Refreshed keys – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch updates or refreshes the keys in its index. This is a normal process that happens when new data is added or existing data is updated. However, if this process is happening too frequently or taking too long, it could indicate a problem with your data structure or indexing strategy. To resolve this issue, you could consider optimizing your indexing strategy, reducing the amount of data being indexed, or increasing the resources available to Elasticsearch.

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This guide will help you check for common problems that cause the log ” refreshed keys ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “refreshed keys” classname is TokenService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                try {
                    refreshMetadata(custom);
                } catch (Exception e) {
                    logger.warn("refreshing metadata failed"; e);
                }
                logger.info("refreshed keys");
            }
        });
    }

    // to prevent too many cluster state update tasks to be queued for doing the same update

 

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