Cannot determine datatype for combination – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Cannot determine datatype for combination ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

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 “Cannot determine datatype for combination [{}] [{}]”classname  is Intervals.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

return INTERVAL_HOUR_TO_SECOND;
 }
 if (leading == TimeUnit.MINUTE && trailing == TimeUnit.SECOND) {
 return INTERVAL_MINUTE_TO_SECOND;
 }
 throw new ParsingException(source; "Cannot determine datatype for combination [{}] [{}]"; leading; trailing);
 }
 } 
 // return the compatible interval between the two - it is assumed the types are intervals
 // YEAR and MONTH -> YEAR_TO_MONTH

 

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