Alibaba Cloud Elasticsearch supports all the plug-ins of open-source Elasticsearch and also provides some self-developed plug-ins. This topic provides an overview of these plug-ins.

- Built-in plug-ins
In most cases, you can install or remove a built-in plug-in of Alibaba Cloud Elasticsearch as required. For more information, see Install and remove a built-in plug-in.
However, you cannot remove the analysis-ik and elasticsearch-repository-oss plug-ins. You can use the standard update or rolling update method to update custom dictionaries with the analysis-ik plug-in. For more information, see Update IK dictionaries.
- Custom plug-ins
You can upload, install, and remove custom plug-ins to meet your business requirements. For more information, see Custom plug-ins.