`from` parameter must be set to 0 when `search_after` is used. – How to solve this Elasticsearch error

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`from` parameter must be set to 0 when `search_after` is used. – 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 ” `from` parameter must be set to 0 when `search_after` is used. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

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 “`from` parameter must be set to 0 when `search_after` is used.”classname  is SearchService.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (CollectionUtils.isEmpty(source.searchAfter()) == false) {
 if (context.scrollContext() != null) {
 throw new SearchException(shardTarget; "`search_after` cannot be used in a scroll context.");
 }
 if (context.from() > 0) {
 throw new SearchException(shardTarget; "`from` parameter must be set to 0 when `search_after` is used.");
 }
 FieldDoc fieldDoc = SearchAfterBuilder.buildFieldDoc(context.sort(); source.searchAfter());
 context.searchAfter(fieldDoc);
 }

 

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