Re: [kubernetes-users] Load balancer drops backend while leaving frontend connected

2018-04-04 Thread Tyler Johnson 
No this is during regular operation.

On Wed, Apr 4, 2018 at 11:39 AM, 'Nicks' via Kubernetes user discussion and
Q  wrote:

> Did you remove a node from the cluster? Even if a node was in the cluster
> and didn't run any workload, it could still be used to proxy connections
> from the LB and the service pod.
>
> On Friday, March 30, 2018 at 7:42:42 AM UTC-7, Tyler Johnson wrote:
>>
>> Environment: GKE 1.7.12-gke.1
>> I believe the ingress controller is GLBC[1]
>>
>> [1] https://github.com/kubernetes/ingress-gce
>>
>> On Thu, Mar 29, 2018 at 11:56 PM, 'Tim Hockin' via Kubernetes user
>> discussion and Q  wrote:
>>
>>> Which environment and which Ingress controller?
>>>
>>> On Thu, Mar 29, 2018 at 8:42 PM Tyler Johnson 
>>> wrote:
>>>
 Is it possible that an HTTP load balancer (auto-configured as part of
 an Ingress) could occasionally drop backend connections while leaving the
 frontend connected?

 I'm running a websocket backend service (the backend-service timeout is
 high) and on very rare occasions I'll see the service pod log that the
 client dropped connection, while on the client side the HTTP connection is
 still ESTABLISHED. So I'm guessing it must be the LB.

 Is there a recommended way to troubleshoot the LB?

 Any other potential scenarios that could cause this problem?

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Re: [kubernetes-users] Load balancer drops backend while leaving frontend connected

2018-04-04 Thread 'Nicks' via Kubernetes user discussion and Q 
Did you remove a node from the cluster? Even if a node was in the cluster 
and didn't run any workload, it could still be used to proxy connections 
from the LB and the service pod. 

On Friday, March 30, 2018 at 7:42:42 AM UTC-7, Tyler Johnson wrote:
>
> Environment: GKE 1.7.12-gke.1
> I believe the ingress controller is GLBC[1]
>
> [1] https://github.com/kubernetes/ingress-gce
>
> On Thu, Mar 29, 2018 at 11:56 PM, 'Tim Hockin' via Kubernetes user 
> discussion and Q  wrote:
>
>> Which environment and which Ingress controller?
>>
>> On Thu, Mar 29, 2018 at 8:42 PM Tyler Johnson > > wrote:
>>
>>> Is it possible that an HTTP load balancer (auto-configured as part of an 
>>> Ingress) could occasionally drop backend connections while leaving the 
>>> frontend connected?
>>>
>>> I'm running a websocket backend service (the backend-service timeout is 
>>> high) and on very rare occasions I'll see the service pod log that the 
>>> client dropped connection, while on the client side the HTTP connection is 
>>> still ESTABLISHED. So I'm guessing it must be the LB.
>>>
>>> Is there a recommended way to troubleshoot the LB?
>>>
>>> Any other potential scenarios that could cause this problem?  
>>>
>>> -- 
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>>> .
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>>> For more options, visit https://groups.google.com/d/optout.
>>>
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>
>

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Re: [kubernetes-users] Load balancer drops backend while leaving frontend connected

2018-03-30 Thread Tyler Johnson 
Environment: GKE 1.7.12-gke.1
I believe the ingress controller is GLBC[1]

[1] https://github.com/kubernetes/ingress-gce

On Thu, Mar 29, 2018 at 11:56 PM, 'Tim Hockin' via Kubernetes user
discussion and Q  wrote:

> Which environment and which Ingress controller?
>
> On Thu, Mar 29, 2018 at 8:42 PM Tyler Johnson <
> tyler.john...@risevision.com> wrote:
>
>> Is it possible that an HTTP load balancer (auto-configured as part of an
>> Ingress) could occasionally drop backend connections while leaving the
>> frontend connected?
>>
>> I'm running a websocket backend service (the backend-service timeout is
>> high) and on very rare occasions I'll see the service pod log that the
>> client dropped connection, while on the client side the HTTP connection is
>> still ESTABLISHED. So I'm guessing it must be the LB.
>>
>> Is there a recommended way to troubleshoot the LB?
>>
>> Any other potential scenarios that could cause this problem?
>>
>> --
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>> Visit this group at https://groups.google.com/group/kubernetes-users.
>> For more options, visit https://groups.google.com/d/optout.
>>
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Re: [kubernetes-users] Load balancer drops backend while leaving frontend connected

2018-03-29 Thread 'Tim Hockin' via Kubernetes user discussion and Q 
Which environment and which Ingress controller?

On Thu, Mar 29, 2018 at 8:42 PM Tyler Johnson 
wrote:

> Is it possible that an HTTP load balancer (auto-configured as part of an
> Ingress) could occasionally drop backend connections while leaving the
> frontend connected?
>
> I'm running a websocket backend service (the backend-service timeout is
> high) and on very rare occasions I'll see the service pod log that the
> client dropped connection, while on the client side the HTTP connection is
> still ESTABLISHED. So I'm guessing it must be the LB.
>
> Is there a recommended way to troubleshoot the LB?
>
> Any other potential scenarios that could cause this problem?
>
> --
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> For more options, visit https://groups.google.com/d/optout.
>

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[kubernetes-users] Load balancer drops backend while leaving frontend connected

2018-03-29 Thread Tyler Johnson 
Is it possible that an HTTP load balancer (auto-configured as part of an 
Ingress) could occasionally drop backend connections while leaving the 
frontend connected?

I'm running a websocket backend service (the backend-service timeout is 
high) and on very rare occasions I'll see the service pod log that the 
client dropped connection, while on the client side the HTTP connection is 
still ESTABLISHED. So I'm guessing it must be the LB.

Is there a recommended way to troubleshoot the LB?

Any other potential scenarios that could cause this problem?  

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