helm upgrade stopped working

[luvpreetsingh]

Hi, I installed mimir using helm and after the installation, upgraded it many times without any issue.

Today, while upgrading I got this,

$ helm upgrade demo-1 grafana/mimir-distributed -f mimir.yaml -n platform
Error: failed to download "grafana/mimir-distributed" (hint: running `helm repo update` may help)

Then I ran helm repo update,

$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "grafana" chart repository
...Successfully got an update from the "prometheus-community" chart repository
Update Complete. ⎈Happy Helming!⎈

Now, I am trying to run helm upgrade and

$ helm upgrade demo-1 grafana/mimir-distributed -f mimir.yaml -n platform
Error: UPGRADE FAILED: parse error at (mimir-distributed/templates/memcached/_memcached-statefulset.tpl:77): function "mulf" not defined

I think referencing this line https://github.com/grafana/mimir/blob/main/operations/helm/charts/mimir-distributed/templates/memcached/_memcached-statefulset.tpl#L77

This is my mimir.yaml file,

runtimeConfig:
  overrides:
    anonymous:
      max_global_series_per_user: 0

ingester:
  persistentVolume:
    size: "32Gi"

Am I doing anything wrong? Or is this a bug? please help. thank you.

[dimitarvdimitrov]

Hi, what version of helm are you using? helm version should tell you

[luvpreetsingh]

$ helm version
version.BuildInfo{Version:"v3.4.1", GitCommit:"c4e74854886b2efe3321e185578e6db9be0a6e29", GitTreeState:"clean", GoVersion:"go1.14.11"}

[dimitarvdimitrov]

can you try upgrading to 3.9.0?

[luvpreetsingh]

Yes, I just did and it is working now. Thanks, man. Good day to you!