ML maintenance task triggerDeleteJobsInStateDeletingWithoutDeletionTask failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.8-8.9

Briefly, this error occurs when Elasticsearch Machine Learning (ML) jobs are in a deleting state but the deletion task fails. This could be due to insufficient permissions, network issues, or system resource constraints. To resolve this, you can try the following: 1) Check and adjust user permissions to ensure the task can be executed. 2) Investigate network connectivity and stability. 3) Monitor system resources and increase capacity if necessary. 4) Restart the Elasticsearch cluster to clear any temporary issues. Always ensure to backup your data before making any major changes.

This guide will help you check for common problems that cause the log ” [ML] maintenance task: triggerDeleteJobsInStateDeletingWithoutDeletionTask failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, task, delete.

Log Context

Log “[ML] maintenance task: triggerDeleteJobsInStateDeletingWithoutDeletionTask failed” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        // Step 2: Delete expired data
        ActionListener deleteJobsListener = ActionListener.wrap(
            unused -> triggerDeleteExpiredDataTask(finalListener);
            e -> {
      "[ML] maintenance task: triggerDeleteJobsInStateDeletingWithoutDeletionTask failed"; e);
                // Note: Steps 1 and 2 are independent of each other and step 2 is executed even if step 1 failed.


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