How To Solve Issues Related to Log – Failed to send ping to

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Updated: Dec-19

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Troubleshooting background

To troubleshoot Elasticsearch log “Failed to send ping to” it’s important to understand common problems related to Elasticsearch concepts: discovery-azure-classic, ping. See detailed explanations below 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 :

 

 


Log Context

Log ”Failed to send ping to [{}]” classname is UnicastZenPing.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

                 if (exp instanceof ConnectTransportException || exp.getCause() instanceof ConnectTransportException ||

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