System index cannot be mounted as searchable snapshots – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration 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 ” system index cannot be mounted as searchable snapshots ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, index.

Log Context

Log “system index [{}] cannot be mounted as searchable snapshots”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

) {
 final String mountedIndexName = request.mountedIndexName();
 if (systemIndices.isSystemIndex(mountedIndexName)) {
 throw new ElasticsearchException("system index [{}] cannot be mounted as searchable snapshots"; mountedIndexName);
 final String repoName = request.repositoryName();
 final String snapName = request.snapshotName();
 final String indexName = request.snapshotIndexName();


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