Hello everyone,
I'm trying to add an OSD node to my current cluster. I created an lvm volume for this node to use for OSD.
My current Ceph version is 14.2.6 and it runs on an RHEL 7 OS.
However, I got error when trying to activate the node. I'm confused with the output. I tried to see what really happened, but I don't know how to proceed to pinpoint the issues.
I appreciate so much for any help to clear the confusion.
* Why did the "mon getmap" command send the result to /dev/stderr? I saw the monmap file having value and it looked like it got the monmap, is there any way to check if the monmap having problem?
* What caused "_read_fsid unparsable uuid"?
Sincerely,
Hai
[xxx@xxxxxxx@xxx430 ~]$ sudo ceph-volume --cluster aap-storage lvm create --data /dev/kubernetes/ceph-osd
Running command: /bin/ceph-authtool --gen-print-key
Running command: /bin/ceph --cluster aap-storage --name client.bootstrap-osd --keyring /var/lib/ceph/bootstrap-osd/aap-storage.keyring -i - osd new c84f74b3-9a3e-4cd9-a4ce-4c1819a56f90
Running command: /bin/ceph-authtool --gen-print-key
Running command: /bin/mount -t tmpfs tmpfs /var/lib/ceph/osd/aap-storage-5
Running command: /sbin/restorecon /var/lib/ceph/osd/aap-storage-5
Running command: /bin/chown -h ceph:ceph /dev/kubernetes/ceph-osd
Running command: /bin/chown -R ceph:ceph /dev/dm-9
Running command: /bin/ln -s /dev/kubernetes/ceph-osd /var/lib/ceph/osd/aap-storage-5/block
Running command: /bin/ceph --cluster aap-storage --name client.bootstrap-osd --keyring /var/lib/ceph/bootstrap-osd/aap-storage.keyring mon getmap -o /var/lib/ceph/osd/aap-storage-5/activate.monmap
stderr: got monmap epoch 8
Running command: /bin/ceph-authtool /var/lib/ceph/osd/aap-storage-5/keyring --create-keyring --name osd.5 --add-key AQB2RAhgnkcLIBAAdcdR5N4YKzSJmfoA6G6XvA==
stdout: creating /var/lib/ceph/osd/aap-storage-5/keyring
added entity osd.5 auth(key=AQB2RAhgnkcLIBAAdcdR5N4YKzSJmfoA6G6XvA==)
Running command: /bin/chown -R ceph:ceph /var/lib/ceph/osd/aap-storage-5/keyring
Running command: /bin/chown -R ceph:ceph /var/lib/ceph/osd/aap-storage-5/
Running command: /bin/ceph-osd --cluster aap-storage --osd-objectstore bluestore --mkfs -i 5 --monmap /var/lib/ceph/osd/aap-storage-5/activate.monmap --keyfile - --osd-data /var/lib/ceph/osd/aap-storage-5/ --osd-uuid c84f74b3-9a3e-4cd9-a4ce-4c1819a56f90 --setuser ceph --setgroup ceph
stderr: 2021-01-20 15:55:52.319 7f0970d3ba80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5/) _read_fsid unparsable uuid
--> ceph-volume lvm prepare successful for: kubernetes/ceph-osd
Running command: /bin/chown -R ceph:ceph /var/lib/ceph/osd/aap-storage-5
Running command: /bin/ceph-bluestore-tool --cluster=aap-storage prime-osd-dir --dev /dev/kubernetes/ceph-osd --path /var/lib/ceph/osd/aap-storage-5 --no-mon-config
Running command: /bin/ln -snf /dev/kubernetes/ceph-osd /var/lib/ceph/osd/aap-storage-5/block
Running command: /bin/chown -h ceph:ceph /var/lib/ceph/osd/aap-storage-5/block
Running command: /bin/chown -R ceph:ceph /dev/dm-9
Running command: /bin/chown -R ceph:ceph /var/lib/ceph/osd/aap-storage-5
Running command: /bin/systemctl enable ceph-volume@lvm-5-c84f74b3-9a3e-4cd9-a4ce-4c1819a56f90
stderr: Created symlink from /etc/systemd/system/multi-user.target.wants/ceph-volume@lvm-5-c84f74b3-9a3e-4cd9-a4ce-4c1819a56f90.service to /usr/lib/systemd/system/ceph-volume@.service.
Running command: /bin/systemctl enable --runtime ceph-osd@5
stderr: Created symlink from /run/systemd/system/ceph-osd.target.wants/ceph-osd@5.service to /usr/lib/systemd/system/ceph-osd@.service.
Running command: /bin/systemctl start ceph-osd@5
stderr: Job for ceph-osd@5.service failed because the control process exited with error code. See "systemctl status ceph-osd@5.service" and "journalctl -xe" for details.
--> Was unable to complete a new OSD, will rollback changes
Running command: /bin/ceph --cluster aap-storage --name client.bootstrap-osd --keyring /var/lib/ceph/bootstrap-osd/aap-storage.keyring osd purge-new osd.5 --yes-i-really-mean-it
stderr: purged osd.5
--> RuntimeError: command returned non-zero exit status: 1
So I break the procedure into steps, and proceed them one by one. I saw the problem happen with the bluestore.
[xxx@xxxxxxx@xxx430 ~]$ sudo ceph-osd -c /etc/ceph/${CLUSTER_NAME}.conf -k /etc/ceph/${CLUSTER_NAME}.client.admin.keyring -i $ID --mkfs \
> --monmap /var/lib/ceph/osd/${CLUSTER_NAME}-$ID/activate.monmap --osd-uuid $UUID --no-mon-config \
> --osd-data /var/lib/ceph/osd/${CLUSTER_NAME}-$ID/ --setuser ceph --setgroup ceph
2021-01-21 16:59:14.907 7f724e882a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5//block) _read_bdev_label failed to open /var/lib/ceph/osd/aap-storage-5//block: (13) Permission denied
2021-01-21 16:59:14.908 7f724e882a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5//block) _read_bdev_label failed to open /var/lib/ceph/osd/aap-storage-5//block: (13) Permission denied
2021-01-21 16:59:14.908 7f724e882a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5/) _read_fsid unparsable uuid
2021-01-21 16:59:14.908 7f724e882a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5/) _setup_block_symlink_or_file failed to open block file: (13) Permission denied
2021-01-21 16:59:14.908 7f724e882a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5/) mkfs failed, (13) Permission denied
2021-01-21 16:59:14.908 7f724e882a80 -1 OSD::mkfs: ObjectStore::mkfs failed with error (13) Permission denied
2021-01-21 16:59:14.908 7f724e882a80 -1 ** ERROR: error creating empty object store in /var/lib/ceph/osd/aap-storage-5/: (13) Permission denied
Because of the permission problem, so I avoid using the ceph user for the ceph service, however, the problem still persisted.
[xxx@xxxxxxx@xxx430 ~]$ sudo ceph-osd -c /etc/ceph/${CLUSTER_NAME}.conf -k /etc/ceph/${CLUSTER_NAME}.client.admin.keyring -i $ID --mkfs --monmap /var/lib/ceph/osd/${CLUSTER_NAME}-$ID/activate.monmap --osd-uuid $UUID --no-mon-config --osd-data /var/lib/ceph/osd/${CLUSTER_NAME}-$ID/
2021-01-21 17:00:08.583 7f3acc546a80 -1 bluestore(/var/lib/ceph/osd/aap-storage-5/) _read_fsid unparsable uuid
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