Failed to update restore state – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch encounters an issue while trying 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, you can check and adjust the permissions of the Elasticsearch user, ensure the network connectivity is stable, and verify the health of the Elasticsearch cluster. If the issue persists, you may need to restart the Elasticsearch service or, in extreme cases, perform a full cluster restart.

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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 Elasticsearch concepts: restore.

Log Context

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

        } catch (Exception t) {
            assert false : t;
            logger.warn("Failed to update restore state "; t);

     * Optionally updates index settings in indexMetadata by removing settings listed in ignoreSettings and


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