Shard processed docs created rollup buckets – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is processing documents and creating rollup buckets, but encounters an issue. This could be due to a variety of reasons such as insufficient memory, incorrect configuration, or a bug in the software. To resolve this issue, you could try increasing the memory allocation for Elasticsearch, checking the configuration settings for any errors, or updating Elasticsearch to the latest version to fix any potential bugs. Additionally, ensure that your rollup jobs are correctly configured and not causing an overload on the system.

This guide will help you check for common problems that cause the log ” Shard {} processed [{}] docs; created [{}] rollup buckets ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, shard.

Log Context

Log “Shard {} processed [{}] docs; created [{}] rollup buckets” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


            // check cancel after the flush all data

  "Shard {} processed [{}] docs; created [{}] rollup buckets"; indexShard.shardId(); docsProcessed; bucketsCreated);

        public ScoreMode scoreMode() {
            return ScoreMode.COMPLETE_NO_SCORES;


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