[Transform] Improve force stop robustness in case of an error#51072

Merged

hendrikmuhs merged 3 commits intoelastic:masterfrom hendrikmuhs:transform-remove-dangling-tasks

Jan 17, 2020

+238-78

Commits on Jan 15, 2020

make it possible to stop dangling transforms
Hendrik Muhs
committed
test task removal after internal index deletion
Hendrik Muhs
committed

Commits on Jan 16, 2020

apply review suggestions
Hendrik Muhs
committed