Trying to create too many buckets Must be less than or equal to – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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 the number of buckets created during an Elasticsearch aggregation exceeds the limit set by the `search.max_buckets` setting. This is a safeguard to prevent memory issues. To resolve this, you can either increase the `search.max_buckets` limit in the Elasticsearch settings or optimize your queries to create fewer buckets. However, be cautious when increasing the limit as it may lead to out-of-memory errors. Alternatively, consider using the `composite` aggregation to paginate your aggregation results.

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 ” Trying to create too many buckets. Must be less than or equal to: [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: aggregations, search.

Log Context

Log “Trying to create too many buckets. Must be less than or equal to: [” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 public void accept(int value) {
 if (value != 0) {
 count += value;
 if (count > limit) {
 throw new TooManyBucketsException("Trying to create too many buckets. Must be less than or equal to: [" + limit
 + "] but was [" + count + "]. This limit can be set by changing the [" +
 MAX_BUCKET_SETTING.getKey() + "] cluster level setting."; limit);
 // check parent circuit breaker every 1024 calls


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