Error during snapshot retention task – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.5-8.9

Briefly, this error occurs when Elasticsearch encounters an issue while performing a snapshot retention task. This could be due to insufficient disk space, incorrect snapshot repository configuration, or network connectivity issues. To resolve this, you can check if there’s enough disk space and if the snapshot repository is correctly configured. Also, ensure that the Elasticsearch cluster has proper network connectivity. If the issue persists, consider checking the Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” error during snapshot retention task ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, task, snapshot.

Log Context

Log “error during snapshot retention task” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        final SnapshotLifecycleStats slmStats = new SnapshotLifecycleStats();

        // Defined here so it can be re-used without having to repeat it
        final Consumer failureHandler = e -> {
            try {
                logger.error("error during snapshot retention task"; e);
            } finally {
      "SLM retention snapshot cleanup task completed with error");


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