Failed to fetch state from node – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch is unable to retrieve the cluster state from a specific node. This could be due to network issues, node failure, or the node being overwhelmed with requests. To resolve this issue, you can try restarting the node, checking the network connectivity, or scaling up the node if it’s consistently overwhelmed. Additionally, ensure that the Elasticsearch version is consistent across all nodes to avoid compatibility issues.

This guide will help you check for common problems that cause the log ” failed to fetch state from node ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: node.

Log Context

Log “failed to fetch state from node” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        final int requiredAllocation = Math.max(1; minimumMasterNodes);

        if (nodesState.hasFailures()) {
            for (final FailedNodeException failedNodeException : nodesState.failures()) {
                logger.warn("failed to fetch state from node"; failedNodeException);

        final ObjectFloatHashMap indices = new ObjectFloatHashMap();
        Metadata electedGlobalState = null;


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