Invalid Search Application – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.9-8.9

Briefly, this error occurs when Elasticsearch receives a search request that doesn’t comply with its expected format or parameters. This could be due to incorrect syntax, unsupported fields, or invalid query parameters. To resolve this issue, you should first verify the syntax of your search query. Ensure that all fields and parameters used are supported and correctly spelled. Also, check if the data types of your query parameters match those expected by Elasticsearch. If the error persists, consider simplifying your query or breaking it down into smaller parts to isolate the problem.

This guide will help you check for common problems that cause the log ” Invalid Search Application: ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, search.

Log Context

Log “Invalid Search Application:” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new ElasticsearchParseException("[" + SearchApplication.BINARY_CONTENT_FIELD.getPreferredName() + "] field is missing");
 } catch (IOException e) {
 throw new ElasticsearchParseException("Failed to parse: " + source.utf8ToString(); e);
 } catch (ValidationException e) {
 throw new ElasticsearchParseException("Invalid Search Application: " + source.utf8ToString(); e);
 }  static SearchApplication parseSearchApplicationBinaryWithVersion(StreamInput in) throws IOException {
 TransportVersion version = TransportVersion.readVersion(in);


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