Failed while applying cluster state locally – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-6.8

Briefly, this error occurs when a node in the Elasticsearch cluster fails to apply the new cluster state locally. This could be due to a variety of reasons such as insufficient resources, network issues, or a corrupted index. To resolve this issue, you can try increasing the resources allocated to Elasticsearch, checking the network connectivity between nodes, or repairing the corrupted index. If the problem persists, consider restarting the node or the entire cluster.

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

Log Context

Log “failed while applying cluster state locally [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            public void onFailure(String source; Exception e) {
                ackListener.onNodeAck(transportService.getLocalNode(); e);
                logger.warn(() -> new ParameterizedMessage("failed while applying cluster state locally [{}]"; event.source()); e);
        clusterApplier.onNewClusterState("apply-locally-on-node[" + event.source() + "]"; () -> clusterState; listener);

        try {


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