Unable to fetch available snapshots for shard %s – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.4-8.9

Briefly, this error occurs when Elasticsearch cannot retrieve the available snapshots for a specific shard ‘s’. This could be due to issues with the snapshot repository, network connectivity, or insufficient permissions. To resolve this, you can verify the repository’s configuration and its connectivity. Also, ensure that Elasticsearch has the necessary permissions to access the repository. If the issue persists, consider checking the health of the shard and if necessary, perform a shard reallocation or recovery.

This guide will help you check for common problems that cause the log ” Unable to fetch available snapshots for shard %s ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, recovery, shard.

Log Context

Log “Unable to fetch available snapshots for shard %s” classname is SnapshotsRecoveryPlannerService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


            public void onFailure(Exception e) {
                logger.warn(() -> format("Unable to fetch available snapshots for shard %s"; shardId); e);

        shardSnapshotsService.fetchLatestSnapshotsForShard(shardId; listenerIgnoringErrors);