1.Firstly, "delete by query" was run. it exhausted 100 % of disk space,
then I tried POST /_forcemerge after adding more disk space but this space is also getting consumed rapidly
can I cancel the tasks which are running tasks as the below given command is not able to kill tasks . It says "not cancellable tasks"
** POST /_tasks/<task_id>/_cancel**
No task is completed and resource crunch (disk space) may again. How can I know the running task's estimated remaining time or size ??