–> failed fetching frozen cache info from discoveryNode – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

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Briefly, this error occurs when Elasticsearch is unable to retrieve frozen cache information from a discovery node. This could be due to network issues, node unavailability, or misconfiguration. To resolve this, you can check the network connectivity between nodes, ensure the discovery node is up and running, and verify the configuration settings. If the issue persists, consider restarting the Elasticsearch cluster or increasing the timeout settings.

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This guide will help you check for common problems that cause the log ” –> failed fetching frozen cache info from [” + discoveryNode + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, discovery, cache, node.

Log Context

Log “–> failed fetching frozen cache info from [” + discoveryNode + “]” classname is FrozenCacheInfoService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


        public void onFailure(Exception e) {
            logger.debug(() -> "--> failed fetching frozen cache info from [" + discoveryNode + "]"; e);
            // Failed even to execute the nodes info action; just give up

        private void retryOrRecordFailure(Exception e) {


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