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d88c834ea4
Ceph AIO installation with single/multiple node is not friendly for
loopback mount, especially always get deadlock issue during graceful
system reboot.
We already have `rbdmap.service` with graceful system reboot friendly as
below:
[Unit]
After=network-online.target
Before=remote-fs-pre.target
Wants=network-online.target remote-fs-pre.target
[Service]
ExecStart=/usr/bin/rbdmap map
ExecReload=/usr/bin/rbdmap map
ExecStop=/usr/bin/rbdmap unmap-all
This PR introduce:
- `ceph-mon.target`: Ensure startup after `network-online.target` and
before `remote-fs-pre.target`
- `ceph-*.target`: Ensure startup after `ceph-mon.target` and before
`remote-fs-pre.target`
- `rbdmap.service`: Once all `_netdev` get unmount by
`remote-fs.target`, ensure unmap all RBD BEFORE any Ceph components
under `ceph.target` get stopped during shutdown
The logic is concept proof by
<https://github.com/alvistack/ansible-role-ceph_common/tree/develop>;
also works as expected with Ceph + Kubernetes deployment by
<https://github.com/alvistack/ansible-collection-kubernetes/tree/develop>.
No more deadlock happened during graceful system reboot, both AIO
single/multiple no de with loopback mount.
Also see:
- <https://github.com/ceph/ceph/pull/36776>
- <https://github.com/etcd-io/etcd/pull/12259>
- <https://github.com/cri-o/cri-o/pull/4128>
- <https://github.com/kubernetes/release/pull/1504>
Fixes: https://tracker.ceph.com/issues/47528
Signed-off-by: Wong Hoi Sing Edison <hswong3i@gmail.com>
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|---|---|---|
| .. | ||
| 50-ceph.preset | ||
| ceph-crash.service.in | ||
| ceph-fuse.target | ||
| ceph-fuse@.service.in | ||
| ceph-immutable-object-cache.target | ||
| ceph-immutable-object-cache@.service.in | ||
| ceph-mds.target | ||
| ceph-mds@.service.in | ||
| ceph-mgr.target | ||
| ceph-mgr@.service.in | ||
| ceph-mon.target | ||
| ceph-mon@.service.in | ||
| ceph-osd.target | ||
| ceph-osd@.service.in | ||
| ceph-radosgw.target | ||
| ceph-radosgw@.service.in | ||
| ceph-rbd-mirror.target | ||
| ceph-rbd-mirror@.service.in | ||
| ceph-volume@.service | ||
| ceph.target | ||
| ceph.tmpfiles.d | ||
| CMakeLists.txt | ||
| rbdmap.service.in | ||