Is already failed but encountered new failure reason – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.4-8.9

Briefly, this error occurs when Elasticsearch has already encountered a failure and is in a failed state, but it encounters another new failure reason. This could be due to various reasons such as hardware issues, network problems, or configuration errors. To resolve this issue, you can try the following: 1) Check the Elasticsearch logs for more detailed error messages. 2) Verify the hardware and network connections. 3) Review and correct any configuration errors. 4) Restart the Elasticsearch service. If the problem persists, you may need to consider restoring from a backup or reindexing your data.

This guide will help you check for common problems that cause the log ” [{}] is already failed but encountered new failure; reason [{}]. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “[{}] is already failed but encountered new failure; reason [{}].” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

    public void fail(String reason; ActionListener listener) {
        synchronized (context) {
            // If we are already flagged as failed; this probably means that a second trigger started firing while we were attempting to
            // flag the previously triggered indexer as failed. Exit early as we are already flagged as failed.
            if (context.getTaskState() == TransformTaskState.FAILED) {
                logger.warn("[{}] is already failed but encountered new failure; reason [{}]."; getTransformId(); reason);
            // If the indexer is `STOPPING` this means that `TransformTask#stop` was called previously; but something caused
            // the indexer to fail. Since `ClientTransformIndexer#doSaveState` will persist the state to the index once the indexer stops;


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