No longer master – Elasticsearch Error How To Solve Related Issues



No longer master – 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 “no longer master” 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: master.


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”no longer master”classname  is SnapshotsService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

// We have snapshot listeners but are not the master any more. Fail all waiting listeners except for those that already
  // have their snapshots finalizing (those that are already finalizing will fail on their own from to update the cluster
  // state).
  for (Snapshot snapshot : Set.copyOf(snapshotCompletionListeners.keySet())) {
  if (endingSnapshots.add(snapshot)) {
  failSnapshotCompletionListeners(snapshot; new SnapshotException(snapshot; "no longer master"));
  }
  }
  }
  } catch (Exception e) {
  assert false : new AssertionError(e);

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 Masters leave for no apparent reason – Elasticsearch – Discuss the …  

Masters leave for no apparent reason – Elasticsearch – Discuss the …  



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