Failed to create SuggestionSearchContext – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch fails to create a context for a suggestion search, which is a feature used to provide autocomplete and did-you-mean functionality. This could be due to incorrect syntax, missing fields, or a problem with the underlying data. To resolve this issue, you can check the syntax of your search query, ensure all necessary fields are included, and verify the integrity of your data. If the problem persists, consider reindexing your data or restarting your Elasticsearch cluster.

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

Log Context

Log “failed to create SuggestionSearchContext” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (source.suggest() != null) {
 try {
 } catch (IOException e) {
 throw new SearchException(shardTarget; "failed to create SuggestionSearchContext"; e);
 if (source.rescores() != null) {
 try {
 for (RescorerBuilder rescore : source.rescores()) {


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