diff --git a/cluster/router/healthcheck/default_health_check.go b/cluster/router/healthcheck/default_health_check.go
index c693b86ecd..c522bdf0f9 100644
--- a/cluster/router/healthcheck/default_health_check.go
+++ b/cluster/router/healthcheck/default_health_check.go
@@ -31,7 +31,7 @@ import (
 )
 
 func init() {
-	extension.SethealthChecker(constant.DEFAULT_HEALTH_CHECKER, NewDefaultHealthChecker)
+	extension.SetHealthChecker(constant.DEFAULT_HEALTH_CHECKER, NewDefaultHealthChecker)
 }
 
 // DefaultHealthChecker is the default implementation of HealthChecker, which determines the health status of
@@ -85,7 +85,7 @@ func (c *DefaultHealthChecker) getCircuitBreakerSleepWindowTime(status *protocol
 	} else if diff > constant.DEFAULT_SUCCESSIVE_FAILED_REQUEST_MAX_DIFF {
 		diff = constant.DEFAULT_SUCCESSIVE_FAILED_REQUEST_MAX_DIFF
 	}
-	sleepWindow := (1 << diff) * c.GetCircuitTrippedTimeoutFactor()
+	sleepWindow := (1 << uint(diff)) * c.GetCircuitTrippedTimeoutFactor()
 	if sleepWindow > constant.MAX_CIRCUIT_TRIPPED_TIMEOUT_IN_MS {
 		sleepWindow = constant.MAX_CIRCUIT_TRIPPED_TIMEOUT_IN_MS
 	}
diff --git a/common/extension/health_checker.go b/common/extension/health_checker.go
index 8def727614..cec4c2defc 100644
--- a/common/extension/health_checker.go
+++ b/common/extension/health_checker.go
@@ -26,8 +26,8 @@ var (
 	healthCheckers = make(map[string]func(url *common.URL) router.HealthChecker)
 )
 
-// SethealthChecker sets the HealthChecker with @name
-func SethealthChecker(name string, fcn func(_ *common.URL) router.HealthChecker) {
+// SetHealthChecker sets the HealthChecker with @name
+func SetHealthChecker(name string, fcn func(_ *common.URL) router.HealthChecker) {
 	healthCheckers[name] = fcn
 }
 
diff --git a/common/extension/health_checker_test.go b/common/extension/health_checker_test.go
index 4e83a6f6e1..af6b114a61 100644
--- a/common/extension/health_checker_test.go
+++ b/common/extension/health_checker_test.go
@@ -32,7 +32,7 @@ import (
 )
 
 func TestGetHealthChecker(t *testing.T) {
-	SethealthChecker("mock", newMockhealthCheck)
+	SetHealthChecker("mock", newMockHealthCheck)
 	checker := GetHealthChecker("mock", common.NewURLWithOptions())
 	assert.NotNil(t, checker)
 }
@@ -44,6 +44,6 @@ func (m mockHealthChecker) IsHealthy(invoker protocol.Invoker) bool {
 	return true
 }
 
-func newMockhealthCheck(_ *common.URL) router.HealthChecker {
+func newMockHealthCheck(_ *common.URL) router.HealthChecker {
 	return &mockHealthChecker{}
 }