# Does percona mongodb-operator minimal-cluster supports backup?

**URL:** <https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541>\
**Category:** Percona Operator for MongoDB\
**Created:** [April 4, 2024, 7:29am UTC](https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541 "2024-04-04T07:29:01Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Raji](https://avatars.discourse-cdn.com/v4/letter/r/eb8c5e/32.png) [@Raji](https://forums.percona.com/u/Raji)\
**Post date:** [April 4, 2024, 7:29am UTC](https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541/1 "2024-04-04T07:29:01Z")

</div>

## Description:

Does percona mongodb-operator minimal-cluster supports backup? When I use minimal-cluster and try to implement backup, I get error as " Error: no available agent(s) on replsets: rs0, cfg"

## Steps to Reproduce:

1. Have used cw-bundle.yaml (cluster-wide)
2. Have used cr-minimal.yaml. The cluster is up and running with cfg, rs0 and mongos
3. The backup secrets are added.
4. Have applied backup.yaml

## Version:

1.15.0

## Logs:

```auto
kubectl describe psmdb-backup backup4 -n psmdb
Name: backup4
Namespace: psmdb
Labels: <none>
Annotations: <none>
API Version: psmdb.percona.com/v1
Kind: PerconaServerMongoDBBackup
Metadata:
  Creation Timestamp: 2024-04-04T05:45:54Z
  Finalizers:
    delete-backup
  Generation: 1
  Resource Version: 1912835
  UID: 0f6673c7-5b9c-4b60-abd9-444a3f5985cd
Spec:
  Cluster Name: minimal-cluster
  Storage Name: azure-blob
  Type: logical
Status:
  Azure:
    Container: mongos
    Credentials Secret: my-cluster-azure-secret1
    Prefix: psmdb
  Destination: azure://mongos/psmdb/2024-04-04T05:46:16Z
  Error: no available agent(s) on replsets: rs0, cfg
  Last Transition: 2024-04-04T05:46:16Z
  Pbm Name: 2024-04-04T05:46:16Z
  Replset Names:
    cfg
    rs0
  Start: 2024-04-04T05:46:16Z
  State: error
  Storage Name: azure-blob
  Type: logical
Events: <none>

```

## Expected Result:

Backup should be successful

## Actual Result:

Error: no available agent(s) on replsets: rs0, cfg

## Additional Information:

Able to perform backup with cr.yaml

```auto
kubectl get psmdb-backup -n psmdb
NAME CLUSTER STORAGE DESTINATION TYPE STATUS COMPLETED AGE
backup4 minimal-cluster azure-blob azure://mongos/psmdb/2024-04-04T05:46:16Z logical error 49s

```

Tried to increase the cfg,rs0,mongos size as well to 2, but still same error

```auto
kubectl get pods -n psmdb | grep minimal
minimal-cluster-cfg-0 2/2 Running 0 2m3s
minimal-cluster-cfg-1 2/2 Running 0 2m32s
minimal-cluster-mongos-0 1/1 Running 0 6m46s
minimal-cluster-rs0-0 2/2 Running 0 2m
minimal-cluster-rs0-1 2/2 Running 0 2m31s

```

---

<div class="post-metadata">

**Author:** ![Raji](https://avatars.discourse-cdn.com/v4/letter/r/eb8c5e/32.png) [@Raji](https://forums.percona.com/u/Raji)\
**Post date:** [April 4, 2024, 7:35am UTC](https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541/2 "2024-04-04T07:35:00Z")

</div>

```auto
kubectl exec -it minimal-cluster-cfg-0 -c backup-agent -n psmdb -- bash
bash-4.4$ 
bash-4.4$ 
bash-4.4$ pbm logs
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] node: cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] pbm-agent:
Version: 2.3.0
Platform: linux/amd64
GitCommit: 3b1c2e263901cf041c6b83547f6f28ac2879911f
GitBranch: release-2.3.0
BuildTime: 2023-09-20_14:42_UTC
GoVersion: go1.19
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] node: rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] pbm-agent:
Version: 2.3.0
Platform: linux/amd64
GitCommit: 3b1c2e263901cf041c6b83547f6f28ac2879911f
GitBranch: release-2.3.0
BuildTime: 2023-09-20_14:42_UTC
GoVersion: go1.19
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] node: rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] [backup/2024-04-04T07:29:57Z] mark backup as error `no available agent(s) on replsets: rs0, cfg`: <nil>
2024-04-04T07:29:57Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:58Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:58Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
bash-4.4$ 
bash-4.4$ 
bash-4.4$ 
bash-4.4$ 
bash-4.4$ pbm status
^C
bash-4.4$ 

```

---

<div class="post-metadata">

**Author:** ![Raji](https://avatars.discourse-cdn.com/v4/letter/r/eb8c5e/32.png) [@Raji](https://forums.percona.com/u/Raji)\
**Post date:** [April 4, 2024, 7:37am UTC](https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541/3 "2024-04-04T07:37:08Z")

</div>

```auto
 kubectl exec -it minimal-cluster-rs0-0 -c backup-agent -n psmdb -- bash
bash-4.4$ 
bash-4.4$ 
bash-4.4$ pbm status

^C
bash-4.4$ pbm logs
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] node: cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017
2024-04-04T07:28:16Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] pbm-agent:
Version: 2.3.0
Platform: linux/amd64
GitCommit: 3b1c2e263901cf041c6b83547f6f28ac2879911f
GitBranch: release-2.3.0
BuildTime: 2023-09-20_14:42_UTC
GoVersion: go1.19
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] node: rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017
2024-04-04T07:28:53Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] pbm-agent:
Version: 2.3.0
Platform: linux/amd64
GitCommit: 3b1c2e263901cf041c6b83547f6f28ac2879911f
GitBranch: release-2.3.0
BuildTime: 2023-09-20_14:42_UTC
GoVersion: go1.19
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] starting PITR routine
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] node: rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017
2024-04-04T07:29:02Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] listening for the commands
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-0.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:57Z I [cfg/minimal-cluster-cfg-1.minimal-cluster-cfg.psmdb.svc.cluster.local:27017] [backup/2024-04-04T07:29:57Z] mark backup as error `no available agent(s) on replsets: rs0, cfg`: <nil>
2024-04-04T07:29:57Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:57Z I [rs0/minimal-cluster-rs0-1.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
2024-04-04T07:29:58Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got command backup [name: 2024-04-04T07:29:57Z, compression: gzip (level: default)] <ts: 1712215797>
2024-04-04T07:29:58Z I [rs0/minimal-cluster-rs0-0.minimal-cluster-rs0.psmdb.svc.cluster.local:27017] got epoch {1712215785 2}
bash-4.4$ 
bash-4.4$ 
bash-4.4$ 
bash-4.4$ 
bash-4.4$ pbm backup
Error: backup pre-check: no available agent(s) on replsets: rs0, cfg
bash-4.4$ 
bash-4.4$ 
bash-4.4$ pbm backup --type logical
Error: backup pre-check: no available agent(s) on replsets: rs0, cfg
bash-4.4$ 
bash-4.4$ 
bash-4.4$ 

```

Below is the cr-minimal.yaml which I have used, added the backup config in the bottom

```auto
cat cr-minimal.yaml 
apiVersion: psmdb.percona.com/v1
kind: PerconaServerMongoDB
metadata:
  name: minimal-cluster
spec:
  crVersion: 1.15.0
  image: percona/percona-server-mongodb:6.0.9-7
  allowUnsafeConfigurations: true
  upgradeOptions:
    apply: disabled
    schedule: "0 2 * * *"
  secrets:
    users: minimal-cluster
  replsets:
  - name: rs0
    size: 2
    volumeSpec:
      persistentVolumeClaim:
        resources:
          requests:
            storage: 3Gi

  sharding:
    enabled: true

    configsvrReplSet:
      size: 2
      volumeSpec:
        persistentVolumeClaim:
          resources:
            requests:
              storage: 3Gi

    mongos:
      size: 2  
  backup:
    enabled: true
    image: percona/percona-backup-mongodb:2.3.0
    serviceAccountName: percona-server-mongodb-operator
# annotations:
# iam.amazonaws.com/role: role-arn
# resources:
# limits:
# cpu: "300m"
# memory: "0.5G"
# requests:
# cpu: "300m"
# memory: "0.5G"
    storages:
      azure-blob:
        type: azure
        azure:
          container: mongos
          prefix: psmdb
          credentialsSecret: my-cluster-azure-secret1
    pitr:
      enabled: false
      oplogOnly: false
# oplogSpanMin: 10
      compressionType: gzip
      compressionLevel: 6
# tasks:
# - name: daily-s3-us-west
# enabled: true
# schedule: "0 0 * * *"
# keep: 3
# storageName: s3-us-west
# compressionType: gzip
# compressionLevel: 6
# - name: weekly-s3-us-west
# enabled: false
# schedule: "0 0 * * 0"
# keep: 5
# storageName: s3-us-west
# compressionType: gzip
# compressionLevel: 6
# - name: weekly-s3-us-west-physical
# enabled: false
# schedule: "0 5 * * 0"
# keep: 5
# type: physical
# storageName: s3-us-west
# compressionType: gzip
# compressionLevel: 6

```

---

<div class="post-metadata">

**Author:** ![Sergey\_Pronin](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/sergey_pronin/32/14887_2.png) [@Sergey\_Pronin](https://forums.percona.com/u/Sergey_Pronin)\
**Post date:** [April 8, 2024, 9:11am UTC](https://forums.percona.com/t/does-percona-mongodb-operator-minimal-cluster-supports-backup/29541/4 "2024-04-08T09:11:45Z")

</div>

Hello @Raji ,

the backup will work even with 1 node.  
You are on a right path and just must ensure that `spec.backup` section is there and `enabled:` is set to `true`.

This is what I added into my cr-minimal.yaml manifest:

```auto
  backup:
    enabled: true
    image: percona/percona-backup-mongodb:2.3.0
    serviceAccountName: percona-server-mongodb-operator
    storages:
      sp-test:
        type: s3
        s3:
          bucket: MYBUCKET
          credentialsSecret: sp-secret
          region: us-central1
          prefix: ""
          endpointUrl: https://storage.googleapis.com

```

My backup manifest looks like this:

```auto
apiVersion: psmdb.percona.com/v1
kind: PerconaServerMongoDBBackup
metadata:
  finalizers:
  - delete-backup
  name: backup1
spec:
  clusterName: minimal-cluster
  storageName: sp-test

```

I ran `kubectl apply -f backup.yaml` and it worked as expected:

```auto
NAME CLUSTER STORAGE DESTINATION TYPE STATUS COMPLETED AGE
backup1 minimal-cluster sp-test s3://MYBUCKET/2024-04-08T09:07:02Z logical ready 4m16s 4m49s

```

Please let me know if you still face any problems.