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

Opster Team

Aug-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch is unable to locate a specific job for a task. This could be due to the job being deleted, or the task ID being incorrect. To resolve this issue, you can verify the job ID and ensure it exists in the system. If the job was deleted, you may need to recreate it. Also, ensure that the task ID you’re using is correct. If the problem persists, consider checking your Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” cannot find job 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 job 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(jobTask.getId(); jobTask.getTaskName(); updatedParams; jobTask.getAssignment());
                } else {
                    logger.error("cannot find job for task [{}]"; jobTask.getId());

        for (PersistentTasksCustomMetadata.PersistentTask> datafeedTask : unallocatedDatafeedsTasks) {


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