Failed to notify of new cluster info – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.4-8.2

Briefly, this error occurs when Elasticsearch is unable to update the cluster state due to network issues, node failures, or configuration problems. To resolve this issue, you can try the following: 1) Check the network connectivity between the nodes. 2) Verify the health of the nodes in the cluster. 3) Review the cluster settings and configurations to ensure they are correct. 4) Restart the Elasticsearch service on the affected nodes. 5) If the problem persists, consider increasing the cluster state update timeout value.

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

Log Context

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

                        anyListeners = true;
                        try {
                            logger.trace("notifying [{}] of new cluster info"; listener);
                        } catch (Exception e) {
                   ParameterizedMessage("failed to notify [{}] of new cluster info"; listener); e);
                    assert anyListeners : "expected to notify at least one listener";

                    for (final ActionListener listener : thisRefreshListeners) {


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