nomad

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Tim Gross b1657dd1fa CSI: track node claim before staging to prevent interleaved unstage (#20550 )

The CSI hook for each allocation that claims a volume runs concurrently. If a
call to `MountVolume` happens at the same time as a call to `UnmountVolume` for
the same volume, it's possible for the second alloc to detect the volume has
already been staged, then for the original alloc to unpublish and unstage it,
only for the second alloc to then attempt to publish a volume that's been
unstaged.

The usage tracker on the volume manager was intended to prevent this behavior
but the call to claim the volume was made only after staging and publishing was
complete. Move the call to claim the volume for the usage tracker to the top of
the `MountVolume` workflow to prevent it from being unstaged until all consuming
allocations have called `UnmountVolume`.

Fixes: https://github.com/hashicorp/nomad/issues/20424

2024-05-16 09:45:07 -04:00

doc.go

Update copyright file headers to BUSL-1.1

2023-08-10 17:27:15 -05:00

fingerprint_test.go

Update copyright file headers to BUSL-1.1

2023-08-10 17:27:15 -05:00

fingerprint.go

deps: purge use of old x/exp packages (#20373 )

2024-04-12 08:29:00 -05:00

instance_test.go

Update copyright file headers to BUSL-1.1