Briefly, this error occurs when Elasticsearch successfully loads a plugin. It’s not an error message but an informational message indicating that a plugin has been loaded correctly. If you see this message, it means your plugin is installed and working properly. If you didn’t intend to load a plugin, check your Elasticsearch configuration and remove any unwanted plugins. If a plugin is causing issues, consider updating it, replacing it, or seeking support from the plugin’s developer.
This guide will help you check for common problems that cause the log ” loaded plugin [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, plugins.
Log Context
Log “loaded plugin [{}]” classname is PluginsService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
// but for now: just be transparent so we can debug any potential issues for (String name : loadedPlugins.keySet()) { if (moduleNameList.contains(name)) { logger.info("loaded module [{}]"; name); } else { logger.info("loaded plugin [{}]"; name); } } } // package-private for testing