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

Opster Team

Aug-23, Version: 7.12-8

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Briefly, this error occurs when Elasticsearch is unable to fetch statistics for a specific node, possibly due to network issues, node failure, or incorrect configuration. To resolve this, you can check the network connectivity between nodes, ensure the node is running properly, or verify the node’s configuration settings. Additionally, checking the Elasticsearch logs may provide more detailed information about the cause of the error.

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This guide will help you check for common problems that cause the log ” failed to retrieve stats for node [{}] ” 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 [{}]” classname is InternalClusterInfoService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    logger.trace("received node stats response");

                    for (final FailedNodeException failure : nodesStatsResponse.failures()) {
                        final Throwable cause = failure.getCause();
                        if (logger.isDebugEnabled()) {
                            logger.warn(new ParameterizedMessage("failed to retrieve stats for node [{}]"; failure.nodeId()); cause);
                        } else {
                            logger.warn("failed to retrieve stats for node [{}]: {}"; failure.nodeId(); cause.getMessage());
                        }
                    }

 

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