8000 port forward cannot stay up · Issue #3351 · derailed/k9s · GitHub
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masterkain opened this issue May 15, 2025 · 2 comments
Open

port forward cannot stay up #3351

masterkain opened this issue May 15, 2025 · 2 comments
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no-repro question Further information is requested

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@masterkain
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masterkain commented May 15, 2025 •
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since some versions (I'm at 0.50.6 but I believe it started around 0.50) port forwards simply cannot stay up, they are getting deleted after few seconds most of the times.

I encountered this on both my machines.

I'm port porwarding a cnpg postgres service

Name:                     eeevp-db-cluster-rw
Namespace:                eeevp
Labels:                   cnpg.io/cluster=eeevp-db-cluster
Annotations:              cnpg.io/operatorVersion: 1.25.1
Selector:                 cnpg.io/cluster=eeevp-db-cluster,cnpg.io/instanceRole=primary
Type:                     ClusterIP
IP Family Policy:         SingleStack
IP Families:              IPv4
IP:                       10.43.48.254
IPs:                      10.43.48.254
Port:                     postgres  5432/TCP
TargetPort:               5432/TCP
Endpoints:                10.42.0.104:5432
Session Affinity:         None
Internal Traffic Policy:  Cluster
Events:                   <none>

forwarding goes away as soon as I use the port (mapped to 5433 locally), say for a pg_dump operation.

😗 PortForward failed for eeevp/eeevp-db-cluster-1|postgres|5433:5432: lost connection to pod. Deleting!
@derailed
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@masterkain I can seem to repro this ;( I've left pf running all night, hitting the url every 10s, pf remained up.
Does this happen only on the pg pod or others too?

@derailed derailed added question Further information is requested no-repro labels May 18, 2025
@ZakShearman
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ZakShearman commented May 23, 2025 •
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I'm experiencing this same issue, specifically when connecting to my CNPG Postgres pod - it doesn't occur with other pods.

I was on k9s version 0.40.10 initially, upgraded to 0.50.6 and the issue is still occurring.

I can create the port forward, perform 1 interaction with the database (e.g. refreshing database tables via datagrip), that succeeds but then the tunnel terminates immediately after with 😗 PortForward failed for immich/db-1|postgres|5432:5432: lost connection to pod. Deleting!

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