Carlos Alexandro Becker <caarl...@gmail.com> added the comment:
Just did more tests here:
**on my machine**:
$ docker run --name test -m 1GB fedora:33 python3 -c 'import resource; m =
int(open("/sys/fs/cgroup/memory/memory.limit_in_bytes").read());
resource.setrlimit(resource.RLIMIT_AS, (m, m));
print(resource.getrlimit(resource.RLIMIT_AS)); x = bytearray(4 * 1024 * 1024 *
1000)'; docker inspect test | grep OOMKilled; docker rm test
Traceback (most recent call last):
File "<string>", line 1, in <module>
MemoryError
(1073741824, 1073741824)
"OOMKilled": false,
test
$ docker run --name test -m 1GB fedora:33 python3 -c 'x = bytearray(4 * 1024 *
1024 * 1000)'; docker inspect test | grep OOMKilled; docker rm test
"OOMKilled": true,
test
**on a k8s cluster**:
$ kubectl run -i -t debug --rm --image=fedora:33 --restart=Never
--limits='memory=1Gi'
If you don't see a command prompt, try pressing enter.
[root@debug /]# python3
Python 3.9.0 (default, Oct 6 2020, 00:00:00)
[GCC 10.2.1 20200826 (Red Hat 10.2.1-3)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> x = bytearray(4 * 1024 * 1024 * 1000)
Killed
[root@debug /]# python3
Python 3.9.0 (default, Oct 6 2020, 00:00:00)
[GCC 10.2.1 20200826 (Red Hat 10.2.1-3)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import resource
>>> m = int(open("/sys/fs/cgroup/memory/memory.limit_in_bytes").read())
>>> resource.setrlimit(resource.RLIMIT_AS, (m, m))
>>> print(resource.getrlimit(resource.RLIMIT_AS))
(1073741824, 1073741824)
>>> x = bytearray(4 * 1024 * 1024 * 1000)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
MemoryError
>>>
----------
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<https://bugs.python.org/issue42411>
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