Key ; doc-count – How to solve related issues

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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 run 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. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: aggregations.

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 “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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