Failed to generate filter – 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 fails to generate a specific filter due to incorrect syntax, missing fields, or invalid values. To resolve this issue, you should first verify the syntax of your filter query. Ensure that all necessary fields are included and that the values provided are valid and in the correct format. If the error persists, consider simplifying your filter or breaking it down into smaller parts to identify the problematic section.

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 ” Failed to generate [” + filter + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: admin, alias, filter, indices.

Log Context

Log “Failed to generate [” + filter + “]” class name is IndicesAliasesRequest.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 XContentBuilder builder = XContentFactory.contentBuilder(XContentType.JSON);
 builder.map(filter);
 this.filter = Strings.toString(builder);
 return this;
 } catch (IOException e) {
 throw new ElasticsearchGenerationException("Failed to generate [" + filter + "]"; e);
 }
 }  public AliasActions filter(QueryBuilder filter) {
 if (filter == null) {

 

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?