Unable to archive the repository stats as the archive is full – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when the archive designated for storing repository statistics in OpenSearch is full. This means there’s no more space to store additional data. To resolve this issue, you can either increase the storage capacity of the archive, delete some unnecessary data from the archive, or configure OpenSearch to use a different archive with more available space. Additionally, you could also consider compressing the data in the archive to free up some space.

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This guide will help you check for common problems that cause the log ” Unable to archive the repository stats [{}] as the archive is full. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: repository, repositories.

Log Context

Log “Unable to archive the repository stats [{}] as the archive is full.” classname is RepositoriesService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

    private void archiveRepositoryStats(Repository repository; long clusterStateVersion) {
        if (repository instanceof MeteredBlobStoreRepository) {
            RepositoryStatsSnapshot stats = ((MeteredBlobStoreRepository) repository).statsSnapshotForArchival(clusterStateVersion);
            if (repositoriesStatsArchive.archive(stats) == false) {
                logger.warn("Unable to archive the repository stats [{}] as the archive is full."; stats);



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