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"No healthy upstream" when using PVC #11

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grobbie opened this issue Feb 17, 2022 · 2 comments
Open

"No healthy upstream" when using PVC #11

grobbie opened this issue Feb 17, 2022 · 2 comments
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bug Something isn't working Kubeflow 1.8 This issue affects the Charmed Kubeflow 1.8 release

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@grobbie
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grobbie commented Feb 17, 2022

When creating a new tensorboard with a PVC mounted at mnt/tfboard, I get the error "no healthy upstream" when trying to connect to the board.

If I shell into the container, I can see that the tensorBoard is running perfectly fine:

microk8s.kubectl exec -it $(microk8s.kubectl get pods -nrob | grep ^demo- | awk '{ print $1 }' | tail -n 1) -nrob -- bash
root@demo-7498d9d94-zk5gw:/# curl -s localhost:6006/ | head -n 17
<!doctype html><!--
@license
Copyright 2016 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
--><meta charset="utf-8">
<title>TensorBoard</title>

image

image
@ca-scribner
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Did this error persist? I have a feeling if you refreshed the page a few moments later it would work.

If I am right, the reason for this is the same as this issue where that the notebook controller follows whether a container on the pod ready, not whether all required containers are ready. This is a common problem with notebooks, where the connect button will go green slightly before the notebook server is actually presenting the page. If you're quick, you'll get this error.

I don't think this is a heavy lift to fix, but it would be a fix upstream

@ca-scribner ca-scribner added the bug Something isn't working label Feb 18, 2022
@grobbie
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grobbie commented Feb 18, 2022

the problem has persisted, sorry...

@DnPlas DnPlas added the Kubeflow 1.8 This issue affects the Charmed Kubeflow 1.8 release label May 2, 2023
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bug Something isn't working Kubeflow 1.8 This issue affects the Charmed Kubeflow 1.8 release
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@grobbie @DnPlas @ca-scribner