[cinder-csi-plugin] Verify filesystem size after resize #1543
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Signed-off-by: Andrey Klimentyev <andrey.klimentyev@flant.com>
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Nope, that won't work. Statfs() calculates available size without filesystem-specific. There are some insights here. Working on figuring this out... |
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| @@ -540,6 +541,17 @@ func (ns *nodeServer) NodeExpandVolume(ctx context.Context, req *csi.NodeExpandV | |||
| if _, err := r.Resize(devicePath, volumePath); err != nil { | |||
| return nil, status.Errorf(codes.Internal, "Could not resize volume %q: %v", volumeID, err) | |||
| } | |||
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| newFsSize, err := filesystem.GetFilesystemSize(volumePath) | |||
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You may want to use r.NeedResize() instead:
https://github.com/kubernetes/mount-utils/blob/master/resizefs_linux.go#L105
mount-utils is added in this PR: #1440, but it's interesting it doesn't exist in this file 🤔
It can also be used for #1539 as well :)
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I thought I've sent it as a comment, not a review! :D
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Aye, but the problem is. Due to the bug that I linked, the block device won't be resized as well. I think I'll add a check for the block device size; let's see how it works out. And if I can persuade maintainers to merge this.
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@zuzzas: The following test failed, say
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This config triggers a code path on NodeVolumeExpand() that works around the aforementioned bug. This PR has no purpose. |
What this PR does / why we need it:
Here is an issue that triggered a waterfall of "successful" Expands, which led to improper filesystem size: https://bugs.launchpad.net/openstack-ansible/+bug/1902914. Rescan does not work.
This means that in some cases, we can't trust a positive response from an API, and we should check an actual filesystem size after Expanding it.
Release note: