Failed to cache check result for – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is unable to cache the result of a check operation, possibly due to insufficient memory or disk space. To resolve this issue, you can try increasing the memory allocation for Elasticsearch, freeing up disk space, or checking for any issues with the caching configuration. Additionally, ensure that the Elasticsearch version you’re using doesn’t have any known bugs related to caching.

This guide will help you check for common problems that cause the log ” Failed to cache check result for [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, cache.

Log Context

Log “Failed to cache check result for [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            listener = originalListener.delegateFailure((delegateListener; privilegesCheckResult) -> {
                try {
                    simpleRole.cacheHasPrivileges(settings; privilegesToCheck; privilegesCheckResult);
                } catch (Exception e) {
                    logger.error("Failed to cache check result for [{}]"; privilegesToCheck);


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