Could not parse http request attachment – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to parse an HTTP request attachment due to incorrect formatting or syntax. This could be due to a malformed JSON or a wrong query structure. To resolve this issue, you can: 1) Check the syntax of your HTTP request to ensure it’s correctly formatted. 2) Validate your JSON structure using a JSON validator. 3) Review your query structure to ensure it aligns with Elasticsearch’s query DSL. 4) Check for any unsupported characters or data types in your request.

This guide will help you check for common problems that cause the log ” Could not parse http request attachment ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, request.

Log Context

Log “Could not parse http request attachment” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (requestTemplate != null) {
 return new HttpRequestAttachment(id; requestTemplate; inline; contentType);
 }  throw new ElasticsearchParseException("Could not parse http request attachment");
 }  @Override
 public Attachment toAttachment(WatchExecutionContext context; Payload payload; HttpRequestAttachment attachment) throws IOException {
 Map model = Variables.createCtxParamsMap(context; payload);