Failed to set task to failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.11-8.3

Briefly, this error occurs when Elasticsearch is unable to update the status of a task to “failed”. This could be due to a variety of reasons such as insufficient permissions, network issues, or a problem with the Elasticsearch cluster itself. To resolve this issue, you can check the user permissions, ensure the network connectivity is stable, and verify the health of the Elasticsearch cluster. If the problem persists, consider checking the Elasticsearch logs for more detailed error information.

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

Log Context

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

                // We need to update cluster state so the API caller can be notified and exit
                // As we have not set the task state to STARTED; it might still be waiting.
                    new SnapshotUpgradeTaskState(SnapshotUpgradeState.FAILED; -1; e.getMessage());
                    ActionListener.wrap(r -> task.markAsFailed(e); failure -> {
                        logger.warn(new ParameterizedMessage("[{}] [{}] failed to set task to failed"; jobId; snapshotId); failure);


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