notification queue limit has no maxLimit (#9380)

New value defaults to 100K events by default,
but users can tune this value upto any value
they seem necessary.

* increase the limit to maxint64 while validating

pkg/event/target/amqp.go

@@ -101,9 +101,6 @@ func (a *AMQPArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if a.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/elasticsearch.go

@@ -74,9 +74,6 @@ func (a ElasticsearchArgs) Validate() error {
 	if a.Index == "" {
 		return errors.New("empty index value")
 	}
-	if a.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 	return nil
 }
 

pkg/event/target/kafka.go

@@ -110,9 +110,6 @@ func (k KafkaArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if k.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 	if k.Version != "" {
 		if _, err := sarama.ParseKafkaVersion(k.Version); err != nil {
 			return err

pkg/event/target/mqtt.go

@@ -99,9 +99,6 @@ func (m MQTTArgs) Validate() error {
 			return errors.New("qos should be set to 1 or 2 if queueDir is set")
 		}
 	}
-	if m.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/mysql.go

@@ -161,9 +161,6 @@ func (m MySQLArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if m.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/nats.go

@@ -136,9 +136,6 @@ func (n NATSArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if n.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/nsq.go

@@ -80,9 +80,6 @@ func (n NSQArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if n.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/postgresql.go

@@ -159,9 +159,6 @@ func (p PostgreSQLArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if p.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/queuestore.go

@@ -30,8 +30,8 @@ import (
 )
 
 const (
-	maxLimit = 10000 // Max store limit.
-	eventExt = ".event"
+	defaultLimit = 100000 // Default store limit.
+	eventExt     = ".event"
 )
 
 // QueueStore - Filestore for persisting events.
@@ -45,7 +45,7 @@ type QueueStore struct {
 // NewQueueStore - Creates an instance for QueueStore.
 func NewQueueStore(directory string, limit uint64) Store {
 	if limit == 0 {
-		limit = maxLimit
+		limit = defaultLimit
 		_, maxRLimit, err := sys.GetMaxOpenFileLimit()
 		if err == nil {
 			// Limit the maximum number of entries

pkg/event/target/redis.go

@@ -89,9 +89,6 @@ func (r RedisArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if r.QueueLimit > 10000 {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 
 	return nil
 }

pkg/event/target/webhook.go

@@ -70,9 +70,6 @@ func (w WebhookArgs) Validate() error {
 			return errors.New("queueDir path should be absolute")
 		}
 	}
-	if w.QueueLimit > maxLimit {
-		return errors.New("queueLimit should not exceed 10000")
-	}
 	return nil
 }