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Instead of treating 0 is a default value, use http.DefaultMaxIdleConnsPerHost

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This commit is contained in:
Nimi Wariboko Jr 2016-08-05 15:41:32 -07:00
parent db4cd8ee2d
commit 5b5e365295
4 changed files with 13 additions and 6 deletions
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2
caddyhttp/proxy/proxy.go
View File

@ -108,7 +108,7 @@ func (p Proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
if nameURL, err := url.Parse(host.Name); err == nil {
outreq.Host = nameURL.Host
if proxy == nil {
proxy = NewSingleHostReverseProxy(nameURL, host.WithoutPathPrefix, 0)
proxy = NewSingleHostReverseProxy(nameURL, host.WithoutPathPrefix, http.DefaultMaxIdleConnsPerHost)
}
// use upstream credentials by default

6
caddyhttp/proxy/proxy_test.go
View File

@ -716,7 +716,7 @@ func newFakeUpstream(name string, insecure bool) *fakeUpstream {
from: "/",
host: &UpstreamHost{
Name: name,
ReverseProxy: NewSingleHostReverseProxy(uri, "", 0),
ReverseProxy: NewSingleHostReverseProxy(uri, "", http.DefaultMaxIdleConnsPerHost),
},
}
if insecure {
@ -744,7 +744,7 @@ func (u *fakeUpstream) Select() *UpstreamHost {
}
u.host = &UpstreamHost{
Name: u.name,
ReverseProxy: NewSingleHostReverseProxy(uri, u.without, 0),
ReverseProxy: NewSingleHostReverseProxy(uri, u.without, http.DefaultMaxIdleConnsPerHost),
}
}
return u.host
@ -785,7 +785,7 @@ func (u *fakeWsUpstream) Select() *UpstreamHost {
uri, _ := url.Parse(u.name)
return &UpstreamHost{
Name: u.name,
ReverseProxy: NewSingleHostReverseProxy(uri, u.without, 0),
ReverseProxy: NewSingleHostReverseProxy(uri, u.without, http.DefaultMaxIdleConnsPerHost),
UpstreamHeaders: http.Header{
"Connection": {"{>Connection}"},
"Upgrade": {"{>Upgrade}"}},

7
caddyhttp/proxy/reverseproxy.go
View File

@ -122,7 +122,10 @@ func NewSingleHostReverseProxy(target *url.URL, without string, keepalive int) *
rp.Transport = &http.Transport{
Dial: socketDial(target.String()),
}
} else if keepalive != 0 {
} else if keepalive != http.DefaultMaxIdleConnsPerHost {
// if keepalive is equal to the default,
// just use default transport, to avoid creating
// a brand new transport
rp.Transport = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
@ -132,7 +135,7 @@ func NewSingleHostReverseProxy(target *url.URL, without string, keepalive int) *
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
if keepalive < 0 {
if keepalive == 0 {
rp.Transport.(*http.Transport).DisableKeepAlives = true
} else {
rp.Transport.(*http.Transport).MaxIdleConnsPerHost = keepalive

4
caddyhttp/proxy/upstream.go
View File

@ -55,6 +55,7 @@ func NewStaticUpstreams(c caddyfile.Dispenser) ([]Upstream, error) {
FailTimeout: 10 * time.Second,
MaxFails: 1,
MaxConns: 0,
KeepAlive: http.DefaultMaxIdleConnsPerHost,
}
if !c.Args(&upstream.from) {
@ -321,6 +322,9 @@ func parseBlock(c *caddyfile.Dispenser, u *staticUpstream) error {
if err != nil {
return err
}
if n < 0 {
return c.ArgErr()
}
u.KeepAlive = n
default:
return c.Errf("unknown property '%s'", c.Val())