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fix: draining remote stream after port-forward connection broken

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Signed-off-by: Nic <qianyong@api7.ai>

Kubernetes-commit: dbe6b6657bacc846656f4009ee869ca996dde1da
This commit is contained in:
Nic 2024-10-04 14:48:15 +08:00 committed by Kubernetes Publisher
parent 2d3b1e2feb
commit d6404c8d76
1 changed files with 5 additions and 0 deletions
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5
tools/portforward/portforward.go
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@ -406,6 +406,11 @@ func (pf *PortForwarder) handleConnection(conn net.Conn, port ForwardedPort) {
case <-remoteDone:
case <-localError:
}
/*
reset dataStream to discard any unsent data, preventing port forwarding from being blocked.
we must reset dataStream before waiting on errorChan, otherwise, the blocking data will affect errorStream and cause <-errorChan to block indefinitely.
*/
_ = dataStream.Reset()
// always expect something on errorChan (it may be nil)
err = <-errorChan