Timed out waiting for completion of – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.6

Briefly, this error occurs when Elasticsearch takes longer than the set timeout period to complete a specific operation. This could be due to heavy indexing, large data queries, or insufficient resources. To resolve this issue, you can increase the timeout limit, optimize your queries for efficiency, or scale up your Elasticsearch cluster to handle more data and operations. Additionally, consider reducing the size of your data by deleting unnecessary fields or documents.

This guide will help you check for common problems that cause the log ” Timed out waiting for completion of [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “Timed out waiting for completion of [{}]” class name is TaskManager.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } catch (InterruptedException e) {
 throw new ElasticsearchException("Interrupted waiting for completion of [{}]"; e; task);
 throw new ElasticsearchTimeoutException("Timed out waiting for completion of [{}]"; task);
 }  private static class CancellableTaskHolder {
 private final CancellableTask task;
 private boolean finished = false;