Could not parse http request template wrong port for – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when Elasticsearch is unable to parse the HTTP request template due to an incorrect port number. This could be because the port number is either not specified, or it’s incorrect. To resolve this issue, you can check the Elasticsearch configuration file and ensure the correct port number is specified. If the port number is correct, check if any other service is using the same port. If so, change the port number for either Elasticsearch or the conflicting service. Also, ensure that the port is open and accessible.

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This guide will help you check for common problems that cause the log ” could not parse http request template. wrong port for [{}] ” 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. wrong port for [{}]” class name is HttpRequestTemplate.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 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());
 }  return builder.build();
 }

 

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