How to cancel search using the Task Management API

I would like to cancel a long running search tasks using the Task Management API, but when I try to cancel such a task, I obtain the following error message:
"node_failures" : [ {
"type" : "failed_node_exception",
"reason" : "Failed node [EEXZOO90RNGXkReo_sXfig]",
"caused_by" : {
"type" : "resource_not_found_exception",
"reason" : "task [EEXZOO90RNGXkReo_sXfig:255615824] doesn't support cancellation"
} ],
"nodes" : { }
Is there currently a way to cancel such a task?

Any help would be much appreciated.

Search does not currently support cancellation. I believe the only tasks supporting cancellation at the moment are Reindex and Delete-By-Query. We'd like to have cancellable search in the future, but because the task management framework is still very new, it may be a while before that functionality is integrated everywhere.

Edit: See below, search cancellation is possible! :slight_smile:

Thanks for your answer, we are very interested to have this feature. Therefore I believe we are going to dive into the code to see how we could implemented this functionality. Any pointers?

It seems that the Search cancellation feature is available in 5.x (starting in 5.1):

Oops, you're absolutely right! Sorry about that, it's sometimes hard to keep up with all the changes in ES, even when you work on the software :slight_smile:

I'll strike through my answer above so future readers don't get confused


This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.