Failed to parse privileges check expected an object but found instead – 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 privileges check due to an unexpected data type. It’s expecting an object but is receiving a different data type instead. To resolve this issue, you should check the data you’re sending to ensure it’s in the correct format. Make sure that the privileges check is an object and not a different data type like a string or array. Also, verify that the JSON syntax is correct and there are no missing or extra brackets or commas.

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This guide will help you check for common problems that cause the log ” failed to parse privileges check [{}]. expected an object but found [{}] instead ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “failed to parse privileges check [{}]. expected an object but found [{}] instead” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 XContentParser parser = xContentType.xContent()
 .createParser(NamedXContentRegistry.EMPTY; LoggingDeprecationHandler.INSTANCE; stream)) {
 // advance to the START_OBJECT token
 XContentParser.Token token = parser.nextToken();
 if (token != XContentParser.Token.START_OBJECT) {
 throw new ElasticsearchParseException("failed to parse privileges check [{}]. expected an object but found [{}] instead";
 description; token);
 String currentFieldName = null;
 IndicesPrivileges[] indexPrivileges = null;
 String[] clusterPrivileges = null;


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