Logger warn message params – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-6.8

Briefly, this error occurs when Elasticsearch encounters an issue with logging. It’s a warning message indicating that there might be a problem with the parameters used in the logging process. To resolve this issue, you can start by checking the logging configuration in your Elasticsearch setup. Ensure that the parameters are correctly set. If the problem persists, consider reviewing your application’s code to ensure that the correct parameters are being passed to the logger. Also, ensure that your Elasticsearch version is compatible with your logging configuration.

This guide will help you check for common problems that cause the log ” Logger.warn(message; params); ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: deprecation.

Log Context

Log “Logger.warn(message; params);” classname is DeprecationLogger.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


        if (log) {
            logger.warn(message; params);

     * Format a warning string in the proper warning format by prepending a warn code; warn agent; wrapping the warning string in quotes;


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?