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embed: gracefully close peer handler #7879

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merged 1 commit into from
May 8, 2017
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@gyuho gyuho commented May 4, 2017

Passing canceled context to close existing idle connections only once and to not delay the server shutdown. And make embed.Etcd.Peers non-exported (need release note).

c.f. #6174

@gyuho gyuho changed the title *: gracefully close peer http.Server embed: gracefully close peer http.Server May 5, 2017
@gyuho gyuho mentioned this pull request May 5, 2017
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@gyuho gyuho changed the title embed: gracefully close peer http.Server embed: remove embed.Etcd.Peers field, gracefully close peer handler May 5, 2017
@gyuho gyuho changed the title embed: remove embed.Etcd.Peers field, gracefully close peer handler embed: remove Etcd.Peers field, gracefully close peer handler May 5, 2017
@gyuho gyuho added the WIP label May 5, 2017
@gyuho gyuho force-pushed the http-server branch 5 times, most recently from 140338e to 723d247 Compare May 5, 2017 15:15
@gyuho gyuho requested a review from heyitsanthony May 5, 2017 15:19
@gyuho gyuho added WIP and removed WIP labels May 5, 2017
embed/etcd.go Outdated
if plns[i], err = rafthttp.NewListener(u, &cfg.PeerTLSInfo); err != nil {
return nil, err
var l net.Listener
l, err = rafthttp.NewListener(u, &cfg.PeerTLSInfo)
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l, lerr := to avoid the var l net.Listener?

embed/etcd.go Outdated
// gracefully shutdown http.Server; close open listeners, idle connections
// pass canceled context to close existing idle connections only once
// and not delay the server shutdown
serr := srv.Shutdown(canceled)
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return srv.Shutdown(canceled)?

embed/etcd.go Outdated
@@ -51,7 +55,9 @@ const (

// Etcd contains a running etcd server and its listeners.
type Etcd struct {
Peers []net.Listener
peerServeFuncs []func() error
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type Etcd struct {
    Peers []peerListener
    ...
}

...

type peerListener struct {
    net.Listener
    serve func() error
    close func(context.Context) error
}

?

@gyuho gyuho changed the title embed: remove Etcd.Peers field, gracefully close peer handler embed: gracefully close peer handler May 5, 2017
@gyuho gyuho force-pushed the http-server branch 4 times, most recently from 3b6e852 to 823f9b3 Compare May 5, 2017 19:41
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gyuho commented May 5, 2017

Apparently this breaks in e2e. Will investigate.

EXPECT_DEBUG=1 go test -v -run TestCtlV3AuthMemberRemove
EXPECT_DEBUG=1 go test -v -run TestCtlV3MemberRemove

Both pass withNoStrictReconfig

@gyuho gyuho force-pushed the http-server branch 6 times, most recently from ce2e79c to 1367d54 Compare May 6, 2017 14:43
Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
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gyuho commented May 8, 2017

All fixed (it had to start rafthttp layer first).

PTAL.

@gyuho gyuho merged commit 3a2e765 into etcd-io:master May 8, 2017
@gyuho gyuho deleted the http-server branch May 8, 2017 21:00
@@ -226,12 +260,18 @@ func startPeerListeners(cfg *Config) (plns []net.Listener, err error) {
plog.Warningf("The scheme of peer url %s is HTTP while client cert auth (--peer-client-cert-auth) is enabled. Ignored client cert auth for this url.", u.String())
}
}
if plns[i], err = rafthttp.NewListener(u, &cfg.PeerTLSInfo); err != nil {
peers[i] = &peerListener{close: func(context.Context) error { return nil }}

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Just curious, why are we initializing the close function here?

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3 participants