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


Log Key ; 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 that cause many errors.

This guide will help you check for common problems that cause the log ” Key ; 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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log context

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

 // For each entry
for (Histogram.Bucket entry : agg.getBuckets()) {
    Long key = (Long) entry.getKey();       // Key
    long docCount = entry.getDocCount();    // Doc count

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