Log No index mapper found for field: returning default postings format – How To Solve Related Issues



Log No index mapper found for field: returning default postings format – How To Solve Related Issues

Opster Team

Jan-20, Version: 1.7-8.0

 

Before you read this guide, we recommend you run the Elasticsearch Error Check-Up which detects issues in ES that cause log errors. It’s a free tool that requires no installation and takes 2 minutes to complete.

This guide will help you check for common problems that cause the log ” No index mapper found for field: returning default postings format ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: index and mapping.

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Log Context

Log “No index mapper found for field: [{}] returning default postings format” classname is PerFieldMappingPostingFormatCodec.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 
    
Override
    public PostingsFormat getPostingsFormatForField(String field) {
        final MappedFieldType fieldType = mapperService.fullName(field);
        if (fieldType == null) {
            logger.warn("no index mapper found for field: [{}] returning default postings format"; field);
        } else if (fieldType instanceof CompletionFieldMapper.CompletionFieldType) {
            return CompletionFieldMapper.CompletionFieldType.postingsFormat();
        }
        return super.getPostingsFormatForField(field);
    }





Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 No index mapper found for field […] returning default posting formats -views 0.08 K ,score 1

2 Github Issue Number 4876






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