Failed to sync restore state after master switch – 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 analyzes 2 JSON files to detect many errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Failed to sync restore state after master switch ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: master and restore.

Log Context

Log “failed to sync restore state after master switch” classname is RestoreService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                         return resyncRestoreInProgressWithRoutingTable(currentState);
                    }

                    
Override
                    public void onFailure(String source; Exception e) {
                        logger.warn("failed to sync restore state after master switch"; e);
                    }
                });
            }
        }
    }



 

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