Opster Team
Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).This guide will help you check for common problems that cause the log ” failed to parse setting with value ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context
Log “failed to parse setting [{}] with value [{}]”classname is ByteSizeValue.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private static ByteSizeValue parseBytes(String lowerSValue; String settingName; String initialInput) { String s = lowerSValue.substring(0; lowerSValue.length() - 1).trim(); try { return new ByteSizeValue(Long.parseLong(s); ByteSizeUnit.BYTES); } catch (NumberFormatException e) { throw new ElasticsearchParseException("failed to parse setting [{}] with value [{}]"; e; settingName; initialInput); } catch (IllegalArgumentException e) { throw new ElasticsearchParseException( "failed to parse setting [{}] with value [{}] as a size in bytes"; e; settingName;
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Jose Rafaelly
Head of System Engineering at Everymundo