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I see #9941 has both 2.3 and 2.4 tags. Devs, please make this a priority for 2.3 before it reaches EOL. |
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Hi All,
This problem relates to #9941 which is set to be resolved in 2.4.x but just wanted to highlight an issue it caused for us.
We are running version 2.3.240 and I recently noticed on reboot the docker service takes around 10-20 mins to start. Looking at iotop " /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock" was reading the disk for a prolonged period of time and seemed to be the cause.
On investigation we identified the their was over 100 thousand volumes in /var/lib/docker/volumes. (docker volume ls | wc -l)
Once docker started we ran "docker volume prune" and this deleted all volumes and left 13 which is similar to the amount of containers (14) on a forward node.
After this completed I performed a reboot and docker started instantly and no longer had the 20 min delay on boot for SO containers to come up.
Just thought I would share this incase anyone is seeing similar behavior prior to the fix in 2.4.X, currently I am just going to create a cron job to clear any unused volumes.
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