Non-failed nodes do not form a quorum – Elasticsearch Error How To Solve Related Issues



Non-failed nodes do not form a quorum – 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 “non-failed nodes do not form a quorum” 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”non-failed nodes do not form a quorum”classname  is Publication.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 
  if (isPublishQuorum(possiblySuccessfulNodes) == false) {
  logger.debug("onPossibleCommitFailure: non-failed nodes {} do not form a quorum; so {} cannot succeed";
  possiblySuccessfulNodes; this);
  Exception e = new FailedToCommitClusterStateException("non-failed nodes do not form a quorum");
  publicationTargets.stream().filter(PublicationTarget::isActive).forEach(pt -> pt.setFailed(e));
  onPossibleCompletion();
  }
  }

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 How does Elasticsearch recover from a quorum that is not unanimous -views 497 ,score 1

ES 7.2.0 Master fails to join cluster – Elasticsearch – Discuss the …  



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