Truncated date math – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch encounters an incomplete or improperly formatted date math expression. Date math allows for complex time-based calculations, but it requires precise syntax. If an expression is cut off or missing elements, OpenSearch can’t interpret it, leading to a “Truncated date math” error. To resolve this issue, review your date math expressions to ensure they’re complete and correctly formatted. Check for missing operators or operands, and ensure you’re using the correct date math syntax. If you’re dynamically generating expressions, ensure the generation process isn’t cutting off expressions prematurely.

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This guide will help you check for common problems that cause the log ” truncated date math [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .

Log Context

Log “truncated date math [{}]” class name is We extracted the following from OpenSearch source code for those seeking an in-depth context :

 throw new OpenSearchParseException("operator not supported for date math [{}]"; mathString);
 }  if (i >= mathString.length()) {
 throw new OpenSearchParseException("truncated date math [{}]"; mathString);
 }  final int num;
 if (!Character.isDigit(mathString.charAt(i))) {
 num = 1;


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