Failed to update restore state – 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 update the state of a restore operation. This could be due to insufficient permissions, network connectivity issues, or a problem with the cluster state. To resolve this issue, you can check and adjust the user permissions, ensure the network connection is stable, and verify the health of the cluster. If the problem persists, consider restarting the OpenSearch service or reattempting the restore operation.

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This guide will help you check for common problems that cause the log ” Failed to update restore state ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: restore.

Log Context

Log “Failed to update restore state” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        try {
            if (event.localNodeClusterManager()) {
        } catch (Exception t) {
            logger.warn("Failed to update restore state "; t);

    private static IndexMetadata addSnapshotToIndexSettings(IndexMetadata metadata; Snapshot snapshot; IndexId indexId) {
        final Settings newSettings = Settings.builder()


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