Failed to store async-search – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.7-8.2

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Briefly, this error occurs when Elasticsearch is unable to save the results of an asynchronous search operation. This could be due to insufficient disk space, network connectivity issues, or problems with the underlying storage system. To resolve this issue, you can try freeing up disk space, checking network connectivity, or investigating the health of your storage system. Additionally, ensure that the user running Elasticsearch has the necessary permissions to write to the directory where search results are stored.

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

Log Context

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

            if (isFailure) {
            } else {
                Throwable cause = ExceptionsHelper.unwrapCause(e);
                if (cause instanceof DocumentMissingException == false && cause instanceof VersionConflictEngineException == false) {
                    logger.error(() -> new ParameterizedMessage("failed to store async-search [{}]"; docId); e);
                    ActionListener newListener = listener;


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