Unknown 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 ” unknown object ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: blobstore 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 “unknown object [{}]”classname  is BlobStoreIndexShardSnapshots.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

FileInfo fileInfo = FileInfo.fromXContent(parser);
 files.put(fileInfo.name(); fileInfo);
 }
 } else if (token == XContentParser.Token.START_OBJECT) {
 if (ParseFields.SNAPSHOTS.match(currentFieldName; parser.getDeprecationHandler()) == false) {
 throw new ElasticsearchParseException("unknown object [{}]"; currentFieldName);
 }
 while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
 if (token != XContentParser.Token.FIELD_NAME) {
 throw new ElasticsearchParseException("unknown object [{}]"; currentFieldName);
 }

 

Watch product tour

Watch how AutoOps finds & fixes Elasticsearch problems

Analyze Your Cluster
Skip to content