Briefly, this error occurs when Elasticsearch encounters an unexpected field in the indices options. This could be due to a typo, incorrect formatting, or an unsupported field in the indices options. To resolve this issue, you should first verify the field name and its spelling. If it’s correct, check the formatting of your indices options. Ensure that it follows the correct JSON format. If the error persists, check the Elasticsearch documentation to ensure the field is supported in your version of Elasticsearch.
This guide will help you check for common problems that cause the log ” could not read indices options. unexpected object field [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices.
Log Context
Log “could not read indices options. unexpected object field [” class name is IndicesOptions.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
} else {
throw new ElasticsearchParseException("could not read indices options. unexpected index option [" +
currentFieldName + "]");
}
} else {
throw new ElasticsearchParseException("could not read indices options. unexpected object field [" +
currentFieldName + "]");
}
} if (wildcardStates == null) {
