Failed to parse as a double – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

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.

This guide will help you check for common problems that cause the log ” failed to parse as a double ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: Node.


Log Context

Log “failed to parse [{}] as a double”classname  is MemorySizeValue.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (percent < 0 || percent > 100) {
 throw new ElasticsearchParseException("percentage should be in [0-100]; got [{}]"; percentAsString);
 }
 return new ByteSizeValue((long) ((percent / 100) * JvmInfo.jvmInfo().getMem().getHeapMax().getBytes()); ByteSizeUnit.BYTES);
 } catch (NumberFormatException e) {
 throw new ElasticsearchParseException("failed to parse [{}] as a double"; e; percentAsString);
 }
 } else {
 return parseBytesSizeValue(sValue; settingName);
 }
 }

 

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