Log Failed to snapshot shard – How To Solve Related Issues

Log Failed to snapshot shard – How To Solve Related Issues

Opster Team

Jan-20, 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 that cause many errors.

This guide will help you check for common problems that cause the log ” Failed to snapshot shard ” 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: shards, snapshot and snapshots.

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 “[{}][{}] failed to snapshot shard” classname is SnapshotShardsService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     snapshot(indexShard; snapshot; indexId; shardEntry.getValue());

                public void onFailure(Exception e) {
                    logger.warn(() -> new ParameterizedMessage("[{}][{}] failed to snapshot shard"; shardId; snapshot); e);

                public void onRejection(Exception e) {


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