Clearing the role cache failed please clear the role cache manually – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.8

Briefly, this error occurs when Elasticsearch is unable to automatically clear its role cache due to issues like insufficient permissions or system errors. The role cache stores user role information for faster access. To resolve this, you can manually clear the role cache using the Clear Roles Cache API. If the issue persists, check the Elasticsearch logs for more detailed error information. Also, ensure that the user executing the command has the necessary permissions. Lastly, consider checking the system health as hardware issues can also cause this error.

This guide will help you check for common problems that cause the log ” clearing the role cache failed. please clear the role cache manually ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, cache.

Log Context

Log “clearing the role cache failed. please clear the role cache manually” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 public void onFailure(Exception e) {
 logger.error("unable to clear role cache"; e);
 new ElasticsearchException("clearing the role cache failed. please clear the role cache manually"; e));
 }; securityClient::clearRolesCache);
 }  private ApplicationPrivilegeDescriptor buildPrivilege(String docId; BytesReference source) {