第 12 章在 OpenShift Data Foundation 中恢复监控 pod

如果所有三个 pod 都停机，并且 OpenShift Data Foundation 无法自动恢复 monitor pod，则恢复 monitor pod。

注意

这是一个灾难恢复流程，必须在红帽支持团队的指导下执行。在上联系红帽支持团队，请联系红帽支持团队。

流程

缩减 rook-ceph-operator 和 ocs operator 部署。

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

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

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

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

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为 openshift-storage 命名空间中的所有部署创建备份。

mkdir backup

# mkdir backup

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cd backup

# cd backup

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oc project openshift-storage

# oc project openshift-storage

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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

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修补 Object Storage Device (OSD)部署以删除 livenessProbe 参数，并使用命令参数作为 sleep 运行它。

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

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从所有 OSD 检索 monstore 集群映射。

创建 restore_mon.sh 脚本。

#!/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

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运行 restore_mon.sh 脚本。
```
chmod +x recover_mon.sh
```
```
# chmod +x recover_mon.sh
```
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```
./recover_mon.sh
```
```
# ./recover_mon.sh
```
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修补 MON 部署，并使用命令参数作为 sleep 运行。

编辑 MON 部署。

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

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修补 MON 部署，以增加 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 -

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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 -

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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 -

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将之前检索到的 monstore 复制到 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/

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导航到 MON 容器集，再更改检索到的 monstore 的所有权。
```
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)
```
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```
chown -R ceph:ceph /tmp/monstore
```
```
# chown -R ceph:ceph /tmp/monstore
```
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在重新构建 mon db 之前，复制密钥环模板文件。

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)

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

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

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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 *”

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从对应的机密中识别所有其他 Ceph 守护进程(MGR、MDS、RGW、Crash、CSI 和 CSI 置备程序)的密钥环。

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"

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keyring 文件示例： /etc/ceph/ceph.client.admin.keyring ：

[mon.]
	key = AQDxTF1hNgLTNxAAi51cCojs01b4I5E6v2H8Uw==
	caps mon = "allow "
[client.admin]
        key = AQDxTF1hpzguOxAA0sS8nN4udoO35OEbt3bqMQ==
        caps mds = "allow " caps mgr = "allow *" caps mon = "allow *" caps osd = "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.rgw.ocs.storagecluster.cephobjectstore.a] key = AQCOkdBixmpiAxAA4X7zjn6SGTI9c1MBflszYA== caps mon = "allow rw" caps osd = "allow rwx" [mgr.a] key = AQBOTV1hGYOEORAA87471+eIZLZtptfkcHvTRg== caps mds = "allow *" caps mon = "allow profile mgr" 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"

[mon.]
	key = AQDxTF1hNgLTNxAAi51cCojs01b4I5E6v2H8Uw==
	caps mon = "allow "
[client.admin]
        key = AQDxTF1hpzguOxAA0sS8nN4udoO35OEbt3bqMQ==
        caps mds = "allow " caps mgr = "allow *" caps mon = "allow *" caps osd = "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.rgw.ocs.storagecluster.cephobjectstore.a] key = AQCOkdBixmpiAxAA4X7zjn6SGTI9c1MBflszYA== caps mon = "allow rw" caps osd = "allow rwx" [mgr.a] key = AQBOTV1hGYOEORAA87471+eIZLZtptfkcHvTRg== caps mds = "allow *" caps mon = "allow profile mgr" 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"

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重要

对于 client.csi 相关的密钥环，请参考前面的密钥环文件输出，并在从其相应的 OpenShift Data Foundation 机密获取密钥后添加默认 caps。
OSD 密钥环会在恢复后自动添加。

导航到 mon-a pod，再验证 monstore 是否具有 monmap。

进入 mon-a pod。

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)

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验证 monstore 是否具有 monmap。

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

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

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monmaptool /tmp/monmap --print

# monmaptool /tmp/monmap --print

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可选：如果缺少 monmap，则创建新的 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>
```
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<mon-a-id>
是 mon-a pod 的 ID。
<mon-a-ip>
是 mon-a pod 的 IP 地址。
<mon-b-id>
是 mon-b pod 的 ID。
<mon-b-ip>
是 mon-b pod 的 IP 地址。
<mon-c-id>
是 mon-c pod 的 ID。
<mon-c-ip>
是 mon-c pod 的 IP 地址。
<fsid>
是文件系统 ID。
验证 monmap。
```
monmaptool /root/monmap --print
```
```
# monmaptool /root/monmap --print
```
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导入 monmap。

重要

使用之前创建的 keyring 文件。

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

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

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chown -R ceph:ceph /tmp/monstore

# chown -R ceph:ceph /tmp/monstore

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创建旧 store.db 文件的备份。

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

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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

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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

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将重建 store.db 文件复制到 monstore 目录。

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

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

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

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在重建了 monstore 目录后，将 store.db 文件从本地复制到 MON 容器集的其余部分。

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

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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>

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<id>: 是 MON pod 的 ID

导航到 MON 容器集的其余部分，再更改复制的 monstore 的所有权。

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)

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

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

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<id>: 是 MON pod 的 ID

恢复补丁的更改。
- 对于 MON 部署：
  # oc replace --force -f <mon-deployment.yaml>
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  <mon-deployment.yaml>
  是 MON 部署 yaml 文件
- 对于 OSD 部署：
  # oc replace --force -f <osd-deployment.yaml>
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  <osd-deployment.yaml>
  是 OSD 部署 yaml 文件
- 对于 MGR 部署：
  # oc replace --force -f <mgr-deployment.yaml>
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  <mgr-deployment.yaml>
  是 MGR 部署 yaml 文件
  重要
  确保 MON、MGR 和 OSD 容器集已启动并在运行。

扩展 rook-ceph-operator 和 ocs-operator 部署。

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

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

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验证步骤

检查 Ceph 状态，以确认 CephFS 正在运行。

ceph -s

# ceph -s

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输出示例：

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

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检查 Multicloud Object Gateway (MCG)状态。它应当处于活动状态，并且后备存储和 bucket 类应处于 Ready 状态。
```
noobaa status -n openshift-storage
```
```
noobaa status -n openshift-storage
```
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重要
如果 MCG 没有处于 active 状态，且后备存储和存储桶类没有处于 Ready 状态，则需要重启所有 MCG 相关的 pod。如需更多信息，请参阅第 12.1 节 “恢复 Multicloud 对象网关”。

12.1. 恢复 Multicloud 对象网关
复制链接

如果 Multicloud Object Gateway (MCG)没有处于 active 状态，且后备存储和存储桶类没有处于 Ready 状态，您需要重启所有 MCG 相关的 pod，并检查 MCG 状态以确认 MCG 已备份并在运行。

流程

重启与 MCG 相关的所有 pod。

oc delete pods <noobaa-operator> -n openshift-storage

# oc delete pods <noobaa-operator> -n openshift-storage

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oc delete pods <noobaa-core> -n openshift-storage

# oc delete pods <noobaa-core> -n openshift-storage

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oc delete pods <noobaa-endpoint> -n openshift-storage

# oc delete pods <noobaa-endpoint> -n openshift-storage

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oc delete pods <noobaa-db> -n openshift-storage

# oc delete pods <noobaa-db> -n openshift-storage

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<noobaa-operator>: 是 MCG operator 的名称
<noobaa-core>: 是 MCG 核心 pod 的名称
<noobaa-endpoint>: 是 MCG 端点的名称
<noobaa-db>: 是 MCG db pod 的名称

如果配置了 RADOS 对象网关(RGW)，请重新启动容器集。
```
oc delete pods <rgw-pod> -n openshift-storage
```
```
# oc delete pods <rgw-pod> -n openshift-storage
```
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<rgw-pod>
是 RGW pod 的名称

注意

在 OpenShift Container Platform 4.11 中，在恢复后，RBD PVC 无法挂载到应用程序 pod 上。因此，您需要重启托管应用容器集的节点。要获取托管应用程序 pod 的节点名称，请运行以下命令：

oc get pods <application-pod> -n <namespace> -o yaml | grep nodeName

# oc get pods <application-pod> -n <namespace> -o yaml | grep nodeName
  nodeName: node_name

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第 12 章在 OpenShift Data Foundation 中恢复监控 pod

12.1. 恢复 Multicloud 对象网关
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第 12 章 在 OpenShift Data Foundation 中恢复监控 pod

12.1. 恢复 Multicloud 对象网关复制链接链接已复制到粘贴板!

学习

尝试、购买和销售

社区

关于红帽文档

让开源更具包容性

關於紅帽

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Red Hat legal and privacy links

Red Hat legal and privacy links

第 12 章在 OpenShift Data Foundation 中恢复监控 pod

12.1. 恢复 Multicloud 对象网关
复制链接