How To Solve Issues Related to Log – Exception thrown by listener while notifying no longer master from

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Updated: Feb-20

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Troubleshooting background

To troubleshoot Elasticsearch log “Exception thrown by listener while notifying no longer master from” it’s important to understand common problems related to Elasticsearch concepts: cluster, master. 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 :

1 ElasticSearch – RestHighLevelClient – listener timeout after waiting for [30000] ms 4.03 K 2

2Github Issue Number 10317  


Log Context

Log ”exception thrown by listener while notifying no longer master from [{}]” classname is InternalClusterService.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

         
Override
        public void onNoLongerMaster(String source) {
            try {
                listener.onNoLongerMaster(source);
            } catch (Exception e) {
                logger.error("exception thrown by listener while notifying no longer master from [{}]"; e; source);
            }
        }

        
Override
        public void clusterStateProcessed(String source; ClusterState oldState; ClusterState newState) {




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