Cannot find datafeed for task – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.17

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Briefly, this error occurs when Elasticsearch is unable to locate the datafeed associated with a specific task. This could be due to the datafeed being deleted, renamed, or moved. To resolve this issue, you can try the following: 1) Verify the existence and correct naming of the datafeed. 2) Check if the datafeed has been moved to a different index or cluster. 3) If the datafeed was deleted, you may need to recreate it. 4) Ensure that the task is correctly linked to the datafeed.

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This guide will help you check for common problems that cause the log ” cannot find datafeed for task [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task, plugin.

Log Context

Log “cannot find datafeed for task [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    // replace with the updated params
                    taskBuilder.addTask(datafeedTask.getId(); datafeedTask.getTaskName(); updatedParams; datafeedTask.getAssignment());
                } else {
                    logger.error("cannot find datafeed for task [{}]"; datafeedTask.getId());



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