Cannot remove setting ignoredSetting on restore – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when you try to remove a setting during the restore process of an Elasticsearch snapshot. Elasticsearch doesn’t allow certain settings to be removed or changed during a restore. To resolve this issue, you can either remove the setting from the restore request or change the setting to a valid value. Alternatively, you can modify the setting after the restore process has completed.

This guide will help you check for common problems that cause the log ” cannot remove setting [” + ignoredSetting + “] on restore ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: restore.

Log Context

Log “cannot remove setting [” + ignoredSetting + “] on restore” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 Set keyFilters = new HashSet<>();
 List simpleMatchPatterns = new ArrayList<>();
 for (String ignoredSetting : ignoreSettings) {
 if (Regex.isSimpleMatchPattern(ignoredSetting) == false) {
 if (UNREMOVABLE_SETTINGS.contains(ignoredSetting)) {
 throw new SnapshotRestoreException(snapshot; "cannot remove setting [" + ignoredSetting + "] on restore");
 } else {
 } else {


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