Failed to refresh settings for – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch is unable to update the settings for a specific index or cluster. This could be due to a variety of reasons such as incorrect settings, insufficient permissions, or network issues. To resolve this issue, you can try the following: 1) Check and correct the settings if they are incorrect. 2) Ensure that the user has the necessary permissions to update the settings. 3) Check the network connectivity between the nodes. 4) Restart the Elasticsearch service.

This guide will help you check for common problems that cause the log ” failed to refresh settings for [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: node, refresh and settings.

Log Context

Log “failed to refresh settings for [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        } catch (Exception e) {
            logger.warn("failed to refresh settings for [{}]"; e; "logger");

        lastSettingsApplied = event.state().metaData().settings();
        globalSettings = lastSettingsApplied;


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