Could not parse http request template missing required string field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is unable to parse an HTTP request template because it lacks a required string field. This could be due to a malformed or incomplete request. To resolve this issue, you should first identify the missing string field in the request template. Ensure that all required fields are included and correctly formatted. If the error persists, check the Elasticsearch logs for more detailed information about the error. It might also be helpful to validate your request template against the Elasticsearch documentation to ensure it meets all requirements.

This guide will help you check for common problems that cause the log ” could not parse http request template. missing required [{}] string field ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, request, template.

Log Context

Log “could not parse http request template. missing required [{}] string field” class name is HttpRequestTemplate.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 token; currentFieldName);
 }
 }  if (builder.host == null) {
 throw new ElasticsearchParseException("could not parse http request template. missing required [{}] string field";
 HttpRequest.Field.HOST.getPreferredName());
 }
 if (builder.port <= 0) {
 throw new ElasticsearchParseException("could not parse http request template. wrong port for [{}]";
 HttpRequest.Field.PORT.getPreferredName());

 

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