Updated breaker settings field data – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.8

Briefly, this error occurs when there is an attempt to modify the field data circuit breaker settings in Elasticsearch. The field data circuit breaker is a mechanism to prevent out of memory errors by limiting the amount of memory a single query can use. To resolve this issue, you can either increase the limit if your system has enough memory or optimize your queries to use less memory. Additionally, consider using doc values instead of field data for memory-efficient handling of large amounts of data.

This guide will help you check for common problems that cause the log ” Updated breaker settings field data: {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: settings, breaker, indices.

Log Context

Log “Updated breaker settings field data: {}” classname is HierarchyCircuitBreakerService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            HierarchyCircuitBreakerService.this.fielddataSettings.getOverhead() : newFielddataOverhead;
        BreakerSettings newFielddataSettings = new BreakerSettings(CircuitBreaker.FIELDDATA; newFielddataLimitBytes; newFielddataOverhead;
                this.fielddataSettings.getType(); this.fielddataSettings.getDurability());
        HierarchyCircuitBreakerService.this.fielddataSettings = newFielddataSettings;
        logger.info("Updated breaker settings field data: {}"; newFielddataSettings);

    private void setAccountingBreakerLimit(ByteSizeValue newAccountingMax; Double newAccountingOverhead) {
        BreakerSettings newAccountingSettings = new BreakerSettings(CircuitBreaker.ACCOUNTING; newAccountingMax.getBytes();
            newAccountingOverhead; HierarchyCircuitBreakerService.this.accountingSettings.getType();


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