# Why a cancelled task is still on the list? **URL:** \ **Category:** Elasticsearch\ **Created:** [June 20, 2023, 2:24am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413 "2023-06-20T02:24:53Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![HyebinHong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyebinhong/32/122465_2.png) [@HyebinHong](https://discuss.elastic.co/u/HyebinHong)\ **Post date:** [June 20, 2023, 2:24am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/1 "2023-06-20T02:24:53Z")
Hello, elastic! While running multiple msearch API through Java clients, I found one of the tasks took abnormally long. So I executed `Task Cancel API`, but it doesn't seem cleanup properly. When I check the task via `Task API`, it shows `cancelled: true`, `cancellable: true`, `completed: false` and running time is still increasing. I know it doesn't work right away, however, it has been almost a day. Now, I need to figure it out what should I do in this situation. My question is: 1. Why cancelled task (cancelled: true) is still on the list? Do I need to keep waiting? 2. What could be the solution for this situation? delete the task forcibly? reboot server? force merge? etc 3. Does `DELETE .tasks/task/_doc/` delete a specific task? and is there no side effects? ([How to delete a task in Elasticsearch v7.14 - #7 by stephenb](https://discuss.elastic.co/t/how-to-delete-a-task-in-elasticsearch-v7-14/283321/7)) 4. Is there anything more I can check? Thank you in advance! ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [June 20, 2023, 4:29am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/2 "2023-06-20T04:29:46Z")
Hello, What is your Elasticsearch version? You didn't mention it. ---
**Author:** ![HyebinHong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyebinhong/32/122465_2.png) [@HyebinHong](https://discuss.elastic.co/u/HyebinHong)\ **Post date:** [June 20, 2023, 4:34am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/3 "2023-06-20T04:34:40Z")
sorry for that. It is 7.10! ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [June 20, 2023, 4:42am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/4 "2023-06-20T04:42:31Z")
7.10 is pretty old and no more supported. I don't think that there is much that you can do, I would suggest that you try to restart the node where the task is running to see if this solve this issue. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [June 20, 2023, 6:13am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/5 "2023-06-20T06:13:59Z")
You should also upgrade. ---
**Author:** ![HyebinHong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyebinhong/32/122465_2.png) [@HyebinHong](https://discuss.elastic.co/u/HyebinHong)\ **Post date:** [June 20, 2023, 6:34am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/6 "2023-06-20T06:34:34Z")
Is there any solution if I upgrade to 8.8 and face the same problem? ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [June 20, 2023, 7:22am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/7 "2023-06-20T07:22:48Z")
I think this is a bug. Possibly it's been fixed already in the couple of years since 7.10 was released, but if you can reproduce it in a supported version then I would like to investigate further. ---
**Author:** ![HyebinHong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyebinhong/32/122465_2.png) [@HyebinHong](https://discuss.elastic.co/u/HyebinHong)\ **Post date:** [June 21, 2023, 8:15am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/9 "2023-06-21T08:15:45Z")
Unfortunately, it is barely possible to upgrade the current version in my situation. Anyway.. After rebooting the nodes, the deadlock task on the list has been removed for now. I will let you know, when I face the same problem again. Thanks for helping! ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 19, 2023, 8:15am UTC](https://discuss.elastic.co/t/why-a-cancelled-task-is-still-on-the-list/336413/10 "2023-07-19T08:15:50Z")
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