How To Solve Issues Related to Log – Key ; doccount

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Updated: Jan-20

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Troubleshooting background

To troubleshoot Elasticsearch log “Key ; doccount” it’s important to understand common problems related to Elasticsearch concepts: aggregations. See detailed explanations below complete with common problems, examples and useful tips.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1 Elasticsearch count doc_count occurrences on aggs 0.31 K 1

2elasticsearch aggregations sort on buckets keys 1.57 K  2


Log Context

Log ”Key [{}]; doc_count [{}]” classname is tophits-aggregation.asciidoc
We have extracted the following from Elasticsearch source code to get an in-depth context :

 
// For each entry
for (Terms.Bucket entry : agg.getBuckets()) {
    String key = entry.getKey();                    // bucket key
    long docCount = entry.getDocCount();            // Doc count
    logger.info("key [{}]; doc_count [{}]"; key; docCount);

    // We ask for top_hits for each bucket
    TopHits topHits = entry.getAggregations().get("top");
    for (SearchHit hit : topHits.getHits().getHits()) {
        logger.info(" -> id [{}]; _source [{}]"; hit.getId(); hit.getSourceAsString());






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