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fix: Improve tailnet connections by reducing timeouts (#5043)

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* fix: Improve tailnet connections by reducing timeouts

This awaits connection ping before running a dial. Before,
we were hitting the TCP retransmission and handshake timeouts,
which could intermittently add 1 or 5 seconds to a connection
being initialized.

* Update Tailscale
This commit is contained in:
Kyle Carberry
2022-11-13 11:33:05 -06:00
committed by GitHub
parent 4646f58072
commit 82f494c99c
12 changed files with 112 additions and 108 deletions
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7
agent/agent_test.go
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@ -498,12 +498,7 @@ func TestAgent(t *testing.T) {
}()
conn, _ := setupAgent(t, codersdk.WorkspaceAgentMetadata{}, 0)
require.Eventually(t, func() bool {
ctx, cancelFunc := context.WithTimeout(context.Background(), testutil.IntervalFast)
defer cancelFunc()
_, err := conn.Ping(ctx)
return err == nil
}, testutil.WaitMedium, testutil.IntervalFast)
require.True(t, conn.AwaitReachable(context.Background()))
conn1, err := conn.DialContext(context.Background(), l.Addr().Network(), l.Addr().String())
require.NoError(t, err)
defer conn1.Close()