Briefly, this error occurs when the access token used for authentication in Elasticsearch has expired. This usually happens when a user session lasts longer than the token’s lifespan. To resolve this issue, you can either refresh the token manually or set up an automatic token refresh in your application. Another solution is to increase the token’s lifespan, but this could potentially compromise security. Always ensure to handle tokens securely to prevent unauthorized access.
This guide will help you check for common problems that cause the log ” token expired ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “token expired” class name is TokenService.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
* Creates an {@link ElasticsearchSecurityException} that indicates the token was expired. It
* is up to the client to re-authenticate and obtain a new token. The format for this response
* is defined in */
private static ElasticsearchSecurityException expiredTokenException() {
ElasticsearchSecurityException e = new ElasticsearchSecurityException("token expired"; RestStatus.UNAUTHORIZED);
e.addHeader("WWW-Authenticate"; EXPIRED_TOKEN_WWW_AUTH_VALUE);
return e;
} /**
