Failure updating cluster state – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch encounters issues while updating the cluster state. This could be due to network connectivity issues, insufficient resources, or a problem with the master node. To resolve this, you can check the network connectivity between nodes, ensure there are enough resources (CPU, memory, disk space), and verify the health of the master node. If the master node is the issue, you may need to elect a new master node. Also, check the Elasticsearch logs for more specific error details.

This guide will help you check for common problems that cause the log ” failure updating cluster state ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories, cluster.

Log Context

Log “failure updating cluster state ” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            repositories = unmodifiableMap(builder);
        } catch (Exception ex) {
            assert false : new AssertionError(ex);
            logger.warn("failure updating cluster state "; ex);

    private static boolean canUpdateInPlace(RepositoryMetadata updatedMetadata; Repository repository) {


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