How To Solve Issues Related to Log – Failed to fetch fs stats – returning empty instance

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Troubleshooting background

To troubleshoot Elasticsearch log “Failed to fetch fs stats – returning empty instance” it’s important to know common problems related to Elasticsearch concepts: monitor. See below-detailed explanations complete with common problems, examples and useful tips.

To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

ElasticSearch find disk space usage

Number of Views : 52.25 K  Score on Stackoverflow : 51

Github Issue Number 18279


Log Context

Log ”Failed to fetch fs stats – returning empty instance” classname is
We have extracted the following from Elasticsearch source code to get an in-depth context :

        protected FsInfo refresh() {
            try {
                return probe.stats();
            } catch (IOException ex) {
                logger.warn("Failed to fetch fs stats - returning empty instance");
                return new FsInfo();

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