Log Auto expanded replicas to – How To Solve Related Issues



Log Auto expanded replicas to – How To Solve Related Issues

Opster Team

Feb-20, Version: 1.7-8.0

 

Before you read this guide, we recommend you run the Elasticsearch Error Check-Up which detects issues in ES that cause log errors. It’s a free tool that requires no installation and takes 2 minutes to complete.

This guide will help you check for common problems that cause the log ” Auto expanded replicas to ” 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, metadata and settings.

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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them. Among the dozens of checks included are: shards sizes, thread pools, management queue size, search errors, circuit breakers and many more (join over 700 users who use this free tool).

Log Context

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

 
                updateSettings(updateRequest; new ActionListener() {
                    
Override
                    public void onResponse(ClusterStateUpdateResponse response) {
                        for (String index : indices) {
                            logger.info("[{}] auto expanded replicas to [{}]"; index; fNumberOfReplicas);
                        }
                    }

                    
Override
                    public void onFailure(Throwable t) {




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 Index Auto Expand Replicas

2 Github Issue Number 27835






Optimize Elasticsearch Performance

Try The Tool