Unable to clear API key cache %s – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.6-8.9

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Briefly, this error occurs when Elasticsearch fails to clear the API key cache due to insufficient permissions or a system error. To resolve this issue, you can try the following: 1) Check the user permissions to ensure they have the necessary rights to clear the cache. 2) Restart the Elasticsearch service to clear any temporary system errors. 3) Check the Elasticsearch logs for any specific error messages that could indicate the root cause of the problem.

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This guide will help you check for common problems that cause the log ” unable to clear API key cache [%s] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, cache.

Log Context

Log “unable to clear API key cache [%s]” classname is ApiKeyService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                listener.onResponse(result);
            }

            @Override
            public void onFailure(Exception e) {
                logger.error(() -> format("unable to clear API key cache [%s]"; clearApiKeyCacheRequest.cacheName()); e);
                listener.onFailure(new ElasticsearchException("clearing the API key cache failed; please clear the caches manually"; e));
            }
        });
    }

 

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