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https://issues.apache.org/jira/browse/FLINK-17177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17085442#comment-17085442
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Canbin Zheng edited comment on FLINK-17177 at 4/17/20, 5:22 AM:
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{quote}I post the {{WatchEvent}} in K8s here[1]. I do not find the "Error" type
means "HTTP error". So could share some information about how the "Error" type
is introduced by HTTP layer error?
[1].
[https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.10/#watchevent-v1-meta]
{quote}
One case in K8s client-go is
[https://github.com/kubernetes/kubernetes/blob/343c1e7636fe5c75cdd378c0b170b26935806de5/staging/src/k8s.io/apimachinery/pkg/watch/streamwatcher.go#L121]
Also, the K8s server could probably send an {{ERROR}} event if something goes
wrong in the HTTP stream.
was (Author: felixzheng):
{quote}I post the {{WatchEvent}} in K8s here[1]. I do not find the "Error" type
means "HTTP error". So could share some information about how the "Error" type
is introduced by HTTP layer error?
[1].
[https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.10/#watchevent-v1-meta]
{quote}
One case in K8s client-go is
[https://github.com/kubernetes/kubernetes/blob/343c1e7636fe5c75cdd378c0b170b26935806de5/staging/src/k8s.io/apimachinery/pkg/watch/streamwatcher.go#L121]
Also, the K8s server could probably send {{ERROR}} event if something goes
wrong in the HTTP stream.
> Handle ERROR event correctly in KubernetesResourceManager#onError
> -----------------------------------------------------------------
>
> Key: FLINK-17177
> URL: https://issues.apache.org/jira/browse/FLINK-17177
> Project: Flink
> Issue Type: Bug
> Components: Deployment / Kubernetes
> Affects Versions: 1.10.0, 1.10.1
> Reporter: Canbin Zheng
> Priority: Major
> Fix For: 1.11.0
>
>
> Currently, once we receive an *ERROR* event that is sent from the K8s API
> server via the K8s {{Watcher}}, then {{KubernetesResourceManager#onError}}
> will handle it by calling the
> {{KubernetesResourceManager#removePodIfTerminated}}. This may be incorrect
> since the *ERROR* event indicates an exception in the HTTP layer that is
> caused by the K8s Server, which means the previously created {{Watcher}} may
> be no longer available and we'd better re-create the {{Watcher}} immediately.
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