Failed to store task result retrying in wait – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is unable to store the result of a task due to issues like insufficient disk space, network connectivity problems, or a misconfigured cluster. To resolve this, you can free up disk space, ensure the network connection is stable, and check the cluster configuration. Also, verify the task management settings in Elasticsearch and adjust them if necessary. If the problem persists, consider increasing the task result retention period or the maximum size of the task results index.

This guide will help you check for common problems that cause the log ” failed to store task result; retrying in [” + wait + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task.

Log Context

Log “failed to store task result; retrying in [” + wait + “]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            public void onFailure(Exception e) {
                if (false == (e instanceof EsRejectedExecutionException) || false == backoff.hasNext()) {
                } else {
                    TimeValue wait =;
                    logger.warn(() -> "failed to store task result; retrying in [" + wait + "]"; e);
                    threadPool.schedule(() -> doStoreResult(backoff; index; listener); wait; ThreadPool.Names.SAME);


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