Start object expected index” + indexName + ” – 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 ” start object expected index” + indexName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories and index.

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 “start object expected index[” + indexName + “]”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final List snapshotIds = new ArrayList<>();
 final List gens = new ArrayList<>(); 
 IndexId indexId = null;
 if (parser.nextToken() != XContentParser.Token.START_OBJECT) {
 throw new ElasticsearchParseException("start object expected index[" + indexName + "]");
 while (parser.nextToken() != XContentParser.Token.END_OBJECT) {
 final String indexMetaFieldName = parser.currentName();
 if (INDEX_ID.equals(indexMetaFieldName)) {


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