Cannot read snapshot file – How to solve related issues

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Cannot read snapshot file – How to solve related issues

Opster Team

Jan-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 ” Cannot read snapshot file ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: blobstore, discovery-file, repositories, repository-azure and snapshot.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Cannot read snapshot file [{}]” classname is BlobStoreRepository.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         try {
            snapshot = getSnapshotInfo(snapshotId);
        } catch (SnapshotMissingException ex) {
            throw ex;
        } catch (IllegalStateException | SnapshotException | ElasticsearchParseException ex) {
            logger.warn(() -> new ParameterizedMessage("cannot read snapshot file [{}]"; snapshotId); ex);
        }

        try {
            // Delete snapshot from the index file; since it is the maintainer of truth of active snapshots
            final RepositoryData updatedRepositoryData = repositoryData.removeSnapshot(snapshotId);




 

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