher := indexer.NewStateDiffIndexer(chainConfig, db)
 		backend, err := eth.NewEthBackend(db, &eth.Config{
 			ChainConfig: chainConfig,
-			VmConfig:    vm.Config{},
+			VMConfig:    vm.Config{},
 			RPCGasCap:   big.NewInt(10000000000), // Max gas capacity for a rpc call.
-			CacheConfig: pgipfsethdb.CacheConfig{
-				Name:           "api_test",
-				Size:           3000000, // 3MB
-				ExpiryDuration: time.Hour,
+			GroupCacheConfig: &ethServerShared.GroupCacheConfig{
+				StateDB: ethServerShared.GroupConfig{
+					Name:                   "api_test",
+					CacheSizeInMB:          8,
+					CacheExpiryInMins:      60,
+					LogStatsIntervalInSecs: 0,
+				},
 			},
 		})
 		Expect(err).ToNot(HaveOccurred())
diff --git a/pkg/eth/backend.go b/pkg/eth/backend.go
index 16e3a6bc2..66cd7bb6d 100644
--- a/pkg/eth/backend.go
+++ b/pkg/eth/backend.go
@@ -22,6 +22,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -41,9 +42,13 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/ethereum/go-ethereum/statediff/indexer/ipfs"
 	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
-	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
+	ethServerShared "github.com/ethereum/go-ethereum/statediff/indexer/shared"
 	"github.com/ethereum/go-ethereum/trie"
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+	log "github.com/sirupsen/logrus"
+	validator "github.com/vulcanize/eth-ipfs-state-validator/pkg"
+	ipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+
+	"github.com/vulcanize/ipld-eth-server/pkg/shared"
 )
 
 var (
@@ -83,6 +88,10 @@ const (
 	RetrieveCodeByMhKey = `SELECT data FROM public.blocks WHERE key = $1`
 )
 
+const (
+	StateDBGroupCacheName = "statedb"
+)
+
 type Backend struct {
 	// underlying postgres db
 	DB *postgres.DB
@@ -100,17 +109,30 @@ type Backend struct {
 }
 
 type Config struct {
-	ChainConfig   *params.ChainConfig
-	VmConfig      vm.Config
-	DefaultSender *common.Address
-	RPCGasCap     *big.Int
-	CacheConfig   pgipfsethdb.CacheConfig
+	ChainConfig      *params.ChainConfig
+	VMConfig         vm.Config
+	DefaultSender    *common.Address
+	RPCGasCap        *big.Int
+	GroupCacheConfig *shared.GroupCacheConfig
 }
 
 func NewEthBackend(db *postgres.DB, c *Config) (*Backend, error) {
+	gcc := c.GroupCacheConfig
+
+	groupName := gcc.StateDB.Name
+	if groupName == "" {
+		groupName = StateDBGroupCacheName
+	}
+
 	r := NewCIDRetriever(db)
+	ethDB := ipfsethdb.NewDatabase(db.DB, ipfsethdb.CacheConfig{
+		Name:           groupName,
+		Size:           gcc.StateDB.CacheSizeInMB * 1024 * 1024,
+		ExpiryDuration: time.Minute * time.Duration(gcc.StateDB.CacheExpiryInMins),
+	})
+
+	logStateDBStatsOnTimer(ethDB, gcc)
 
-	ethDB := pgipfsethdb.NewDatabase(db.DB, c.CacheConfig)
 	return &Backend{
 		DB:            db,
 		Retriever:     r,
@@ -292,10 +314,10 @@ func (b *Backend) BlockByNumber(ctx context.Context, blockNumber rpc.BlockNumber
 	}
 	defer func() {
 		if p := recover(); p != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 			panic(p)
 		} else if err != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 		} else {
 			err = tx.Commit()
 		}
@@ -383,10 +405,10 @@ func (b *Backend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Blo
 	}
 	defer func() {
 		if p := recover(); p != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 			panic(p)
 		} else if err != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 		} else {
 			err = tx.Commit()
 		}
@@ -592,7 +614,7 @@ func (b *Backend) GetEVM(ctx context.Context, msg core.Message, state *state.Sta
 	state.SetBalance(msg.From(), math.MaxBig256)
 	vmctx := core.NewEVMBlockContext(header, b, nil)
 	txContext := core.NewEVMTxContext(msg)
-	return vm.NewEVM(vmctx, txContext, state, b.Config.ChainConfig, b.Config.VmConfig), nil
+	return vm.NewEVM(vmctx, txContext, state, b.Config.ChainConfig, b.Config.VMConfig), nil
 }
 
 // GetAccountByNumberOrHash returns the account object for the provided address at the block corresponding to the provided number or hash
@@ -704,10 +726,10 @@ func (b *Backend) GetCodeByHash(ctx context.Context, address common.Address, has
 	}
 	defer func() {
 		if p := recover(); p != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 			panic(p)
 		} else if err != nil {
-			shared.Rollback(tx)
+			ethServerShared.Rollback(tx)
 		} else {
 			err = tx.Commit()
 		}
@@ -717,7 +739,7 @@ func (b *Backend) GetCodeByHash(ctx context.Context, address common.Address, has
 		return nil, err
 	}
 	var mhKey string
-	mhKey, err = shared.MultihashKeyFromKeccak256(common.BytesToHash(codeHash))
+	mhKey, err = ethServerShared.MultihashKeyFromKeccak256(common.BytesToHash(codeHash))
 	if err != nil {
 		return nil, err
 	}
@@ -794,6 +816,10 @@ func (b *Backend) GetHeader(hash common.Hash, height uint64) *types.Header {
 	return header
 }
 
+func (b *Backend) ValidateTrie(stateRoot common.Hash) error {
+	return validator.NewValidator(nil, b.EthDB).ValidateTrie(stateRoot)
+}
+
 // RPCGasCap returns the configured gas cap for the rpc server
 func (b *Backend) RPCGasCap() *big.Int {
 	return b.Config.RPCGasCap
@@ -826,3 +852,18 @@ func (b *Backend) BloomStatus() (uint64, uint64) {
 func (b *Backend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
 	panic("implement me")
 }
+
+func logStateDBStatsOnTimer(ethDB *ipfsethdb.Database, gcc *shared.GroupCacheConfig) {
+	// No stats logging if interval isn't a positive integer.
+	if gcc.StateDB.LogStatsIntervalInSecs <= 0 {
+		return
+	}
+
+	ticker := time.NewTicker(time.Duration(gcc.StateDB.LogStatsIntervalInSecs) * time.Second)
+
+	go func() {
+		for range ticker.C {
+			log.Infof("%s groupcache stats: %+v", StateDBGroupCacheName, ethDB.GetCacheStats())
+		}
+	}()
+}
diff --git a/pkg/eth/eth_state_test.go b/pkg/eth/eth_state_test.go
index d8ba5e73d..8ee4a12ff 100644
--- a/pkg/eth/eth_state_test.go
+++ b/pkg/eth/eth_state_test.go
@@ -21,7 +21,6 @@ import (
 	"context"
 	"io/ioutil"
 	"math/big"
-	"time"
 
 	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"
@@ -37,10 +36,10 @@ import (
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
 
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 	"github.com/vulcanize/ipld-eth-server/pkg/eth/test_helpers"
+	ethServerShared "github.com/vulcanize/ipld-eth-server/pkg/shared"
 )
 
 var (
@@ -80,12 +79,15 @@ var _ = Describe("eth state reading tests", func() {
 		transformer := indexer.NewStateDiffIndexer(chainConfig, db)
 		backend, err = eth.NewEthBackend(db, &eth.Config{
 			ChainConfig: chainConfig,
-			VmConfig:    vm.Config{},
+			VMConfig:    vm.Config{},
 			RPCGasCap:   big.NewInt(10000000000), // Max gas capacity for a rpc call.
-			CacheConfig: pgipfsethdb.CacheConfig{
-				Name:           "eth_state",
-				Size:           3000000, // 3MB
-				ExpiryDuration: time.Hour,
+			GroupCacheConfig: &ethServerShared.GroupCacheConfig{
+				StateDB: ethServerShared.GroupConfig{
+					Name:                   "eth_state_test",
+					CacheSizeInMB:          8,
+					CacheExpiryInMins:      60,
+					LogStatsIntervalInSecs: 0,
+				},
 			},
 		})
 		Expect(err).ToNot(HaveOccurred())
diff --git a/pkg/graphql/graphql_test.go b/pkg/graphql/graphql_test.go
index c3ca3b701..2e7ce074a 100644
--- a/pkg/graphql/graphql_test.go
+++ b/pkg/graphql/graphql_test.go
@@ -20,7 +20,6 @@ import (
 	"context"
 	"fmt"
 	"math/big"
-	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -37,11 +36,11 @@ import (
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
 
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 	"github.com/vulcanize/ipld-eth-server/pkg/eth/test_helpers"
 	"github.com/vulcanize/ipld-eth-server/pkg/graphql"
+	ethServerShared "github.com/vulcanize/ipld-eth-server/pkg/shared"
 )
 
 // SetupDB is use to setup a db for watcher tests
@@ -85,12 +84,15 @@ var _ = Describe("GraphQL", func() {
 		transformer := indexer.NewStateDiffIndexer(chainConfig, db)
 		backend, err = eth.NewEthBackend(db, &eth.Config{
 			ChainConfig: chainConfig,
-			VmConfig:    vm.Config{},
+			VMConfig:    vm.Config{},
 			RPCGasCap:   big.NewInt(10000000000),
-			CacheConfig: pgipfsethdb.CacheConfig{
-				Name:           "graphql_test",
-				Size:           3000000, // 3MB
-				ExpiryDuration: time.Hour,
+			GroupCacheConfig: &ethServerShared.GroupCacheConfig{
+				StateDB: ethServerShared.GroupConfig{
+					Name:                   "graphql_test",
+					CacheSizeInMB:          8,
+					CacheExpiryInMins:      60,
+					LogStatsIntervalInSecs: 0,
+				},
 			},
 		})
 		Expect(err).ToNot(HaveOccurred())
diff --git a/pkg/serve/config.go b/pkg/serve/config.go
index 390ced1ba..6fb310396 100644
--- a/pkg/serve/config.go
+++ b/pkg/serve/config.go
@@ -28,9 +28,10 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
 	"github.com/spf13/viper"
-	"github.com/vulcanize/ipld-eth-server/pkg/prom"
 
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
+	"github.com/vulcanize/ipld-eth-server/pkg/prom"
+	ethServerShared "github.com/vulcanize/ipld-eth-server/pkg/shared"
 )
 
 // Env variables
@@ -47,6 +48,9 @@ const (
 	ethRPCGasCap         = "ETH_RPC_GAS_CAP"
 	ethChainConfig       = "ETH_CHAIN_CONFIG"
 	ethSupportsStatediff = "ETH_SUPPORTS_STATEDIFF"
+
+	ValidatorEnabled       = "VALIDATOR_ENABLED"
+	ValidatorEveryNthBlock = "VALIDATOR_EVERY_NTH_BLOCK"
 )
 
 // Config struct
@@ -79,6 +83,12 @@ type Config struct {
 	EthHttpEndpoint  string
 	Client           *rpc.Client
 	SupportStateDiff bool
+
+	// Cache configuration.
+	GroupCache *ethServerShared.GroupCacheConfig
+
+	StateValidationEnabled       bool
+	StateValidationEveryNthBlock uint64
 }
 
 // NewConfig is used to initialize a watcher config from a .toml file
@@ -205,6 +215,11 @@ func NewConfig() (*Config, error) {
 	} else {
 		c.ChainConfig, err = eth.ChainConfig(nodeInfo.ChainID)
 	}
+
+	c.loadGroupCacheConfig()
+
+	c.loadValidatorConfig()
+
 	return c, err
 }
 
@@ -217,7 +232,7 @@ func overrideDBConnConfig(con *postgres.ConnectionConfig) {
 	con.MaxLifetime = viper.GetInt("database.server.maxLifetime")
 }
 
-func (d *Config) dbInit() {
+func (c *Config) dbInit() {
 	viper.BindEnv("database.name", databaseName)
 	viper.BindEnv("database.hostname", databaseHostname)
 	viper.BindEnv("database.port", databasePort)
@@ -227,12 +242,43 @@ func (d *Config) dbInit() {
 	viper.BindEnv("database.maxOpen", databaseMaxOpenConnections)
 	viper.BindEnv("database.maxLifetime", databaseMaxOpenConnLifetime)
 
-	d.DBParams.Name = viper.GetString("database.name")
-	d.DBParams.Hostname = viper.GetString("database.hostname")
-	d.DBParams.Port = viper.GetInt("database.port")
-	d.DBParams.User = viper.GetString("database.user")
-	d.DBParams.Password = viper.GetString("database.password")
-	d.DBConfig.MaxIdle = viper.GetInt("database.maxIdle")
-	d.DBConfig.MaxOpen = viper.GetInt("database.maxOpen")
-	d.DBConfig.MaxLifetime = viper.GetInt("database.maxLifetime")
+	c.DBParams.Name = viper.GetString("database.name")
+	c.DBParams.Hostname = viper.GetString("database.hostname")
+	c.DBParams.Port = viper.GetInt("database.port")
+	c.DBParams.User = viper.GetString("database.user")
+	c.DBParams.Password = viper.GetString("database.password")
+	c.DBConfig.MaxIdle = viper.GetInt("database.maxIdle")
+	c.DBConfig.MaxOpen = viper.GetInt("database.maxOpen")
+	c.DBConfig.MaxLifetime = viper.GetInt("database.maxLifetime")
+}
+
+func (c *Config) loadGroupCacheConfig() {
+	viper.BindEnv("groupcache.pool.enabled", ethServerShared.GcachePoolEnabled)
+	viper.BindEnv("groupcache.pool.httpEndpoint", ethServerShared.GcachePoolHttpPath)
+	viper.BindEnv("groupcache.pool.peerHttpEndpoints", ethServerShared.GcachePoolHttpPeers)
+	viper.BindEnv("groupcache.statedb.cacheSizeInMB", ethServerShared.GcacheStatedbCacheSize)
+	viper.BindEnv("groupcache.statedb.cacheExpiryInMins", ethServerShared.GcacheStatedbCacheExpiry)
+	viper.BindEnv("groupcache.statedb.logStatsIntervalInSecs", ethServerShared.GcacheStatedbLogStatsInterval)
+
+	gcc := ethServerShared.GroupCacheConfig{}
+	gcc.Pool.Enabled = viper.GetBool("groupcache.pool.enabled")
+	if gcc.Pool.Enabled {
+		gcc.Pool.HttpEndpoint = viper.GetString("groupcache.pool.httpEndpoint")
+		gcc.Pool.PeerHttpEndpoints = viper.GetStringSlice("groupcache.pool.peerHttpEndpoints")
+	}
+
+	// Irrespective of whether the pool is enabled, we always use the hot/local cache.
+	gcc.StateDB.CacheSizeInMB = viper.GetInt("groupcache.statedb.cacheSizeInMB")
+	gcc.StateDB.CacheExpiryInMins = viper.GetInt("groupcache.statedb.cacheExpiryInMins")
+	gcc.StateDB.LogStatsIntervalInSecs = viper.GetInt("groupcache.statedb.logStatsIntervalInSecs")
+
+	c.GroupCache = &gcc
+}
+
+func (c *Config) loadValidatorConfig() {
+	viper.BindEnv("validator.enabled", ValidatorEnabled)
+	viper.BindEnv("validator.everyNthBlock", ValidatorEveryNthBlock)
+
+	c.StateValidationEnabled = viper.GetBool("validator.enabled")
+	c.StateValidationEveryNthBlock = viper.GetUint64("validator.everyNthBlock")
 }
diff --git a/pkg/serve/service.go b/pkg/serve/service.go
index ed403ae2a..6776d7128 100644
--- a/pkg/serve/service.go
+++ b/pkg/serve/service.go
@@ -20,7 +20,6 @@ import (
 	"fmt"
 	"strconv"
 	"sync"
-	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -31,7 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
 	log "github.com/sirupsen/logrus"
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 	"github.com/vulcanize/ipld-eth-server/pkg/net"
 )
@@ -100,15 +99,11 @@ func NewServer(settings *Config) (Server, error) {
 	sap.supportsStateDiffing = settings.SupportStateDiff
 	var err error
 	sap.backend, err = eth.NewEthBackend(sap.db, &eth.Config{
-		ChainConfig:   settings.ChainConfig,
-		VmConfig:      vm.Config{},
-		DefaultSender: settings.DefaultSender,
-		RPCGasCap:     settings.RPCGasCap,
-		CacheConfig: pgipfsethdb.CacheConfig{
-			Name:           "ipld-eth-server",
-			Size:           3000000, // 3MB
-			ExpiryDuration: time.Hour,
-		},
+		ChainConfig:      settings.ChainConfig,
+		VMConfig:         vm.Config{},
+		DefaultSender:    settings.DefaultSender,
+		RPCGasCap:        settings.RPCGasCap,
+		GroupCacheConfig: settings.GroupCache,
 	})
 	return sap, err
 }
diff --git a/pkg/shared/constants.go b/pkg/shared/constants.go
index 3dc2994c4..95ba36f5b 100644
--- a/pkg/shared/constants.go
+++ b/pkg/shared/constants.go
@@ -19,4 +19,11 @@ package shared
 const (
 	DefaultMaxBatchSize   uint64 = 100
 	DefaultMaxBatchNumber int64  = 50
+
+	GcachePoolEnabled             = "GCACHE_POOL_ENABLED"
+	GcachePoolHttpPath            = "GCACHE_POOL_HTTP_PATH"
+	GcachePoolHttpPeers           = "GCACHE_POOL_HTTP_PEERS"
+	GcacheStatedbCacheSize        = "GCACHE_STATEDB_CACHE_SIZE"
+	GcacheStatedbCacheExpiry      = "GCACHE_STATEDB_CACHE_EXPIRY"
+	GcacheStatedbLogStatsInterval = "GCACHE_STATEDB_LOG_STATS_INTERVAL"
 )
diff --git a/pkg/shared/types.go b/pkg/shared/types.go
new file mode 100644
index 000000000..8a21a8d08
--- /dev/null
+++ b/pkg/shared/types.go
@@ -0,0 +1,38 @@
+// VulcanizeDB
+// Copyright © 2021 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package shared
+
+type PoolConfig struct {
+	Enabled           bool
+	HttpEndpoint      string
+	PeerHttpEndpoints []string
+}
+
+type GroupConfig struct {
+	CacheSizeInMB          int
+	CacheExpiryInMins      int
+	LogStatsIntervalInSecs int
+
+	// Used in tests to override the cache name, to work around
+	// the "duplicate registration of group" error from groupcache
+	Name string
+}
+
+type GroupCacheConfig struct {
+	Pool    PoolConfig
+	StateDB GroupConfig
+}