Log Key ; from ; to ; doc-count – How To Solve Related Issues

Log Key ; from ; to ; doc-count – How To Solve Related Issues

Opster Team

Feb-20, Version: 1.7-8.0


Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many log errors (free and no installation required)


This guide will help you check for common problems that cause the log “Key ; from ; to ; doc-count” 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: aggregations.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations. 

Log Context

Log “key [{}]; from [{}]; to [{}]; doc_count [{}]” classname is geodistance-aggregation.asciidoc
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

     String key = entry.getKeyAsString();    // key as String
    Number from = (Number) entry.getFrom(); // bucket from value
    Number to = (Number) entry.getTo();     // bucket to value
    long docCount = entry.getDocCount();    // Doc count

    logger.info("key [{}]; from [{}]; to [{}]; doc_count [{}]"; key; from; to; docCount);

This will basically produce:

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