Error alerts about kube cluster in 21.04

[youngtaek]

Hello,

I've just installed TNS 21.04 and facing two errors below:

CRITICAL
Failed to configure kubernetes cluster for Applications: [EFAULT] Unable to load images from file: exit status 2: "/usr/sbin/zfs fs snapshot Main/ix-applications/docker/92bac9fdd4069c13d11f149705c1a6f2fe1ba6c455598622ccfc5763d8a46c23@373797081" => cannot open 'Main/ix-applications/docker/92bac9fdd4069c13d11f149705c1a6f2fe1ba6c455598622ccfc5763d8a46c23': dataset does not exist usage: snapshot [-r] [-o property=value] ... @ ... For the property list, run: zfs set|get For the delegated permission list, run: zfs allow|unallow
2021-05-25 15:05:41

CRITICAL
Failed to start kubernetes cluster for Applications: [EFAULT] Failed to configure PV/PVCs support: (404) Reason: Not Found HTTP response headers: HTTP response body: 404 page not found
2021-05-25 14:51:12


FYI, I use the system only for data storage right now, not using any kubernetes-related features.
No idea why these errors pop out

 

[ornias]

uhmm... Capitals in your pool name isn't the best idea ever tbh.

That being said:
I would suggest just nuking ix-applications and try again.

 

[youngtaek]

uhmm... Capitals in your pool name isn't the best idea ever tbh.

That being said:
I would suggest just nuking ix-applications and try again.

Didn't know that using capital matters...
I tried to nuke ix-applications as suggested, couldn't as there're containers placed inside there that can't be removed (currently used?)
Below are the list of containers:

Code:

truenas# docker ps --all
CONTAINER ID   IMAGE          COMMAND    CREATED        STATUS    PORTS     NAMES
675f0b0b27d8   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_nextcloud-c99b55c59-zf6fm_ix-nextcloud_9fbdb4cc-f1ba-4677-a28d-6368912af9fb_2
e8d98f1f29e3   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_openebs-zfs-controller-0_kube-system_39a90ba6-9c77-4862-8f1f-7f657d6051e4_2
aad9a4d6bba9   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_nextcloud-postgres-b9495f5db-krlcd_ix-nextcloud_848c1a24-3aca-4bff-9a7e-8ea45099986a_2
eef08f8fa883   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_coredns-66c464876b-q9zfm_kube-system_baa05374-49f5-41fc-a7ea-512104f198f7_2
546759f26d26   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_openebs-zfs-controller-0_kube-system_39a90ba6-9c77-4862-8f1f-7f657d6051e4_1
86c65acc8c2d   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_coredns-66c464876b-q9zfm_kube-system_baa05374-49f5-41fc-a7ea-512104f198f7_1
52d36b202b9d   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_nextcloud-postgres-b9495f5db-krlcd_ix-nextcloud_848c1a24-3aca-4bff-9a7e-8ea45099986a_1
2822c1376fe4   da86e6ba6ca1   "/pause"   3 months ago   Dead                k8s_POD_nvidia-device-plugin-daemonset-glsrg_kube-system_145df2f0-6f38-4851-828f-02a5ae4534e3_1

And this is the error when tried to remove those:

Code:

truenas# docker rm -f $(docker ps -a -q)
Error response from daemon: container 675f0b0b27d8400c5ab512f1b91f9d4afb0e158104591a04b8ed7c4475ffa185: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/40cdbbf007a69b9656acd415db2b2ccea3c383006e6176943c61615a62a559fd" => cannot open 'Main/ix-applications/docker/40cdbbf007a69b9656acd415db2b2ccea3c383006e6176943c61615a62a559fd': dataset does not exist
Error response from daemon: container e8d98f1f29e308b3beba7a209640b49f6e1d97cc1d0862c3aebf30e3a28a8687: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/c6d28e951be26896b988130a15f0c8aca4bd61d385fbfa29bac5ea5460a52886" => cannot open 'Main/ix-applications/docker/c6d28e951be26896b988130a15f0c8aca4bd61d385fbfa29bac5ea5460a52886': dataset does not exist
Error response from daemon: container aad9a4d6bba92d0c60d740ab1f1881ee0b974b8091a893d1af103b72644e7cf3: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/5e6fa7f47151b24ed66d4e6db4c6f9e2b0513dcc68c245faa2eef9049a2b961d" => cannot open 'Main/ix-applications/docker/5e6fa7f47151b24ed66d4e6db4c6f9e2b0513dcc68c245faa2eef9049a2b961d': dataset does not exist
Error response from daemon: container eef08f8fa8839d7dc116277560d647050ded54545ef0090f16694ddb7184d1d8: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/c943cafdfee87f06457e37f6dfc531bcc4e47b45f978d409feafc6a9a945adc7" => cannot open 'Main/ix-applications/docker/c943cafdfee87f06457e37f6dfc531bcc4e47b45f978d409feafc6a9a945adc7': dataset does not exist
Error response from daemon: container 546759f26d269b93e186128628323ed69c2856da8456141259d98ca6a6b557e9: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/2df0364b436aa0601c2ac226ac7b5eb67966595a813c069de49472ce2a282dc2" => cannot open 'Main/ix-applications/docker/2df0364b436aa0601c2ac226ac7b5eb67966595a813c069de49472ce2a282dc2': dataset does not exist
Error response from daemon: container 86c65acc8c2db783e86dc82200324ad09906ff6e50699a1f0ed1fecf9f7f4d6f: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/308b66ab0eb584563d39e1eaf9808e916b2536146aaff95fdac55b676fbcf922" => cannot open 'Main/ix-applications/docker/308b66ab0eb584563d39e1eaf9808e916b2536146aaff95fdac55b676fbcf922': dataset does not exist
Error response from daemon: container 52d36b202b9dcb298213f1526de0a9639c12e79e35bfd9ab58d4454650ae125f: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/77993f4e0863396665ad33e338ffc9bb5115957e2ac046c4ab72559a4eb5188d" => cannot open 'Main/ix-applications/docker/77993f4e0863396665ad33e338ffc9bb5115957e2ac046c4ab72559a4eb5188d': dataset does not exist
Error response from daemon: container 2822c1376fe4d7e4546a7185ff210b1ccafc7e9a3069f4350187ee767213ff8a: driver "zfs" failed to remove root filesystem: exit status 1: "/usr/sbin/zfs fs destroy -r Main/ix-applications/docker/fe13cc708536c5de25c8f64e66a455c5efb75d3c81c643a11f1850914ff5df87" => cannot open 'Main/ix-applications/docker/fe13cc708536c5de25c8f64e66a455c5efb75d3c81c643a11f1850914ff5df87': dataset does not exist

 

[ornias]

@youngtaek I gave a summary.
Your execution failed.

I don't have the time to help you too much on this, but you should've disabled the services first then remove it and recreated the applicationpool using the GUI.