Log Fail to auto expand replicas to – How To Solve Related Issues

Log Fail to auto expand replicas to – How To Solve Related Issues

Updated: Feb-20

Elasticsearch Version: 1.7-8.0


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To troubleshoot log “Fail to auto expand replicas to” it’s important to understand a few problems related to Elasticsearch concepts cluster, metadata, settings. See bellow important tips and explanations on these concepts

Log Context

Log”[{}] fail to auto expand replicas to [{}]” classname is MetaDataUpdateSettingsService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


                    public void onFailure(Throwable t) {
                        for (String index : indices) {
                            logger.warn("[{}] fail to auto expand replicas to [{}]"; index; fNumberOfReplicas);

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 Github Issue Number 27835  

Elasticsearch 6 1 2 Keeps Going Dow  


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