moby/libcontainerd
Cory Snider 57d2d6ef62 Update container OOMKilled flag immediately
The OOMKilled flag on a container's state has historically behaved
rather unintuitively: it is updated on container exit to reflect whether
or not any process within the container has been OOM-killed during the
preceding run of the container. The OOMKilled flag would be set to true
when the container exits if any process within the container---including
execs---was OOM-killed at any time while the container was running,
whether or not the OOM-kill was the cause of the container exiting. The
flag is "sticky," persisting through the next start of the container;
only being cleared once the container exits without any processes having
been OOM-killed that run.

Alter the behavior of the OOMKilled flag such that it signals whether
any process in the container had been OOM-killed since the most recent
start of the container. Set the flag immediately upon any process being
OOM-killed, and clear it when the container transitions to the "running"
state.

There is an ulterior motive for this change. It reduces the amount of
state the libcontainerd client needs to keep track of and clean up on
container exit. It's one less place the client could leak memory if a
container was to be deleted without going through libcontainerd.

Signed-off-by: Cory Snider <csnider@mirantis.com>
2022-08-24 14:59:07 -04:00
..
local gofmt GoDoc comments with go1.19 2022-07-08 19:56:23 +02:00
queue bump gotest.tools v3.0.1 for compatibility with Go 1.14 2020-02-11 00:06:42 +01:00
remote Update container OOMKilled flag immediately 2022-08-24 14:59:07 -04:00
supervisor cmd/dockerd: initContainerD(): clean-up some logs 2022-08-11 14:11:08 +02:00
types Update container OOMKilled flag immediately 2022-08-24 14:59:07 -04:00
libcontainerd_linux.go Configure shims from runtime config 2020-07-13 14:18:02 -07:00
libcontainerd_windows.go Remove unused useShimV2() 2020-07-15 14:28:48 +02:00