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Improve system behavior on low memory situation (#3781)

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* Improve system behavior on low memory situation

Adjust OOM killer score to prevent crucial services from getting
selected.

* Adjust OOM score of DNS plug-in as well
This commit is contained in:
Stefan Agner 2022-08-23 16:02:51 +02:00 committed by GitHub
parent b4e1e3e853
commit 9c7de4a6c3
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4 changed files with 4 additions and 0 deletions
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1
supervisor/docker/addon.py
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@ -489,6 +489,7 @@ class DockerAddon(DockerInterface):
environment=self.environment, environment=self.environment,
volumes=self.volumes, volumes=self.volumes,
tmpfs=self.tmpfs, tmpfs=self.tmpfs,
oom_score_adj=200,
) )
except DockerNotFound: except DockerNotFound:
self.sys_resolution.create_issue( self.sys_resolution.create_issue(

1
supervisor/docker/dns.py
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@ -50,6 +50,7 @@ class DockerDNS(DockerInterface, CoreSysAttributes):
str(self.sys_config.path_extern_dns): {"bind": "/config", "mode": "rw"}, str(self.sys_config.path_extern_dns): {"bind": "/config", "mode": "rw"},
DBUS_PATH: DBUS_VOLUME, DBUS_PATH: DBUS_VOLUME,
}, },
oom_score_adj=-300,
) )
self._meta = docker_container.attrs self._meta = docker_container.attrs

1
supervisor/docker/homeassistant.py
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@ -149,6 +149,7 @@ class DockerHomeAssistant(DockerInterface):
ENV_TOKEN_OLD: self.sys_homeassistant.supervisor_token, ENV_TOKEN_OLD: self.sys_homeassistant.supervisor_token,
}, },
tmpfs={"/tmp": ""}, tmpfs={"/tmp": ""},
oom_score_adj=-300,
) )
self._meta = docker_container.attrs self._meta = docker_container.attrs

1
supervisor/docker/observer.py
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@ -55,6 +55,7 @@ class DockerObserver(DockerInterface, CoreSysAttributes):
}, },
volumes={"/run/docker.sock": {"bind": "/run/docker.sock", "mode": "ro"}}, volumes={"/run/docker.sock": {"bind": "/run/docker.sock", "mode": "ro"}},
ports={"80/tcp": 4357}, ports={"80/tcp": 4357},
oom_score_adj=-300,
) )
self._meta = docker_container.attrs self._meta = docker_container.attrs