embed: fix *grpc.Server panic on GracefulStop with TLS-enabled server #8987
Conversation
|
@jamesdphillips @xiang90 Semaphore CI in previous PR was not working for some reason. Creating a fresh branch for proper testing. |
embed/etcd.go
Outdated
| @@ -82,7 +82,7 @@ type Etcd struct { | |||
| type peerListener struct { | |||
| net.Listener | |||
| serve func() error | |||
| close func(context.Context) error | |||
| close func(time.Duration) error | |||
There was a problem hiding this comment.
https://golang.org/pkg/net/http/#Server.Shutdown takes context. i am not sure why we want to change to time.duration.
| @@ -219,23 +219,30 @@ func (e *Etcd) Config() Config { | |||
| return e.cfg | |||
| } | |||
|
|
|||
| // Close gracefully shuts down all servers/listeners. | |||
There was a problem hiding this comment.
we should mention there is a default timeout for the graceful shutdown. or we will do a force shutdown.
There was a problem hiding this comment.
@xiang90 Comments are added. PTAL.
embed/etcd.go
Outdated
| shutdownNow := func() { | ||
| // first, close the http.Server | ||
| ctx, cancel := context.WithTimeout(context.Background(), timeout) | ||
| ss.http.Shutdown(ctx) |
There was a problem hiding this comment.
@xiang90 Here we construct the context for Shutdown?
There was a problem hiding this comment.
why not pass in ctx direction? i just not sure why we want duration at the first place.
embed/etcd.go
Outdated
| timeout := 2 * time.Second | ||
| if e.Server != nil { | ||
| timeout = e.Server.Cfg.ReqTimeout() | ||
| func stopServers(ss *servers, timeout time.Duration) { |
There was a problem hiding this comment.
why not take a context but time.duration?
There was a problem hiding this comment.
Ok, that works too. Let me change to context.
gyuho
force-pushed
the
tls-shutdown
branch
3 times, most recently
from
62aa2e3
to
efe2c19
Compare
gyuho
changed the title
gyuho
changed the title
gyuho
changed the title
*grpc.Server panic on GracefulStop with TLS-enabled server
gyuho
changed the title
*grpc.Server panic on GracefulStop with TLS-enabled server
|
lgtm if CIs all turn green. |
|
GitHub CI status polling seems outdated. All CIs passed (https://jenkins-etcd.prod.coreos.systems/job/etcd-proxy/3639/). Will merge tomorrow. |
Avoid panic when stopping gRPC Server if TLS configuration is present. Provided solution (attempts to) implement suggestion from gRPC team: grpc/grpc-go#1384 (comment). Fixes etcd-io#8916
Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Codecov Report
@@ Coverage Diff @@
## master #8987 +/- ##
=========================================
Coverage ? 76.03%
=========================================
Files ? 359
Lines ? 29819
Branches ? 0
=========================================
Hits ? 22672
Misses ? 5563
Partials ? 1584
Continue to review full report at Codecov.
|
|
Late response but thank you! |
Cherry-pick #8987. Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Cherry-pick #8987. Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Replace #8986.
Fix #8916.