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httpproxy: fix race on getting close notifier channel #5269

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merged 1 commit into from
May 4, 2016

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heyitsanthony
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Fixes #5267

@heyitsanthony
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/cc @gyuho

@@ -112,9 +112,10 @@ func (p *reverseProxy) ServeHTTP(rw http.ResponseWriter, clientreq *http.Request
closeNotifier, ok := rw.(http.CloseNotifier)
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Can you explain more about the race? I failed to find the race.

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The response writer is closed before the goroutine is scheduled. This nils out some internal state of the response writer so when the goroutine finally runs CloseNotify() it panics.

@xiang90
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xiang90 commented May 4, 2016

LGTM.

@gyuho
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gyuho commented May 4, 2016

LGTM. Thanks.

@heyitsanthony heyitsanthony merged commit b24d003 into etcd-io:master May 4, 2016
@heyitsanthony heyitsanthony deleted the fix-httpproxy-race branch May 4, 2016 16:49
@raoofm
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raoofm commented May 4, 2016

This should be back-ported right.

@xiang90
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xiang90 commented May 4, 2016

@raoofm Yes. Next week.

@raoofm
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raoofm commented May 4, 2016

@xiang90 Thanks

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4 participants