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release/v20.07 - fix(shutdown): Force exit if CTRL-C is caught before initialization (… #6407

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merged 1 commit into from
Sep 4, 2020
Merged

release/v20.07 - fix(shutdown): Force exit if CTRL-C is caught before initialization (… #6407

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13 changes: 12 additions & 1 deletion dgraph/cmd/alpha/run.go
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,8 @@ var (

// need this here to refer it in admin_backup.go
adminServer web.IServeGraphQL

initDone uint32
)

func init() {
Expand Down Expand Up @@ -572,6 +574,7 @@ func setupServer(closer *z.Closer) {
glog.Infoln("gRPC server started. Listening on port", grpcPort())
glog.Infoln("HTTP server started. Listening on port", httpPort())

atomic.AddUint32(&initDone, 1)
admin.ServerCloser.Wait()
}

Expand Down Expand Up @@ -751,7 +754,13 @@ func run() {
}
numShutDownSig++
glog.Infoln("Caught Ctrl-C. Terminating now (this may take a few seconds)...")
if numShutDownSig == 3 {

switch {
case atomic.LoadUint32(&initDone) < 2:
// Forcefully kill alpha if we haven't finish server initialization.
glog.Infoln("Stopped before initialization completed")
os.Exit(1)
case numShutDownSig == 3:
glog.Infoln("Signaled thrice. Aborting!")
os.Exit(1)
}
Expand All @@ -761,6 +770,8 @@ func run() {
updaters := z.NewCloser(2)
go func() {
worker.StartRaftNodes(worker.State.WALstore, bindall)
atomic.AddUint32(&initDone, 1)

// initialization of the admin account can only be done after raft nodes are running
// and health check passes
edgraph.ResetAcl(updaters)
Expand Down