Briefly, this error occurs when the Elasticsearch license has expired and the grace period has also ended. This means that some features of Elasticsearch may stop working. To resolve this issue, you can either update your license if you have a new one, or revert to the basic free license. If you’re using a commercial license, contact your support or sales representative to get a new license. If you’re using a trial license, consider upgrading to a commercial license or switching to the basic license.
This guide will help you check for common problems that cause the log ” license [{}] – grace ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: license, plugin.
Log Context
Log “license [{}] – grace” classname is LicenseService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (active) {
if (time
