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#support
Title
# support
a

Al

07/18/2023, 8:14 PM
Hi team!! I notice when restarting clickhouse, the following events occur:
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Pod "chi-signoz-clickhouse-cluster-0-0-0" matches multiple PodDisruptionBudgets. Chose "signoz-clickhouse-cluster" arbitrarily.

Pod "chi-signoz-clickhouse-cluster-0-0-0" matches multiple PodDisruptionBudgets. Chose "signoz-clickhouse" arbitrarily.
This also seemed to interfere with upgrading kubernetes:
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(UpgradeFailed) Drain of aks-node did not complete: Evict blocked by conflicting disruption budgets on pod chi-signoz-clickhouse-cluster-0-0-0 on node aks-node: chi-signoz-clickho
use-cluster-0-0-0. See <http://aka.ms/aks/debugdrainfailures>                                                                                                                                                                                   
Code: UpgradeFailed                                                                                                                                                                                                                           

Message: Drain of aks-node did not complete: Evict blocked by conflicting disruption budgets on pod chi-signoz-clickhouse-cluster-0-0-0 on node aks-node: chi-signoz-clickhouse-cluster-0-0-0.
p

Prashant Shahi

07/19/2023, 6:32 PM
Hi @Al, There should be only one PDB
signoz-clickhouse-cluster
in
signoz-0.19.x
chart. Ref: https://github.com/Altinity/clickhouse-operator/blob/release-0.21.2/pkg/model/creator.go#L838 Have you followed all steps from v0.23 migration docs before upgrading?
a

Al

07/19/2023, 6:35 PM
The PDB errors we experienced were before upgrading to signoz-0.19.1. Glad to hear this should be resolved. Will monitor.
Thanks @Prashant Shahi
p

Prashant Shahi

07/19/2023, 6:48 PM
I see. Do let us know how it goes with the K8s version upgrade as well.
a

Al

07/19/2023, 6:51 PM
We managed to work through the k8s upgrade, just required additional effort to work through it. Thanks!