Este conteúdo não está disponível no idioma selecionado.

Chapter 10. Restoring the monitor pods in OpenShift Container Storage

Restore the monitor pods if all three of them go down, and when OpenShift Container Storage is not able to recover the monitor pods automatically.

Procedure

Scale down the rook-ceph-operator and ocs operator deployments.

oc scale deployment rook-ceph-operator --replicas=0 -n openshift-storage

# oc scale deployment rook-ceph-operator --replicas=0 -n openshift-storage

Copy to Clipboard

Toggle word wrap

oc scale deployment ocs-operator --replicas=0 -n openshift-storage

# oc scale deployment ocs-operator --replicas=0 -n openshift-storage

Copy to Clipboard

Toggle word wrap

Create a backup of all deployments in the openshift-storage namespace.

mkdir backup

# mkdir backup

Copy to Clipboard

Toggle word wrap

cd backup

# cd backup

Copy to Clipboard

Toggle word wrap

oc project openshift-storage

# oc project openshift-storage

Copy to Clipboard

Toggle word wrap

for d in $(oc get deployment|awk -F' ' '{print $1}'|grep -v NAME); do echo $d;oc get deployment $d -o yaml > oc_get_deployment.${d}.yaml; done

# for d in $(oc get deployment|awk -F' ' '{print $1}'|grep -v NAME); do echo $d;oc get deployment $d -o yaml > oc_get_deployment.${d}.yaml; done

Copy to Clipboard

Toggle word wrap

Patch the OSD deployments to remove the livenessProbe parameter, and run it with the command parameter as sleep.

for i in $(oc get deployment -l app=rook-ceph-osd -oname);do oc patch ${i} -n openshift-storage --type='json' -p '[{"op":"remove", "path":"/spec/template/spec/containers/0/livenessProbe"}]' ; oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "osd", "command": ["sleep", "infinity"], "args": []}]}}}}' ; done

# for i in $(oc get deployment -l app=rook-ceph-osd -oname);do oc patch ${i} -n openshift-storage --type='json' -p '[{"op":"remove", "path":"/spec/template/spec/containers/0/livenessProbe"}]' ; oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "osd", "command": ["sleep", "infinity"], "args": []}]}}}}' ; done

Copy to Clipboard

Toggle word wrap

Retrieve the monstore cluster map from all the OSDs.

Create the recover_mon.sh script.

#!/bin/bash
ms=/tmp/monstore

rm -rf $ms
mkdir $ms

for osd_pod in $(oc get po -l app=rook-ceph-osd -oname -n openshift-storage); do

  echo "Starting with pod: $osd_pod"

  podname=$(echo $osd_pod|sed 's/pod\///g')
  oc exec $osd_pod -- rm -rf $ms
  oc cp $ms $podname:$ms

  rm -rf $ms
  mkdir $ms

  echo "pod in loop: $osd_pod ; done deleting local dirs"

  oc exec $osd_pod -- ceph-objectstore-tool --type bluestore --data-path /var/lib/ceph/osd/ceph-$(oc get $osd_pod -ojsonpath='{ .metadata.labels.ceph_daemon_id }') --op update-mon-db --no-mon-config --mon-store-path $ms
  echo "Done with COT on pod: $osd_pod"

  oc cp $podname:$ms $ms

  echo "Finished pulling COT data from pod: $osd_pod"
done

#!/bin/bash
ms=/tmp/monstore

rm -rf $ms
mkdir $ms

for osd_pod in $(oc get po -l app=rook-ceph-osd -oname -n openshift-storage); do

  echo "Starting with pod: $osd_pod"

  podname=$(echo $osd_pod|sed 's/pod\///g')
  oc exec $osd_pod -- rm -rf $ms
  oc cp $ms $podname:$ms

  rm -rf $ms
  mkdir $ms

  echo "pod in loop: $osd_pod ; done deleting local dirs"

  oc exec $osd_pod -- ceph-objectstore-tool --type bluestore --data-path /var/lib/ceph/osd/ceph-$(oc get $osd_pod -ojsonpath='{ .metadata.labels.ceph_daemon_id }') --op update-mon-db --no-mon-config --mon-store-path $ms
  echo "Done with COT on pod: $osd_pod"

  oc cp $podname:$ms $ms

  echo "Finished pulling COT data from pod: $osd_pod"
done

Copy to Clipboard

Toggle word wrap

Run the recover_mon.sh script.
```
chmod +x recover_mon.sh
```
```
# chmod +x recover_mon.sh
```
Copy to Clipboard Toggle word wrap
```
./recover_mon.sh
```
```
# ./recover_mon.sh
```
Copy to Clipboard Toggle word wrap

Patch the MON deployments, and run it with the command parameter as sleep.

Edit the MON deployments.

for i in $(oc get deployment -l app=rook-ceph-mon -oname);do oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "mon", "command": ["sleep", "infinity"], "args": []}]}}}}'; done

# for i in $(oc get deployment -l app=rook-ceph-mon -oname);do oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "mon", "command": ["sleep", "infinity"], "args": []}]}}}}'; done

Copy to Clipboard

Toggle word wrap

Patch the MON deployments to increase the initialDelaySeconds.

oc get deployment rook-ceph-mon-a -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

# oc get deployment rook-ceph-mon-a -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

Copy to Clipboard

Toggle word wrap

oc get deployment rook-ceph-mon-b -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

# oc get deployment rook-ceph-mon-b -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

Copy to Clipboard

Toggle word wrap

oc get deployment rook-ceph-mon-c -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

# oc get deployment rook-ceph-mon-c -o yaml | sed "s/initialDelaySeconds: 10/initialDelaySeconds: 2000/g" | oc replace -f -

Copy to Clipboard

Toggle word wrap

Copy the previously retrieved monstore to the mon-a pod.

oc cp /tmp/monstore/ $(oc get po -l app=rook-ceph-mon,mon=a -oname |sed 's/pod\///g'):/tmp/

# oc cp /tmp/monstore/ $(oc get po -l app=rook-ceph-mon,mon=a -oname |sed 's/pod\///g'):/tmp/

Copy to Clipboard

Toggle word wrap

Navigate into the MON pod and change the ownership of the retrieved monstore.
```
oc rsh $(oc get po -l app=rook-ceph-mon,mon=a -oname)
```
```
# oc rsh $(oc get po -l app=rook-ceph-mon,mon=a -oname)
```
Copy to Clipboard Toggle word wrap
```
chown -R ceph:ceph /tmp/monstore
```
```
# chown -R ceph:ceph /tmp/monstore
```
Copy to Clipboard Toggle word wrap

Set the appropriate capabilities before rebuilding the MON DB.

oc rsh $(oc get po -l app=rook-ceph-mon,mon=a -oname)

# oc rsh $(oc get po -l app=rook-ceph-mon,mon=a -oname)

Copy to Clipboard

Toggle word wrap

cp /etc/ceph/keyring-store/keyring /tmp/keyring

# cp /etc/ceph/keyring-store/keyring /tmp/keyring

Copy to Clipboard

Toggle word wrap

cat /tmp/keyring
  [mon.]
    key = AQCleqldWqm5IhAAgZQbEzoShkZV42RiQVffnA==
    caps mon = "allow *"
  [client.admin]
    key = AQCmAKld8J05KxAArOWeRAw63gAwwZO5o75ZNQ==
    auid = 0
    caps mds = "allow *"
    caps mgr = "allow *"
    caps mon = "allow *"
    caps osd = "allow *”

# cat /tmp/keyring
  [mon.]
    key = AQCleqldWqm5IhAAgZQbEzoShkZV42RiQVffnA==
    caps mon = "allow *"
  [client.admin]
    key = AQCmAKld8J05KxAArOWeRAw63gAwwZO5o75ZNQ==
    auid = 0
    caps mds = "allow *"
    caps mgr = "allow *"
    caps mon = "allow *"
    caps osd = "allow *”

Copy to Clipboard

Toggle word wrap

Identify the keyring of all the other Ceph daemons (MGR, MDS, RGW, Crash, CSI and CSI provisioners) from its respective secrets.

oc get secret rook-ceph-mds-ocs-storagecluster-cephfilesystem-a-keyring -ojson  | jq .data.keyring | xargs echo | base64 -d

# oc get secret rook-ceph-mds-ocs-storagecluster-cephfilesystem-a-keyring -ojson  | jq .data.keyring | xargs echo | base64 -d

[mds.ocs-storagecluster-cephfilesystem-a]
key = AQB3r8VgAtr6OhAAVhhXpNKqRTuEVdRoxG4uRA==
caps mon = "allow profile mds"
caps osd = "allow *"
caps mds = "allow"

Copy to Clipboard

Toggle word wrap

Example keyring file, /etc/ceph/ceph.client.admin.keyring:

[mon.]
	key = AQDxTF1hNgLTNxAAi51cCojs01b4I5E6v2H8Uw==
	caps mon = "allow " [mds.ocs-storagecluster-cephfilesystem-a] key = AQCKTV1horgjARAA8aF/BDh/4+eG4RCNBCl+aw== caps mds = "allow" caps mon = "allow profile mds" caps osd = "allow *" [mds.ocs-storagecluster-cephfilesystem-b] key = AQCKTV1hN4gKLBAA5emIVq3ncV7AMEM1c1RmGA== caps mds = "allow" caps mon = "allow profile mds" caps osd = "allow *" [client.admin] key = AQDxTF1hpzguOxAA0sS8nN4udoO35OEbt3bqMQ== caps mds = "allow *" caps mgr = "allow *" caps mon = "allow *" caps osd = "allow *" [client.crash] key = AQBOTV1htO1aGRAAe2MPYcGdiAT+Oo4CNPSF1g== caps mgr = "allow rw" caps mon = "allow profile crash" [client.csi-cephfs-node] key = AQBOTV1hiAtuBBAAaPPBVgh1AqZJlDeHWdoFLw== caps mds = "allow rw" caps mgr = "allow rw" caps mon = "allow r" caps osd = "allow rw tag cephfs *="
[client.csi-cephfs-provisioner]
	key = AQBNTV1hHu6wMBAAzNXZv36aZJuE1iz7S7GfeQ==
	caps mgr = "allow rw"
	caps mon = "allow r"
	caps osd = "allow rw tag cephfs metadata=*"
[client.csi-rbd-node]
	key = AQBNTV1h+LnkIRAAWnpIN9bUAmSHOvJ0EJXHRw==
	caps mgr = "allow rw"
	caps mon = "profile rbd"
	caps osd = "profile rbd"
[client.csi-rbd-provisioner]
	key = AQBNTV1hMNcsExAAvA3gHB2qaY33LOdWCvHG/A==
	caps mgr = "allow rw"
	caps mon = "profile rbd"
	caps osd = "profile rbd"
[mgr.a]
	key = AQBOTV1hGYOEORAA87471+eIZLZtptfkcHvTRg==
	caps mds = "allow *"
	caps mon = "allow profile mgr"
	caps osd = "allow *"

[mon.]
	key = AQDxTF1hNgLTNxAAi51cCojs01b4I5E6v2H8Uw==
	caps mon = "allow " [mds.ocs-storagecluster-cephfilesystem-a] key = AQCKTV1horgjARAA8aF/BDh/4+eG4RCNBCl+aw== caps mds = "allow" caps mon = "allow profile mds" caps osd = "allow *" [mds.ocs-storagecluster-cephfilesystem-b] key = AQCKTV1hN4gKLBAA5emIVq3ncV7AMEM1c1RmGA== caps mds = "allow" caps mon = "allow profile mds" caps osd = "allow *" [client.admin] key = AQDxTF1hpzguOxAA0sS8nN4udoO35OEbt3bqMQ== caps mds = "allow *" caps mgr = "allow *" caps mon = "allow *" caps osd = "allow *" [client.crash] key = AQBOTV1htO1aGRAAe2MPYcGdiAT+Oo4CNPSF1g== caps mgr = "allow rw" caps mon = "allow profile crash" [client.csi-cephfs-node] key = AQBOTV1hiAtuBBAAaPPBVgh1AqZJlDeHWdoFLw== caps mds = "allow rw" caps mgr = "allow rw" caps mon = "allow r" caps osd = "allow rw tag cephfs *="
[client.csi-cephfs-provisioner]
	key = AQBNTV1hHu6wMBAAzNXZv36aZJuE1iz7S7GfeQ==
	caps mgr = "allow rw"
	caps mon = "allow r"
	caps osd = "allow rw tag cephfs metadata=*"
[client.csi-rbd-node]
	key = AQBNTV1h+LnkIRAAWnpIN9bUAmSHOvJ0EJXHRw==
	caps mgr = "allow rw"
	caps mon = "profile rbd"
	caps osd = "profile rbd"
[client.csi-rbd-provisioner]
	key = AQBNTV1hMNcsExAAvA3gHB2qaY33LOdWCvHG/A==
	caps mgr = "allow rw"
	caps mon = "profile rbd"
	caps osd = "profile rbd"
[mgr.a]
	key = AQBOTV1hGYOEORAA87471+eIZLZtptfkcHvTRg==
	caps mds = "allow *"
	caps mon = "allow profile mgr"
	caps osd = "allow *"

Copy to Clipboard

Toggle word wrap

Important

For client.csi related keyring, add the default caps after fetching the key from its respective OpenShift Container Storage secret.
OSD keyring is added automatically post recovery.

Navigate into the mon-a pod.

Verify that the monstore has monmap.

ceph-monstore-tool /tmp/monstore get monmap -- --out /tmp/monmap

# ceph-monstore-tool /tmp/monstore get monmap -- --out /tmp/monmap

Copy to Clipboard

Toggle word wrap

monmaptool /tmp/monmap --print

# monmaptool /tmp/monmap --print

Copy to Clipboard

Toggle word wrap

If the monmap is missing then create a new monmap.

monmaptool --create --add <mon-a-id> <mon-a-ip> --add <mon-b-id> <mon-b-ip> --add <mon-c-id> <mon-c-ip> --enable-all-features --clobber /root/monmap --fsid <fsid>

# monmaptool --create --add <mon-a-id> <mon-a-ip> --add <mon-b-id> <mon-b-ip> --add <mon-c-id> <mon-c-ip> --enable-all-features --clobber /root/monmap --fsid <fsid>

Copy to Clipboard

Toggle word wrap

<mon-a-id>: Is the ID of the mon-a pod
<mon-a-ip>: Is the IP address of the mon-a pod
<mon-b-id>: Is the ID of the mon-b pod
<mon-b-ip>: Is the IP address of the mon-b pod
<mon-c-id>: Is the ID of the mon-c pod
<mon-c-ip>: Is the IP address of the mon-c pod
<fsid>: Is the file system ID

Verify the monmap.
```
monmaptool /root/monmap --print
```
```
# monmaptool /root/monmap --print
```
Copy to Clipboard Toggle word wrap

Import the monmap.

Important

Use the previously created keyring file.

ceph-monstore-tool /tmp/monstore rebuild -- --keyring /tmp/keyring --monmap /root/monmap

# ceph-monstore-tool /tmp/monstore rebuild -- --keyring /tmp/keyring --monmap /root/monmap

Copy to Clipboard

Toggle word wrap

chown -R ceph:ceph /tmp/monstore

# chown -R ceph:ceph /tmp/monstore

Copy to Clipboard

Toggle word wrap

Create a backup of the old store.db file.

mv /var/lib/ceph/mon/ceph-a/store.db /var/lib/ceph/mon/ceph-a/store.db.corrupted

# mv /var/lib/ceph/mon/ceph-a/store.db /var/lib/ceph/mon/ceph-a/store.db.corrupted

Copy to Clipboard

Toggle word wrap

mv /var/lib/ceph/mon/ceph-b/store.db /var/lib/ceph/mon/ceph-b/store.db.corrupted

# mv /var/lib/ceph/mon/ceph-b/store.db /var/lib/ceph/mon/ceph-b/store.db.corrupted

Copy to Clipboard

Toggle word wrap

mv /var/lib/ceph/mon/ceph-c/store.db /var/lib/ceph/mon/ceph-c/store.db.corrupted

# mv /var/lib/ceph/mon/ceph-c/store.db /var/lib/ceph/mon/ceph-c/store.db.corrupted

Copy to Clipboard

Toggle word wrap

Copy the rebuild store.db file to the monstore directory.

mv /tmp/monstore/store.db /var/lib/ceph/mon/ceph-a/store.db

# mv /tmp/monstore/store.db /var/lib/ceph/mon/ceph-a/store.db

Copy to Clipboard

Toggle word wrap

chown -R ceph:ceph /var/lib/ceph/mon/ceph-a/store.db

# chown -R ceph:ceph /var/lib/ceph/mon/ceph-a/store.db

Copy to Clipboard

Toggle word wrap

After rebuilding the monstore directory, copy the store.db file from local to the rest of the MON pods.

oc cp $(oc get po -l app=rook-ceph-mon,mon=a -oname | sed 's/pod\///g'):/var/lib/ceph/mon/ceph-a/store.db /tmp/store.db

# oc cp $(oc get po -l app=rook-ceph-mon,mon=a -oname | sed 's/pod\///g'):/var/lib/ceph/mon/ceph-a/store.db /tmp/store.db

Copy to Clipboard

Toggle word wrap

oc cp /tmp/store.db $(oc get po -l app=rook-ceph-mon,mon=<id> -oname | sed 's/pod\///g'):/var/lib/ceph/mon/ceph-<id>

# oc cp /tmp/store.db $(oc get po -l app=rook-ceph-mon,mon=<id> -oname | sed 's/pod\///g'):/var/lib/ceph/mon/ceph-<id>

Copy to Clipboard

Toggle word wrap

<id>: Is the ID of the MON pod

Navigate into the rest of the MON pods and change the ownership of the copied monstore.

oc rsh $(oc get po -l app=rook-ceph-mon,mon=<id> -oname)

# oc rsh $(oc get po -l app=rook-ceph-mon,mon=<id> -oname)

Copy to Clipboard

Toggle word wrap

chown -R ceph:ceph /var/lib/ceph/mon/ceph-<id>/store.db

# chown -R ceph:ceph /var/lib/ceph/mon/ceph-<id>/store.db

Copy to Clipboard

Toggle word wrap

<id>: Is the ID of the MON pod

Revert the patched changes.
- For MON deployments:
  # oc replace --force -f <mon-deployment.yaml>
  Copy to Clipboard Toggle word wrap
  <mon-deployment.yaml>
  Is the MON deployment yaml file
- For OSD deployments:
  # oc replace --force -f <osd-deployment.yaml>
  Copy to Clipboard Toggle word wrap
  <osd-deployment.yaml>
  Is the OSD deployment yaml file
- For MGR deployments:
  # oc replace --force -f <mgr-deployment.yaml>
  Copy to Clipboard Toggle word wrap
  <mgr-deployment.yaml>
  Is the MGR deployment yaml file
  Important
  Ensure that the MON, MGR and OSD pods are up and running.

Scale up the rook-ceph-operator and ocs-operator deployments.

oc -n openshift-storage scale deployment rook-ceph-operator --replicas=1

# oc -n openshift-storage scale deployment rook-ceph-operator --replicas=1

Copy to Clipboard

Toggle word wrap

oc -n openshift-storage scale deployment ocs-operator --replicas=1

# oc -n openshift-storage scale deployment ocs-operator --replicas=1

Copy to Clipboard

Toggle word wrap

Restoring the CephFS

Check the Ceph status to confirm that CephFS is running.

ceph -s

# ceph -s

Copy to Clipboard

Toggle word wrap

Example output:

cluster:
   id:     f111402f-84d1-4e06-9fdb-c27607676e55
   health: HEALTH_ERR
            1 filesystem is offline
            1 filesystem is online with fewer MDS than max_mds
            3 daemons have recently crashed

   services:
     mon: 3 daemons, quorum b,c,a (age 15m)
     mgr: a(active, since 14m)
     mds: ocs-storagecluster-cephfilesystem:0
     osd: 3 osds: 3 up (since 15m), 3 in (since 2h)

   data:
     pools:   3 pools, 96 pgs
     objects: 500 objects, 1.1 GiB
     usage:   5.5 GiB used, 295 GiB / 300 GiB avail
     pgs:     96 active+clean

cluster:
   id:     f111402f-84d1-4e06-9fdb-c27607676e55
   health: HEALTH_ERR
            1 filesystem is offline
            1 filesystem is online with fewer MDS than max_mds
            3 daemons have recently crashed

   services:
     mon: 3 daemons, quorum b,c,a (age 15m)
     mgr: a(active, since 14m)
     mds: ocs-storagecluster-cephfilesystem:0
     osd: 3 osds: 3 up (since 15m), 3 in (since 2h)

   data:
     pools:   3 pools, 96 pgs
     objects: 500 objects, 1.1 GiB
     usage:   5.5 GiB used, 295 GiB / 300 GiB avail
     pgs:     96 active+clean

Copy to Clipboard

Toggle word wrap

If the filesystem is offline or MDS service is missing, perform the following steps:

Scale down the rook-ceph-operator and ocs operator deployments.

oc scale deployment rook-ceph-operator --replicas=0 -n openshift-storage

# oc scale deployment rook-ceph-operator --replicas=0 -n openshift-storage

Copy to Clipboard

Toggle word wrap

oc scale deployment ocs-operator --replicas=0 -n openshift-storage

# oc scale deployment ocs-operator --replicas=0 -n openshift-storage

Copy to Clipboard

Toggle word wrap

Patch the MDS deployments to remove the livenessProbe parameter and run it with the command parameter as sleep.

for i in $(oc get deployment -l app=rook-ceph-mds -oname);do oc patch ${i} -n openshift-storage --type='json' -p '[{"op":"remove", "path":"/spec/template/spec/containers/0/livenessProbe"}]' ; oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "mds", "command": ["sleep", "infinity"], "args": []}]}}}}' ; done

# for i in $(oc get deployment -l app=rook-ceph-mds -oname);do oc patch ${i} -n openshift-storage --type='json' -p '[{"op":"remove", "path":"/spec/template/spec/containers/0/livenessProbe"}]' ; oc patch ${i} -n openshift-storage -p '{"spec": {"template": {"spec": {"containers": [{"name": "mds", "command": ["sleep", "infinity"], "args": []}]}}}}' ; done

Copy to Clipboard

Toggle word wrap

Recover the CephFS.

ceph fs reset ocs-storagecluster-cephfilesystem --yes-i-really-mean-it

# ceph fs reset ocs-storagecluster-cephfilesystem --yes-i-really-mean-it

Copy to Clipboard

Toggle word wrap

If the reset command fails, force create the default filesystem with the data and metadata pools, and then reset it.

Note

The reset command might fail if the cephfilesystem is missing.

ceph fs new ocs-storagecluster-cephfilesystem ocs-storagecluster-cephfilesystem-metadata ocs-storagecluster-cephfilesystem-data0 --force

# ceph fs new ocs-storagecluster-cephfilesystem ocs-storagecluster-cephfilesystem-metadata ocs-storagecluster-cephfilesystem-data0 --force

Copy to Clipboard

Toggle word wrap

ceph fs reset ocs-storagecluster-cephfilesystem --yes-i-really-mean-it

# ceph fs reset ocs-storagecluster-cephfilesystem --yes-i-really-mean-it

Copy to Clipboard

Toggle word wrap

Replace the MDS deployments.

oc replace --force -f oc_get_deployment.rook-ceph-mds-ocs-storagecluster-cephfilesystem-a.yaml

# oc replace --force -f oc_get_deployment.rook-ceph-mds-ocs-storagecluster-cephfilesystem-a.yaml

Copy to Clipboard

Toggle word wrap

oc replace --force -f oc_get_deployment.rook-ceph-mds-ocs-storagecluster-cephfilesystem-b.yaml

# oc replace --force -f oc_get_deployment.rook-ceph-mds-ocs-storagecluster-cephfilesystem-b.yaml

Copy to Clipboard

Toggle word wrap

Scale up the rook-ceph-operator and ocs-operator deployments.

oc scale deployment rook-ceph-operator --replicas=1 -n openshift-storage

# oc scale deployment rook-ceph-operator --replicas=1 -n openshift-storage

Copy to Clipboard

Toggle word wrap

oc scale deployment ocs-operator --replicas=1 -n openshift-storage

# oc scale deployment ocs-operator --replicas=1 -n openshift-storage

Copy to Clipboard

Toggle word wrap

Check the CephFS status.
```
ceph fs status
```
```
# ceph fs status
```
Copy to Clipboard Toggle word wrap
The status should be active.

Important

If the application pods attached to the deployments which were using the CephFS Persistent Volume Claims (PVCs) get stuck in CreateContainerError state post restoring the CephFS, restart the application pods.
```
oc -n <namespace> delete pods <cephfs-app-pod>
```
```
# oc -n <namespace> delete pods <cephfs-app-pod>
```
Copy to Clipboard Toggle word wrap
<namespace>
Is the project namespace
<cephfs-app-pod>
Is the name of the CephFS application pod
If new CephFS or RBD PVCs are not getting bound, restart all the pods related to Ceph CSI.

Restoring the Multicloud Object Gateway

Post restoring the MON pods, check the Multicloud Object Gateway (MCG) status, it should be active, and the backingstore and bucketclass should be in Ready state. If not, restart all the MCG related pods and check the MCG status to confirm that the MCG is back up and running.

Check the MCG status.
```
noobaa status -n openshift-storage
```
```
noobaa status -n openshift-storage
```
Copy to Clipboard Toggle word wrap
Restart all the pods related to the MCG.
```
oc delete pods <noobaa-operator> -n openshift-storage
```
```
# oc delete pods <noobaa-operator> -n openshift-storage
```
Copy to Clipboard Toggle word wrap
```
oc delete pods <noobaa-core> -n openshift-storage
```
```
# oc delete pods <noobaa-core> -n openshift-storage
```
Copy to Clipboard Toggle word wrap
```
oc delete pods <noobaa-endpoint> -n openshift-storage
```
```
# oc delete pods <noobaa-endpoint> -n openshift-storage
```
Copy to Clipboard Toggle word wrap
```
oc delete pods <noobaa-db> -n openshift-storage
```
```
# oc delete pods <noobaa-db> -n openshift-storage
```
Copy to Clipboard Toggle word wrap
<noobaa-operator>
Is the name of the MCG operator
<noobaa-core>
Is the name of the MCG core pod
<noobaa-endpoint>
Is the name of the MCG endpoint
<noobaa-db>
Is the name of the MCG db pod
If the RADOS Object Gateway (RGW) is configured, restart the pod.
```
oc delete pods <rgw-pod> -n openshift-storage
```
```
# oc delete pods <rgw-pod> -n openshift-storage
```
Copy to Clipboard Toggle word wrap
<rgw-pod>
Is the name of the RGW pod

Este conteúdo não está disponível no idioma selecionado.

Chapter 10. Restoring the monitor pods in OpenShift Container Storage

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Tornando o open source mais inclusivo

Sobre a Red Hat

Theme

Red Hat legal and privacy links

Red Hat legal and privacy links