Failed to remove snapshot deletion metadata – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch fails to delete the metadata associated with a snapshot that has been removed. This could be due to issues with the underlying storage system, network connectivity, or permissions. To resolve this, you can try the following: 1) Check and ensure that the storage system is functioning properly and has sufficient space. 2) Verify network connectivity between OpenSearch and the storage system. 3) Ensure OpenSearch has the necessary permissions to delete files from the storage system. 4) Retry the snapshot deletion operation.

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This guide will help you check for common problems that cause the log ” {} failed to remove snapshot deletion metadata ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: snapshot, metadata.

Log Context

Log “{} failed to remove snapshot deletion metadata” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

            return res.v1();

        public void onFailure(String source; Exception e) {
            logger.warn(() -> new ParameterizedMessage("{} failed to remove snapshot deletion metadata"; deleteEntry); e);

        protected SnapshotDeletionsInProgress filterDeletions(SnapshotDeletionsInProgress deletions) {


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