Rescore Phase Failed – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

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This guide will help you check for common problems that cause the log ” Rescore Phase Failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

Log Context

Log “Rescore Phase Failed”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

assert context.sort() == null && topDocsSortedByScore(topDocs) : "topdocs should be sorted after rescore";
 .topDocs(new TopDocsAndMaxScore(topDocs; topDocs.scoreDocs[0].score); context.queryResult().sortValueFormats());
 } catch (IOException e) {
 throw new ElasticsearchException("Rescore Phase Failed"; e);
 * Returns true if the provided docs are sorted by score.


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