SuccessfulKoala55 Hi Jake
We didn’t change anything related to gunicorn. Is there any specific thing I can check for?
Also I noticied that it’s not running the gunicorn as a command but loads it in the python code, I don’t think it’s possible to change the threading with env that way.

FiercePenguin76 I have a theory that this is cause by a thread-safety issue - the apiserver code-base is not designed to run in multiple threads right now and scale is handles by processes. Enabling threads in gunicorn may in theory cause this exact behavior

SuccessfulKoala55 any ideas or should we restart?

need to check with infra engineers

we’re running it with the older helm chart if that matters. anyways I can’t see anything related to Gunicorn in chart or configs.

This is indeed a vulnerability and we'll fix that as soon as possible

I think their ID will provide a clue

That's strange... Can you perhaps share the env vars passed to the apiserver deployment?

I expect it to be released in the next few days

(this smells like a threading issue)

You can simply move them from the task_trash collection to the task collection 🙂

task_trash_trash is probably irrelevant, as the latest entry there is from Dec 2021

we certainly modified some deployment conf, but lets wait for answers tomorrow

Although you need to make sure you won't move experiments that actually belong in the trash 🙂

OK, we're working on a fix, stay tuned for either v1.5.0 or v1.5.1 🙂

- name: CLEARML__APISERVER__PRE_POPULATE__ENABLED value: "false" - name: CLEARML__APISERVER__PRE_POPULATE__ZIP_FILES value: /opt/clearml/db-pre-populate - name: CLEARML_SERVER_DEPLOYMENT_TYPE value: helm-cloud

The rest are clearly credentials…

I’m rather sure that after restart everything will be back to normal. Do you want me to invoke smth via SDK or REST while the server is still in this state?

The server's code only has a reference to the trash collection when deleting tasks, nowhere else 😮

nothing I can think of

and my problem occurred right after I tried to delete ~1.5K tasks from a single subproject

So apparently it's possible threading is turned on by default (at least for specific Flask versions), so that's probably it

DisgustedDove53 ?

but if you can check with me tomorrow before restarting that would be cool - I might think of something...

I'm not pretty sure multi-threading is the reason for this issue, and that restarting will solve it (but you will still need to move your new tasks from the trash collection to the normal collection).
However, I would like to understand the deployment changes you made since if you do not fix them, this might happen again...

we’ll see, thanks for your help!

OK, that's a hint... I'll try to look at the code with that in mind

I assume it's only triggered in mass deletes for now, so your options either to wait for a patch server version (a new version is about to be released, so we'll either make it to this version or push a patch version immediately after), or change your deployment to use gunicorn (which is a change of behavior, I know)

I think we can live without mass deleting for a while

restart of clearml-server helped, as expected. Now we see all experiments (except for those that were written into task__trash during the “dark times”)

FiercePenguin76 one question - did you change by any chance anything related to the way gunicorn is spawning processes / threads when launching the apiserver pods?