Make operator more resiliant to etcd defrag activity (open-telemetry#742

)

* Make operator more resiliant to etcd defrag activity

Signed-off-by: Pavol Loffay <p.loffay@gmail.com>

* Fix

Signed-off-by: Pavol Loffay <p.loffay@gmail.com>

main.go

@@ -21,6 +21,7 @@ import (
 	"os"
 	"runtime"
 	"strings"
+	"time"
 
 	"github.com/spf13/pflag"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -135,6 +136,10 @@ func main() {
 		setupLog.Info("the env var WATCH_NAMESPACE isn't set, watching all namespaces")
 	}
 
+	// see https://github.com/openshift/library-go/blob/4362aa519714a4b62b00ab8318197ba2bba51cb7/pkg/config/leaderelection/leaderelection.go#L104
+	leaseDuration := time.Second * 137
+	renewDeadline := time.Second * 107
+	retryPeriod := time.Second * 26
 	mgrOptions := ctrl.Options{
 		Scheme:                 scheme,
 		MetricsBindAddress:     metricsAddr,
@@ -143,6 +148,9 @@ func main() {
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "9f7554c3.opentelemetry.io",
 		Namespace:              watchNamespace,
+		LeaseDuration:          &leaseDuration,
+		RenewDeadline:          &renewDeadline,
+		RetryPeriod:            &retryPeriod,
 	}
 
 	if strings.Contains(watchNamespace, ",") {