Briefly, this error occurs when Elasticsearch receives an HTTP request that lacks a required field. This could be due to incorrect syntax, missing data, or a malformed request. To resolve this issue, you should first identify the missing field mentioned in the error message. Then, ensure that your HTTP request is correctly formatted and includes all necessary fields. If the problem persists, check your application’s code for any errors that might be causing the malformed request.
This guide will help you check for common problems that cause the log ” could not parse http request. missing required [{}] field ” 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. missing required [{}] field” class name is HttpRequest.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
throw new ElasticsearchParseException("could not parse http request. unexpected token [{}]"; token);
}
} if (builder.host == null) {
throw new ElasticsearchParseException("could not parse http request. missing required [{}] field";
Field.HOST.getPreferredName());
} if (builder.port < 0) {
throw new ElasticsearchParseException("could not parse http request. missing required [{}] field";
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