How To Solve Log Unexpected failure applying – Elasticsearch

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Troubleshooting background

To troubleshoot Elasticsearch log “Unexpected failure applying” it’s important to know common problems related to Elasticsearch concepts: discovery. See below-detailed explanations complete with common problems, examples and useful tips.


Log Context

Log ”Unexpected failure applying” classname is ZenDiscovery.java
To help get the right context about this log, we have extracted the following from Elasticsearch source code

                     }
                }

                
Override
                public void onFailure(String source; Exception e) {
                    logger.error(() -> new ParameterizedMessage("unexpected failure applying [{}]"; reason); e);
                    try {
                        // TODO: use cluster state uuid instead of full cluster state so that we don't keep reference to CS around
                        // for too long.
                        pendingStatesQueue.markAsFailed(newClusterState; e);
                    } catch (Exception inner) {





To help troubleshoot related issues we have gathered selected answers from STOF & Discuss and issues from Github, please review the following for further information :

TFS 2018, code search and work item search returns error: Unexpected error in search service
stackoverflow.com/questions/47923433/tfs-2018-code-search-and-work-item-search-returns-error-unexpected-error-in-se

Number of Views : 1.48 K  Score on Stackoverflow : 1

Github Issue Number 32767
github.com/elastic/elasticsearch/issues/32767

 


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