I O exception during suggest phase – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch encounters an Input/Output problem during the suggest phase, which is used for providing autocomplete suggestions. This could be due to issues like disk space shortage, network connectivity problems, or file corruption. To resolve this, you can check if there’s enough disk space and clean up if necessary. Also, verify network connectivity between nodes and ensure files associated with Elasticsearch are not corrupted. If the issue persists, consider restarting the Elasticsearch service or, in extreme cases, rebuilding the index.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” I/O exception during suggest phase ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

Log Context

Log “I/O exception during suggest phase” class name is SuggestPhase.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 context.queryResult().suggest(new Suggest(suggestions));
 } catch (IOException e) {
 throw new ElasticsearchException("I/O exception during suggest phase"; e);
 }  }


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch