How To Solve Issues Related to Log – Unexpected error while pinging

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Related Issues – selected resources on related issues  
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Troubleshooting background

To troubleshoot Elasticsearch log “Unexpected error while pinging” it’s important to know common problems related to Elasticsearch concepts: discovery, ping. 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 :

Unexpected error when connecting to ES cluster using SniffingConnectionPool
stackoverflow.com/questions/50121418/unexpected-error-when-connecting-to-es-cluster-using-sniffingconnectionpool

Number of Views : 0.05 K  Score on Stackoverflow :

Elasticsearch Exception Unexpected
discuss.elastic.co/t/elasticsearch-exception-unexpected-error-while-indexing-monitoring-document/139817

 


Log Context

Log ”Unexpected error while pinging” classname is UnicastZenPing.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

         activePingingRounds.put(pingingRound.id(); pingingRound);
        final AbstractRunnable pingSender = new AbstractRunnable() {
            
Override
            public void onFailure(Exception e) {
                if (e instanceof AlreadyClosedException == false) {
                    logger.warn("unexpected error while pinging"; e);
                }
            }

            
Override
            protected void doRun() throws Exception {




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