Failed to retrieve stats for node failure nodeId – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is unable to fetch statistics for a specific node identified by its nodeId. This could be due to network issues, node failure, or incorrect nodeId. To resolve this, you can first verify the nodeId and ensure it’s correct. If the nodeId is correct, check the health of the node and the network connection. If the node is down, restart it. If the network is the issue, ensure proper connectivity. Also, check Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” failed to retrieve stats for node [” + failure.nodeId() + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, node.

Log Context

Log “failed to retrieve stats for node [” + failure.nodeId() + “]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                public void onResponse(NodesStatsResponse nodesStatsResponse) {
                    logger.trace("received node stats response");

                    for (final FailedNodeException failure : nodesStatsResponse.failures()) {
                        logger.warn(() -> "failed to retrieve stats for node [" + failure.nodeId() + "]"; failure.getCause());

                    Map leastAvailableUsagesBuilder = new HashMap();
                    Map mostAvailableUsagesBuilder = new HashMap();