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Briefly, this error occurs when OpenSearch updates the limit and overhead for a specific operation or resource. It’s a part of OpenSearch’s dynamic settings update mechanism, which allows changing certain parameters without restarting the system. This is not necessarily an error, but an informational message. However, if you’re experiencing issues, you may need to adjust the limit or overhead values. You can do this by using the OpenSearch API to update the settings. Alternatively, if the new values are causing problems, you may need to revert to the previous settings.
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This guide will help you check for common problems that cause the log ” Updated limit {} and overhead {} for {} ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: breaker, indices.
Log Context
Log “Updated limit {} and overhead {} for {}” classname is HierarchyCircuitBreakerService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
private void updateCircuitBreakerSettings(String name; ByteSizeValue newLimit; Double newOverhead) {
CircuitBreaker childBreaker = breakers.get(name);
if (childBreaker != null) {
childBreaker.setLimitAndOverhead(newLimit.getBytes(); newOverhead);
logger.info("Updated limit {} and overhead {} for {}"; newLimit.getStringRep(); newOverhead; name);
}
}
private void validateTotalCircuitBreakerLimit(ByteSizeValue byteSizeValue) {
BreakerSettings newParentSettings = new BreakerSettings(
