Malformed regular expression file; should continue with ‘array’ after ‘object’ – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” malformed regular expression file; should continue with ‘array’ after ‘object’ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: Node.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “malformed regular expression file; should continue with ‘array’ after ‘object'”classname  is UserAgentParser.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

private List> readParserConfigurations(XContentParser yamlParser) throws IOException {
 List> patternList = new ArrayList<>(); 
 XContentParser.Token token = yamlParser.nextToken();
 if (token != XContentParser.Token.START_ARRAY) {
 throw new ElasticsearchParseException("malformed regular expression file; should continue with 'array' after 'object'");
 } 
 token = yamlParser.nextToken();
 if (token != XContentParser.Token.START_OBJECT) {
 throw new ElasticsearchParseException("malformed regular expression file; expecting 'object'");

 

Watch product tour

Watch how AutoOps finds & fixes Elasticsearch problems

Analyze Your Cluster
Skip to content