Fail to auto expand replicas to – How to solve related issues

Fail to auto expand replicas to – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Fail to auto expand 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 (free tool that requires no installation).

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 :

                     }

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



 

Run the Check-Up to get a customized report like this:

Analyze your cluster