Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).This guide will help you check for common problems that cause the log ” couldn’t lookup score ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “couldn’t lookup score”classname is AggregationScript.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
public Number get_score() {
try {
return scorer == null ? 0.0 : scorer.score();
} catch (IOException e) {
throw new ElasticsearchException("couldn't lookup score"; e);
}
}
public Object get_value() {
return value;
