Task doesn’t support this operation – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” task doesn’t support this operation ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “task [{}] doesn’t support this operation”classname  is TransportTasksAction.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

Task task = taskManager.getTask(request.getTaskId().getId());
 if (task != null) {
 if (request.match(task)) {
 operation.accept((OperationTask) task);
 } else {
 throw new ResourceNotFoundException("task [{}] doesn't support this operation"; request.getTaskId());
 } else {
 throw new ResourceNotFoundException("task [{}] is missing"; request.getTaskId());
 } else {


Watch product tour

Watch how AutoOps finds & fixes Elasticsearch problems

Analyze Your Cluster
Skip to content