@@ -88,6 +88,7 @@ Now, we have the following known optional plugins.
*[Filter traces through specified endpoint name patterns](agent-optional-plugins/trace-ignore-plugin.md)
* Gson serialization lib in optional plugin folder
* Lettuce 5.x(JRE1.8+) in optional plugin folder
* Zookeeper 3.4.x in optional plugin folder. The reason of being optional plugin is, many business irrelevant traces are generated, which cause extra payload to agents and backends. At the same time, those traces may be just heartbeat(s).
## Advanced Features
* Set the settings through system properties for config file override. Read [setting override](Setting-override.md).