Ignoring unknown setting with value archiving – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch encounters a setting in its configuration that it doesn’t recognize, in this case, “archiving”. This could be due to a typo, deprecated setting, or a setting that doesn’t exist. To resolve this issue, you can check the Elasticsearch documentation to verify the correct settings. If the setting is deprecated, find the updated equivalent. If it’s a typo, correct it. If the setting doesn’t exist, remove it from the configuration. After making changes, restart Elasticsearch to apply them.

This guide will help you check for common problems that cause the log ” ignoring unknown {} setting: [{}] with value [{}]; archiving ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “ignoring unknown {} setting: [{}] with value [{}]; archiving” classname is ClusterStateUpdaters.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        return ClusterState.builder(clusterState).metadata(metadataBuilder).build();

    private static void logUnknownSetting(final String settingType; final Map.Entry e) {
        logger.warn("ignoring unknown {} setting: [{}] with value [{}]; archiving"; settingType; e.getKey(); e.getValue());

    private static void logInvalidSetting(final String settingType; final Map.Entry e; final IllegalArgumentException ex) {
            () -> format("ignoring invalid %s setting: [%s] with value [%s]; archiving"; settingType; e.getKey(); e.getValue());


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