Notifying of new cluster info – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is trying to update nodes about changes in the cluster state, but encounters issues. This could be due to network problems, node failures, or configuration issues. To resolve this, you can check the network connectivity between nodes, ensure all nodes are functioning properly, and verify your cluster configuration. Additionally, check your OpenSearch logs for more detailed error messages that can provide further insight into the problem.

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

Log Context

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

        ClusterInfo clusterInfo = getClusterInfo();
        boolean anyListeners = false;
        for (final Consumer listener : listeners) {
            anyListeners = true;
            try {
                logger.trace("notifying [{}] of new cluster info"; listener);
            } catch (Exception e) {
       ParameterizedMessage("failed to notify [{}] of new cluster info"; listener); e);


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