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container_fs_inodes_free shows constant zero for docker containers with storage-driver overlay2 #3534

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janhorstmann opened this issue May 28, 2024 · 0 comments
Open

container_fs_inodes_free shows constant zero for docker containers with storage-driver overlay2 #3534

janhorstmann opened this issue May 28, 2024 · 0 comments

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@janhorstmann
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Hi,
when monitoring container disks with cadvisor v0.49.1 on a docker host with

"storage-driver": "overlay2"

the metric container_fs_inodes_free shows 0 constantly.

From what I have gathered from the code it should count the number of files to calculate this metric, but this does not seem be the case.

Can anybody confirm that this is a supported feature or should I disable disk metrics for this setup?
janhorstmann added a commit to osism/kolla-operations that referenced this issue May 31, 2024
@janhorstmann
Remove alert rule ContainerVolumeUsage
4edb77e 
At least with storage-driver `overlay2` the metric
`container_fs_inodes_free` shows zero for all containers.

See google/cadvisor#3534

Part of osism/issues#1009

Signed-off-by: Jan Horstmann <horstmann@osism.tech>
@janhorstmann janhorstmann mentioned this issue May 31, 2024
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