| hberaud[m] | zigo: o/ I think we have a potential fix https://github.com/eventlet/eventlet/pull/1042, but for now we need further investigation to confirm that it fix or not the problem you nova bug you shared with us. | 13:50 |
|---|---|---|
| zigo | hberaud[m]: Hi! I thought you were on PTO ! :) | 13:50 |
| hberaud[m] | I came back this morning :) | 13:51 |
| zigo | Ah, cool ! :) | 13:51 |
| zigo | I can test that patch in my virtualized env. | 13:51 |
| zigo | Got Trixie + Epoxy up and running. | 13:51 |
| hberaud[m] | that would be awesome | 13:51 |
| zigo | Just give me a few minutes ! :) | 13:52 |
| hberaud[m] | please feel free to join the conversation directly on the pull request | 13:52 |
| hberaud[m] | sure | 13:52 |
| zigo | I honestly don't have the skills to help. :/ | 13:52 |
| hberaud[m] | well just sharing your observation is already helping us :) | 13:53 |
| hberaud[m] | but if you prefer I can be the proxy between this openstack discussion and the eventlet PR discussion | 13:54 |
| zigo | I can report what I see in the PR, no problem. | 13:55 |
| hberaud[m] | thanks, much appreciated | 13:55 |
| zigo | Nope, same issue: | 13:56 |
| zigo | AttributeError: 'SessionClient' object has no attribute 'endpoint_override' | 13:56 |
| hberaud[m] | ack thanks | 13:56 |
| zigo | Please try another magic spell ! :) | 13:57 |
| zigo | Is all the brokenness in eventlet/patcher.py ? | 13:58 |
| zigo | Since gc.disable() kind of "fix" things, would it be possible to just do that, and then re-enable the gc when the thread is finished? | 14:00 |
| zigo | I know that would be a *very* ugly hack, but at this point ... :P | 14:00 |
| zigo | hberaud[m]: ^ | 14:00 |
| zigo | Where's the piece of code that re-implement threads? | 14:01 |
| zigo | This, I guess? | 14:02 |
| zigo | ./eventlet/green/thread.py | 14:02 |
| zigo | ./eventlet/green/threading.py | 14:02 |
| zigo | ./eventlet/greenthread.py | 14:02 |
| hberaud[m] | Well, I'm not enoughly expert of the eventlet patcher to answer that question now, my co-maintainer Itamar is far more skilled with that RLock/Patch module than me, I can try to initiate a discussion with him and see what would be feasible or not | 14:03 |
| hberaud[m] | ./eventlet/green/thread.py | 14:03 |
| hberaud[m] | is for https://docs.python.org/fr/3/library/_thread.html#module-_thread | 14:04 |
| hberaud[m] | threading is for https://docs.python.org/fr/3/library/threading.html | 14:04 |
| zigo | Cool, c'est en Français ! :) | 14:04 |
| hberaud[m] | ooops lol | 14:05 |
| zigo | Nan, ça me va ! :) | 14:05 |
| hberaud[m] | translation included! | 14:05 |
| hberaud[m] | and greenthreads for patching greenlet things | 14:06 |
| zigo | Ok, so we have __spawn_green() that does the thread start, is there somewhere executed when the thread stops?!? | 14:07 |
| zigo | (I guess you see where I'm going... :P) | 14:07 |
| hberaud[m] | :) | 14:07 |
| hberaud[m] | good question let me check the code | 14:07 |
| hberaud[m] | At the thread level we have an "exit" method https://github.com/eventlet/eventlet/blob/master/eventlet/green/thread.py#L144 , but apparently nothing about "cancel" or "stop" or around an event triggered at stopping. At the threading level we have a greenthread join https://github.com/eventlet/eventlet/blob/master/eventlet/green/threading.py#L42. This green thread class expose thread-like attributes and methods | 14:15 |
| hberaud[m] | concerning eventlet/greenthread this module is a glue between greenlet and the Eventlet representation of the python threading (threading and _tread from the stdlib) | 14:20 |
| hberaud[m] | this module implement additional methods like kill and cancel | 14:23 |
| hberaud[m] | but we should seen this module more with a greenlet coroutine nature than with a native thread nature | 14:24 |
| zigo | ok | 14:24 |
| hberaud[m] | IMO if we have to implement some changes, then they should be either at the eventlet/green/thread*.py level or at the eventlet/patcher.py level | 14:27 |
| JayF | zigo: IDK how to fix the issue; but gc.disable() would essentially lead to unbound memory growth for the process | 14:43 |
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