Became follower – Elasticsearch Error How To Solve Related Issues



Became follower – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 

 

This guide will help you check for common problems that cause the log “became follower” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: cluster.


Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”became follower”classname  is JoinHelper.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

masterService.submitStateUpdateTasks(stateUpdateSource; pendingAsTasks; ClusterStateTaskConfig.build(Priority.URGENT);
  joinTaskExecutor);
  } else {
  assert newMode == Mode.FOLLOWER : newMode;
  joinRequestAccumulator.values().forEach(joinCallback -> joinCallback.onFailure(
  new CoordinationStateRejectedException("became follower")));
  }
 
  // CandidateJoinAccumulator is only closed when becoming leader or follower; otherwise it accumulates all joins received
  // regardless of term.
  }

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Elasticsearc with xpack security enabled – Elasticsearch – Discuss …  

Elasticsearc with xpack security enabled – Elasticsearch – Discuss …  



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