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

Get an Elasticsearch Check-Up


Check if your ES issues are caused from misconfigured settings
(Free 2 min process)

ES Check Up

Elasticsearch Error Guide In Page Navigation :

Troubleshooting Background – start here to get the full picture       
Related Issues – selected resources on related issues  
Log Context – usefull for experts
About Opster – offering a diffrent approach to troubleshoot Elasticsearch

Check My Elasticsearch 


Troubleshooting background

To troubleshoot Elasticsearch log “Key ; date ; doc-count” it’s important to know common problems related to Elasticsearch concepts: aggregations. See below-detailed explanations 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 :

Elasticsearch Get only those date histograms whose bucket size is greater than given number
stackoverflow.com/questions/55866438/elasticsearch-get-only-those-date-histograms-whose-bucket-size-is-greater-than-g

Number of Views : 0.10 K  Score on Stackoverflow : 1

Date Histogram And Derivative On Do
discuss.elastic.co/t/date-histogram-and-derivative-on-doc-count/43081

 


Log Context

Log ”Key ; date ; doc-count” classname is datehistogram-aggregation.asciidoc
We have extracted the following from Elasticsearch source code to get an in-depth context :

 for (Histogram.Bucket entry : agg.getBuckets()) {
    DateTime key = (DateTime) entry.getKey();    // Key
    String keyAsString = entry.getKeyAsString(); // Key as String
    long docCount = entry.getDocCount();         // Doc count

    logger.info("key [{}]; date [{}]; doc_count [{}]"; keyAsString; key.getYear(); docCount);
}
--------------------------------------------------

This will basically produce for the first example:







About Opster

Incorporating deep knowledge and broad history of Elasticsearch issues. Opster’s solution identifies and predicts root causes of Elasticsearch problems, provides recommendations and can automatically perform various actions to manage, troubleshoot and prevent issues

We are constantly updating our analysis of Elasticsearch logs, errors, and exceptions. Sharing best practices and providing troubleshooting guides.

Learn more: Glossary | Blog| Troubleshooting guides | Error Repository

Need help with any Elasticsearch issue ? Contact Opster

Did this page help you?