Add a LOTUS_DISABLE_V3_ACTOR_MIGRATION envvar

build/params_mainnet.go

@@ -8,6 +8,7 @@
 package build
 
 import (
+	"math"
 	"os"
 
 	"github.com/filecoin-project/go-address"
@@ -53,7 +54,7 @@ const UpgradeOrangeHeight = 336458
 const UpgradeClausHeight = 343200
 
 // 2021-03-04T00:00:30Z
-const UpgradeActorsV3Height = 550321
+var UpgradeActorsV3Height = abi.ChainEpoch(550321)
 
 func init() {
 	policy.SetConsensusMinerMinPower(abi.NewStoragePower(10 << 40))
@@ -62,6 +63,10 @@ func init() {
 		SetAddressNetwork(address.Mainnet)
 	}
 
+	if os.Getenv("LOTUS_DISABLE_V3_ACTOR_MIGRATION") == "1" {
+		UpgradeActorsV3Height = math.MaxInt64
+	}
+
 	Devnet = false
 
 	BuildType = BuildMainnet