Updating flush threshold ops from to – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch is trying to update the flush threshold operations value, which controls when a flush operation is automatically triggered. This could be due to a configuration change or an automatic adjustment by Elasticsearch. To resolve this issue, you can manually set the “indices.memory.index_buffer_size” in the Elasticsearch configuration file. Alternatively, ensure that your Elasticsearch cluster has sufficient resources, as this error can occur if the system is under heavy load or if there is insufficient memory available.

This guide will help you check for common problems that cause the log ” updating flush_threshold_ops from [{}] to [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “updating flush_threshold_ops from [{}] to [{}]” classname is TranslogService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

     class ApplySettings implements IndexSettingsService.Listener {
        
Override
        public void onRefreshSettings(Settings settings) {
            int flushThresholdOperations = settings.getAsInt(INDEX_TRANSLOG_FLUSH_THRESHOLD_OPS; TranslogService.this.flushThresholdOperations);
            if (flushThresholdOperations != TranslogService.this.flushThresholdOperations) {
                logger.info("updating flush_threshold_ops from [{}] to [{}]"; TranslogService.this.flushThresholdOperations; flushThresholdOperations);
                TranslogService.this.flushThresholdOperations = flushThresholdOperations;
            }
            ByteSizeValue flushThresholdSize = settings.getAsBytesSize(INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE; TranslogService.this.flushThresholdSize);
            if (!flushThresholdSize.equals(TranslogService.this.flushThresholdSize)) {
                logger.info("updating flush_threshold_size from [{}] to [{}]"; TranslogService.this.flushThresholdSize; flushThresholdSize);



 

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